Page 1 ENMDAT-MX1-8 PART NO. Operator's Manual 135US class 135US 225US class 225USLC 345US class 345USLC Hydraulic Excavator URL:http://www.hitachi-c-m.com Serial No. ZX135US-6 class 100001 and up ZX225US-6 class 500001 and up ZX345US-6 class 500001 and up PRINTED IN JAPAN (K) 2022, 03...
Page 2 INTRODUCTION Read this manual carefully to learn how to operate and Warranty is provided as a part of Hitachi’s support service your machine correctly. Failure to do so could program for customers who operate and maintain their result in personal injury or machine damage.
Page 3 MACHINE NUMBERS INDEX SAFETY VISIBILITY MAP SAFETY SIGNS NAME OF COMPONENTS GETTING ON AND OFF THE MACHINE OPERATOR’S STATION BREAK-IN OPERATING THE ENGINE DRIVING THE MACHINE OPERATING THE MACHINE TRANSPORTING MAINTENANCE MAI N TENANCE UNDER SPECI A L ENVI R ONMENTAL CONDI T I O NS STORAGE TROUBLESHOOTING SPECIFICATIONS...
Page 5: Table Of Contents
CONTENTS MACHINE NUMBERS ............1 Avoid Applying Heat to Lines Containing Flammable Fluids ..............S-35 SAFETY ................S-1 Precautions for Handling Accumulator and Recognize Safety Information ............S-1 Gas Damper ................S-35 Understand Signal Words .............S-1 Remove Paint Before Welding or Heating ......S-36 Follow Safety Instructions ............S-2 Beware of Asbestos and Silica Dust and Other Prepare for Emergencies ...............S-3...
Page 6 CONTENTS Air Conditioner ON/OFF ............1-34 Travel Alarm Deactivation Switch (Optional) ....1-101 Radio ....................1-35 Rear Light Switch ..............1-101 Work Mode ..................1-36 Perimeter Lights Switch (Optional) ........1-101 Attachment Selection ............1-36 Seat Heater Switch (Optional) ..........1-102 Mail (Optional) ................1-37 Electrical Control Main Switch .........1-103 Setting Menu .................
Page 7 CONTENTS Console and Seat Fore-aft Adjustment ......1-144 Auto-Idle ON/OFF ..............5-6 Seat Fore-Aft Adjustment ..........1-144 Auto Shut-Down ................5-7 Suspension Adjustment .............1-144 Aftertreatment Device Manual Regeneration ....5-10 Backrest Adjustment ............1-145 Work Mode ..................5-12 Armrest Adjustment ............1-145 Power Boost Switch ..............5-15 Adjusting Operator’s Seat (Optional) ........1-146 Power Mode ...................
Page 8 CONTENTS (Only ZX345US-6 class) ............7-44 Convert Bucket Connection Into Face Shovel ....7-116 Electric Grease Gun ..............7-46 Adjust Bucket Linkage ............7-117 Components Name ..............7-47 Remove Travel Levers ............7-118 Battery Charger Operation ..........7-48 Check and Replace Seat Belt ..........7-118 Charger Lamps .................
Page 9 CONTENTS Bucket Types and Applications ..........12-8 ZX225USLC-6 ................12-8 Specifications ................. 12-9 ZX345USLC-6 ................12-9 Working Ranges ................12-10 ZX345USLC-6 ................12-10 Shoe Types and Applications ..........12-11 ZX345USLC-6 ................12-11 Bucket Types and Applications ..........12-12 ZX345USLC-6 ................12-12 OPTIONAL ATTACHMENTS AND DEVICES ....13-1 Using Pad Crawler Shoe .............
Page 10 CONTENTS MEMO ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 11 MACHINE NUMBERS The manufacturing Nos. explained in this group is the individual number (serial No.) given to each machine and main components. These numbers are requested when inquiring any information on the machine and/or components. Fill these serial Nos. in the blank spaces in this group to immediately make them available upon request.
Page 12: Machine Numbers
MACHINE NUMBERS SCR (Selective Catalytic Reduction) Catalyst TYPE MFG. NO. MDC1-00-002 ZX135US-6 MDC1-00-001 ZX225USLC-6 MDC1-01-510 ZX345USLC-6...
Page 13 MACHINE NUMBERS DOC (Diesel Oxidation Catalyst) TYPE MFG. NO. TYPE MFG. NO. MDC1-00-002 ZX135US-6 MDC1-00-001 ZX225USLC-6 MDC1-01-510 ZX345USLC-6...
Page 14 MACHINE NUMBERS Travel Motor TYPE MFG. NO. : (L) MFG. NO. : (R) M178-07-047 Swing Motor TYPE MFG. NO. M178-07-086...
Page 15 MACHINE NUMBERS Hydraulic Pump TYPE MFG. NO. MDAA-07-072 ZX135US-6 MDAA-00-003 ZX225USLC-6 MDD5-00-002 ZX345USLC-6...
Page 16 MACHINE NUMBERS MEMO ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 17: Safety
SAFETY Recognize Safety Information  These are the SAFETY ALERT SYMBOLS.  When you see these symbols on your machine or in this manual, be alert to the potential for personal injury.  Follow recommended precautions and safe operating practices. SA-2644 Understand Signal Words ...
Page 18: Follow Safety Instructions
 Do not use attachments and/or optional parts or equipment not authorized by Hitachi. Failure to do so may deteriorate the safety, function, and/or service life of the machine. In addition, personal accident, machine...
Page 19: Prepare For Emergencies
SAFETY Prepare for Emergencies  Be prepared for a fire or an accident.  Keep a first aid kit and fire extinguisher on hand.  Thoroughly read and understand the label attached on the fire extinguisher to use it properly. ...
Page 20: Protect Against Noise
SAFETY Protect Against Noise  Prolonged exposure to loud noise can cause impairment or loss of hearing.  Wear a suitable hearing protective device such as earmuffs or earplugs to protect against objectionable or uncomfortably loud noises. SA-434 Inspect Machine ...
Page 21: General Precautions For The Cab
SAFETY General Precautions for the Cab  Before entering the cab, thoroughly remove all dirt and/or oil such as mud, grease, soil or stones from the soles of your work boots. If any controls such as a pedal is operated while with dirt and/or oil on the soles of the operator’s work boots, the operator’s foot may slip off the pedal, possibly resulting in a personal accident.
Page 22: Use Handholds And Steps
SAFETY Use Handholds and Steps  Falling is one of the major causes of personal injury.  When you get on and off the machine, always face the machine and maintain a three-point contact with the steps and handrails.  Do not use any controls as hand-holds. ...
Page 23: Ensure Safety Before Rising From Or Leaving Operator's Seat
SAFETY Ensure Safety Before Rising from or Leaving Operator’s Seat  Before rising from the operator’s seat to open/close either side window or to adjust the seat position, be sure to first lower the front attachment to the ground and then move the pilot control shut-off lever to the LOCK position.
Page 24: Move And Operate Machine Safely
SAFETY Move and Operate Machine Safely  Bystanders can be run over.  Take extra care not to run over bystanders. Confirm the location of bystanders before moving, swinging, or operating the machine.  Always keep the travel alarm and horn in working condition (if equipped).
Page 25: Jump Starting
SAFETY Jump Starting  Battery gas can explode, resulting in serious injury.  If the engine must be jump started, be sure to follow the instructions shown in the “OPERATING THE ENGINE” chapter in the operator’s manual.  The operator must be in the operator’s seat so that the machine will be under control when the engine starts.
Page 26: Precautions For Operations
SAFETY Precautions for Operations  Investigate the work site before starting operations.  Be sure to wear close fitting clothing and safety equipment appropriate for the job, such as a hard hat, etc. when operating the machine.  Keep bystanders and obstacles clear of the area of machine operation.
Page 27: Investigate Job Site Beforehand
SAFETY Investigate Job Site Beforehand  When working at the edge of an excavation or on a road shoulder, the machine could tip over, possibly resulting in serious injury or death.  Investigate the configuration and ground conditions of the job site beforehand to prevent the machine from falling and to prevent the ground, stockpiles or banks from collapsing.
Page 28: Install Opg Guard
Install OPG Guard In case the machine is operated in areas where the possibilities of falling stones or debris exist, equip Hitachi OPG guard. Consult your authorized dealer for installing the OPG guard. In order not to impair operator protective structure: Replace damaged OPG guard.
Page 29: Provide Signals For Jobs Involving Multiple Machines
SAFETY Provide Signals for Jobs Involving Multiple Machines  For jobs involving multiple machines, provide signals commonly known by all personnel involved. Also, appoint a signal person to coordinate the job site. Make sure that all personnel obey the signal person’s directions. SA-481 Confirm Direction of Machine to Be Driven ...
Page 30: Drive Machine Safely
SAFETY Drive Machine Safely  Before driving the machine, always confirm that the travel levers/pedals direction corresponds to the direction you wish to drive.  Be sure to detour around any obstructions.  Avoid traveling over obstructions. Soil, fragments of rocks, and/or metal pieces may scatter around the machine.
Page 31 SAFETY  Avoid swinging the upperstructure on slopes. Never attempt to swing the upperstructure downhill. The machine may tip over. If swinging uphill is unavoidable, carefully operate the upperstructure and boom at slow speed.  If the engine stalls on a slope, immediately lower the bucket to the ground.
Page 32: Avoid Injury From Rollaway Accidents
SAFETY Avoid Injury from Rollaway Accidents  Death or serious injury may result if you attempt to mount or stop a moving machine. To avoid rollaways:  Select level ground when possible to park the machine.  Do not park the machine on a gradient. ...
Page 33: Avoid Injury From Back-Over And Swing Accidents
SAFETY Avoid Injury from Back-Over and Swing Accidents  If any person is present near the machine when backing or swinging the upperstructure, the machine may hit or run over that person, resulting in serious injury or death. To avoid back-over and swing accidents: ...
Page 34: Keep People Clear From Working Area
SAFETY Keep People Clear from Working Area  People around the operating machine may be hit severely by the swinging front attachment or counterweight, be caught in other objects, and/or be struck by flying objects, resulting in serious injury or death. ...
Page 35: Avoid Undercutting
SAFETY Avoid Undercutting  In order to retreat from the edge of an excavation if the footing should collapse, always position the undercarriage perpendicular to the edge of the excavation with the travel motors at the rear.  If the footing starts to collapse and if retreat is not possible, do not panic.
Page 36: Never Undercut A High Bank
SAFETY Never Undercut a High Bank  The edges could collapse or a land slide could occur causing serious injury or death. SA-489 Dig with Caution  Accidental severing of underground cables or gas lines may cause an explosion and/or fire, possibly resulting in serious injury or death.
Page 37: Avoid Power Lines
SAFETY Avoid Power Lines  Serious injury or death can result if the machine or front attachments are not kept a safe distance from electric lines.  When operating near an electric line, never move any part of the machine or load to within 3 m plus twice the line insulator length of overhead wires.
Page 38: Object Handling
SAFETY Object Handling  If a lifted load should fall, any person nearby may be struck by the falling load or may be crushed underneath it, resulting in serious injury or death.  When using the machine for craning operations, be sure to comply with all local regulations.
Page 39: Protect Against Flying Debris And Falling Object
SAFETY Protect Against Flying Debris and Falling Object  During hammer operation, debris from earth, rock or metal may fly in all directions, resulting in a serious personal injury or death.  When driving the connecting pins in or out, wear goggle or safety glasses, hard hat and face shield.
Page 40: Park Machine Safely
SAFETY Park Machine Safely To avoid accidents:  Park machine on a firm, level surface.  Lower the bucket and blade to the ground.  Turn auto-idle switch OFF.  Run engine at slow idle speed without load for 5 minutes. ...
Page 41: Transport Safely
SAFETY Transport Safely  Take care the machine may turn over when loading or unloading the machine onto or off of a truck or trailer.  Observe the related regulations and rules for safe transportation.  Select an appropriate truck or trailer for the machine to be transported.
Page 42: Practice Safe Maintenance
SAFETY Practice Safe Maintenance To avoid accidents:  Understand service procedures before starting work.  Keep the work area clean and dry.  Do not spray water or steam inside cab.  Never lubricate or service the machine while it is moving. ...
Page 43: Warn Others Of Service Work
SAFETY  Sufficiently illuminate the work site. Use a maintenance work light when working under or inside the machine.  Always use a work light protected with a guard. If the light bulb is broken, spilled fuel, oil, antifreeze fluid, or window washer fluid may catch fire.
Page 44: Stay Clear Of Moving Parts
SAFETY Stay Clear of Moving Parts  Entanglement in moving parts can cause serious injury.  To prevent accidents, care should be taken to ensure that hands, feet, clothing, jewelry and hair do not become entangled when working around rotating parts. SA-026 SA-2294 Prevent Parts from Flying...
Page 45: Avoid Injury From Attachment Falling Accident
SAFETY Avoid Injury from Attachment Falling Accident  Stored attachments such as buckets, hydraulic hammers, and blades can fall and cause serious injury or death.  To avoid possible personal injury from attachment falling accident, use a platform when replacing an attachment. ...
Page 46: Replace Rubber Hoses Periodically
SAFETY Replace Rubber Hoses Periodically  Rubber hoses that contain flammable fluids under pressure may break due to aging, fatigue, and abrasion. It is very difficult to gauge the extent of deterioration due to aging, fatigue, and abrasion of rubber hoses by inspection alone. ...
Page 47: Prevent Fires
SAFETY Prevent Fires Check for Oil Leaks:  Fuel, hydraulic oil and lubricant leaks can lead to fires.  Check for oil leaks due to missing or loose clamps, kinked hoses, lines or hoses that rub against each other, damage to the oil cooler, and loose oil cooler flange bolts.
Page 48 SAFETY Clean up Flammable Materials:  Spilled fuel and oil, trash, grease, debris, accumulated coal dust, and other flammable materials may cause fires.  Prevent fires by inspecting and cleaning the machine daily, and by removing adhered oil or accumulated flammable materials immediately.
Page 49: Evacuating In Case Of Fire
SAFETY Evacuating in Case of Fire  If a fire breaks out, evacuate the machine in the following way:  Stop the engine by turning the key switch to the OFF position if there is time.  Use a fire extinguisher if there is time. ...
Page 50: Precautions For Welding And Grinding
SAFETY Precautions for Welding and Grinding  Welding may generate gas and/or small fires.  Be sure to perform welding in a well ventilated and prepared area. Store flammable materials in a safe place before starting welding.  Only qualified personnel should perform welding. Never allow an unqualified person to perform welding.
Page 51: Avoid Heating Near Pressurized Fluid Lines
SAFETY Avoid Heating Near Pressurized Fluid Lines  Flammable spray can be generated by heating near pressurized fluid lines, resulting in severe burns to yourself and bystanders.  Do not heat by welding, soldering, or using a torch near pressurized fluid lines or other flammable materials. ...
Page 52: Remove Paint Before Welding Or Heating
 Keep bystanders out of the work site during operation.  Asbestos fibers might be present in imitation parts. Use only genuine Hitachi Parts. S-36...
Page 53: Prevent Battery Explosions
SAFETY Prevent Battery Explosions  Battery gas can explode.  Keep sparks, lighted matches, and flame away from the top of battery.  Never check battery charge by placing a metal object across the posts. Use a voltmeter or hydrometer. ...
Page 54: Handle Chemical Products Safely
 Improperly disposing of waste can threaten the environment and ecology. Potentially harmful waste used with Hitachi equipment includes such items as oil, fuel, coolant, DEF/AdBlue®, brake fluid, filters, and batteries.  Use leakproof containers when draining fluids. Do not use food or beverage containers that may mislead someone into drinking from them.
Page 55: Never Ride Attachment
SAFETY Never Ride Attachment Never allow anyone to ride on attachments or the load. This is an extremely dangerous practice. Notes on Aftertreatment Device About Aftertreatment Device The aftertreatment device removes particulate matter (PM) and NOx (Nitrogen Oxide) from the exhaust gas. Follow the instructions below to prevent the aftertreatment device from being damaged.
Page 56: Precautions For Communication Terminal
SAFETY Precautions for Communication Terminal Equipment This machine is installed with a communication terminal emitting radio waves behind the operator's seat. There is a possibility that a medical device, including an implantable device such as a cardiac pacemaker, could be affected and malfunction due to the electrical waves emitted from the communication terminal.
Page 57 SAFETY  Do not attempt to disassemble, repair, modify and displace of the communication terminal, antenna and cables. Failure to do so may cause damage or fire on the machine and the communication terminal. (Before removing or installing the communication terminal, consult your authorized dealer.) ...
Page 58: Notes On Protection Of Operator's Station When The Machine Rolls Over
SAFETY Notes on Protection of Operator’s Station when the Machine Rolls Over The cab corresponds to the structure to protect the operator by absorbing impact energy when the machine rolls over (Roll- Over Protective Structure (ROPS)). However, when modifying the machine or installing a special attachment causing the machine mass to exceed the maximum operating mass described in the ROPS certification, the cab cannot fulfill its protective function, possibly causing...
Page 59: Visibility Map
VISIBILITY MAP Visibility Map for Machine Model ZX135US-6 Personal Hazard This machine complies with the essential health and safety requirements for visibility set out by Machinery Directive 2006/42/EC. This map is intended to provide information on the residual maskings (blind spots) applicable to the machine position(s) as shown, observed by a seated operator (wearing the recommended seat restraint) in the cab, using direct vision and the standard visual aids supplied with the machine.
Page 60 VISIBILITY MAP : Masking area : Operator’s eye point A : 1m Rectangular Boundary (1mRB) : Mirror visibility B : 12m Visibility Test Circle (VTC) : Camera visibility : Masking on : Standard Mirror(s) 1mRB / VTC : Standard rear view camera : Standard side view camera camera visibility...
Page 61 VISIBILITY MAP Visibility Map for Machine Model ZX225USLC-6 Personal Hazard This machine complies with the essential health and safety requirements for visibility set out by Machinery Directive 2006/42/EC. This map is intended to provide information on the residual maskings (blind spots) applicable to the machine position(s) as shown, observed by a seated operator (wearing the recommended seat restraint) in the cab, using direct vision and the standard visual aids supplied with the machine.
Page 62 VISIBILITY MAP : Masking area : Operator’s eye point A : 1m Rectangular Boundary (1mRB) : Mirror visibility B : 12m Visibility Test Circle (VTC) : Camera visibility : Masking on : Standard Mirror(s) 1mRB / VTC : Standard rear view camera : Standard side view camera camera visibility...
Page 63 VISIBILITY MAP Visibility Map for Machine Model ZX345USLC-6 Personal Hazard This machine complies with the essential health and safety requirements for visibility set out by Machinery Directive 2006/42/EC. This map is intended to provide information on the residual maskings (blind spots) applicable to the machine position(s) as shown, observed by a seated operator (wearing the recommended seat restraint) in the cab, using direct vision and the standard visual aids supplied with the machine.
Page 64 VISIBILITY MAP : Masking area : Operator’s eye point A : 1m Rectangular Boundary (1mRB) : Mirror visibility B : 12m Visibility Test Circle (VTC) : Camera visibility : Masking on : Standard Mirror(s) 1mRB / VTC : Standard rear view camera : Standard side view camera camera visibility...
Page 65: Safety Signs
Use the part No. indicated under the right corner of each safety sign illustration when placing an order of it to the Hitachi dealer. ZX135US-6, 225USLC-6 (ZX135US-6)
Page 66 SAFETY SIGNS ZX345USLC-6 SS-4317 S-50...
Page 67 SAFETY SIGNS WARNING! Prior to operation, maintenance, disassembling, and transportation of the machine, be sure to read and understand the Operator’s Manual. SS4420332-2 If the parked machine is unexpectedly moved, serious injury or death due to crushing may result. Be sure to lower the front attachment to the ground, lock the control levers, and remove the engine key before leaving the machine unattended.
Page 68 SAFETY SIGNS When moving the seat height/tilt lever downward, press the lever grip with a palm from the top side. Do not grasp the lever grip to operate the lever, possibly resulting in pinch of your fingers into the seat stand. SS4371371-3 If the machine should overturn, the operator may become injured and/or throw from the cab and/or crushed by the...
Page 69 SAFETY SIGNS Sign indicates a hazard of a flying plug from track adjuster that could cause injury. Read manual before adjusting track for safe and proper handling. SS3086091-4 Sign indicates a burn hazard from compressed air and spurting hot oil if the oil inlet is uncapped during or right after operation.
Page 70 SAFETY SIGNS Sign indicates a hazard of falling off the fender or hood. Never stand close to the edge. SS3092125-2 Sign indicates a crush hazard by rotation of upper structure of the machine. Keep away from swinging area of machine. SS3086090-2 Be careful to avoid skin contact with high temperature part during operation or immediately after stopping the...
Page 71 SAFETY SIGNS Sign indicates a hazard of rotating parts, such as belt. Turn off before inspection and maintenance. SS3092127-1 Sign indicates a hazard of rotating parts, such as fan. Turn off before inspection and maintenance. SSYA00008776-2 Sign indicates a burn hazard from spurting hot water or oil if radiator or hydraulic oil tank is uncapped while hot.
Page 72 SAFETY SIGNS Sign indicates an electrical hazard from handling the cable. Read manual for safe and proper handling. SS4459714-1 Sign indicates an explosion hazard. Keep fire and open flames away from this area. SS4460067-2 Skin contact with electrolyte will cause burns. Splashed electrolyte into eyes will cause blindness.
Page 73 SAFETY SIGNS To those persons fixed with any medical device. Including implantable device such as a cardiac pacemaker. Please read the instruction manual carefully and follow the instructions before using this machine. SSYA00040416 WARNING IT CONTAINS NITROGEN UNDER HIGH PRESSURE. DON’T ALLOW FIRE OR HEAT NEAR IT.
Page 74 SAFETY SIGNS MEMO ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................S-58...
Page 75: Name Of Components
NAME OF COMPONENTS Name of Components 1- Bucket 2- Bucket Cylinder 3- Arm 4- Arm Cylinder 5- Boom Cylinder 6- Boom 7- Fuel Tank 8- Hydraulic Oil Tank 9- Aftertreatment Device 10- Engine 11- Expansion Tank 12- Counterweight 13- Battery Disconnect Switch 14- DEF/AdBlue®...
Page 76: Getting On And Off The Machine
GETTING ON AND OFF THE MACHINE Getting ON and OFF the Machine Footholds (1) and handrails (2) are provided around the machine for safe entry and exit to the cab. They also allow for safe inspection and maintenance. Never jump on or off the machine, it is very dangerous. WARNING: ...
Page 77: Operator's Station
Standardization (ISO). If improper liquid (diesel oil, kerosene or gasoline) is refilled in the DEF/AdBlue® tank, fire or system failure may result.  Use only genuine Hitachi engine oil. Using engine oil other than Hitachi genuine oil may result in malfunction of the aftertreatment device.
Page 78 OPERATOR'S STATION  Do not modify the machine without authorization. Never attempt to modify the air inlet and exhaust parts such as the air duct, aftertreatment device and the exhaust piping. Also never attempt to disassemble the aftertreatment device. Avoid giving shocks on the aftertreatment device by striking elements with other objects or dropping the device.
Page 79  If approximately 48 hours have passed without regeneration being carried out, the engine trouble alarm will be displayed on the monitor (Refer to the page 1-27). Consult your authorized Hitachi dealer.  Both auto and manual regenerations restore aftertreatment device function. It is not a malfunction.
Page 80: Cab Features
OPERATOR'S STATION Cab Features ZX135US-6, 225US-6 class 1- Left Control Lever/Horn Switch 2- Left Travel Pedal 3- Left Travel Lever 4- Right Travel Lever 5- Right Travel Pedal 6- Right Control Lever/Power Boost Switch 7- Multi Function Monitor Panel 8- Switch Panel 9- Key Switch 10- Regeneration Switch 11- Operator's Seat...
Page 81 OPERATOR'S STATION Cab Features ZX345US-6 class 1- Left Control Lever/Horn Switch 2- Left Travel Pedal 3- Left Travel Lever 4- Right Travel Lever 5- Right Travel Pedal 6- Right Control Lever/Power Boost Switch 7- Multi Function Monitor Panel 8- Switch Panel 9- Key Switch 10- Regeneration Switch 11- Operator's Seat...
Page 82: Multi Function Monitor
OPERATOR'S STATION Multi Function Monitor Feature The multi function monitor displays various meters, indicators, radio and air conditioner, numeric keypad lock function, rearview camera image, work mode selection and maintenance screen. Screen Configuration The multi function monitor consists of the following screens.
Page 83: Default Setting
OPERATOR'S STATION Default Setting Function Item Default Auto Shut-Down ON/OFF of Auto Shut-down Setting Time 1 min Aftertreatment Device Regeneration Inhibited Regeneration Inhibited NOTE: Typical functions are shown in the table. Check the initial values of other functions on each monitor screen.
Page 84 OPERATOR'S STATION Basic Screen 1- Work Mode Display 2- Aftertreatment Device Display 3- Power Mode Display 4- Hour Meter, Clock 5- Auxiliary 6- Auxiliary 7- Preheat Display 8- Seat Belt Display 9- Fuel Gauge 10- Sub Meter Display 11- Radio Display 12- Air Conditioner Display 13- Coolant Temperature Gauge 14- Auxiliary...
Page 85: Basic Screen
OPERATOR'S STATION How to Use Screens Displaying Basic Screen IMPORTANT: Start the engine after the basic screen is displayed. When the key switch is turned to the ACC or ON position, the starting screen displays for about 2 seconds. When the key switch is kept in ACC position, only hour meter, clock and radio will be displayed.
Page 86 OPERATOR'S STATION  Display of Meters Work Mode Items to be displayed 4- Hour Meter, Clock 9- Fuel Gauge 13- Coolant Temperature Gauge 19- DEF/AdBlue® Gauge  Work Mode Display The attachments being used are displayed. Digging Mode MDC1-01-001 Attachment Mode Breaker Pulverizer Crusher...
Page 87 OPERATOR'S STATION  Aftertreatment Device Display (2) Displays condition of the aftertreatment device.  Power Mode Display (3) Displays the power mode selected from the switch panel.  Preheat Display (7) While the current is being supplied to the glow plug, indicator (7) is displayed.
Page 88: Hour Meter
OPERATOR'S STATION  Auto-Idle Display (18) When the auto-idle is selected from the switch panel, auto- idle display (18) displays. When the key switch is turned ON while the auto-idle switch is also ON, auto-idle display (18) blinks for 10 seconds.
Page 89: Def/Adblue® Gauge
OPERATOR'S STATION DEF/AdBlue® Gauge The remaining DEF/AdBlue® amount is indicated on the segment display. When DEF/AdBlue® level becomes low, the last segment turns yellow. If the segment display turns yellow, immediately refill DEF/AdBlue®. IMPORTANT: Display of the DEF/AdBlue® gauge changes depending on the DEF/AdBlue®...
Page 90: Coolant Temperature Gauge
OPERATOR'S STATION Coolant Temperature Gauge The engine coolant temperature is indicated with a needle. Normally the needle is around the center of the scale during operation. M1U1-01-047 Operating Status Icon Display Displays icons indicating the current status of each of following items: Attachment (1) and aftertreatment device display (2) selected from the work mode selection screen;...
Page 91: Security Functions (Optional)
OPERATOR'S STATION Security Functions (Optional) Input Password IMPORTANT:  When required to activate the numeric keypad function, consult your authorized dealer.  If the password is forgotten, the machine must be modified. Be extremely careful not to forget the password. MDAA-01-003EN Starting Screen 1.
Page 92: Extending Password Duration Time
OPERATOR'S STATION Extending Password Duration Time IMPORTANT: This operation is applicable only to machines that require a password. By using the password duration screen, password duration time can be set. When restarting the machine, a password need not be input within the specified timeframe. 1.
Page 93: Alarm Occurrence Screen
OPERATOR'S STATION Alarm Occurrence Screen In case any abnormality occurs, alarm marks (1) are displayed on the basic screen. If six or more alarms are generated, alarm marks (1) can be scrolled by rotating switch (2). Indicator MDC1-01-316 MDCD-01-026 1-19...
Page 94 OPERATOR'S STATION Follow the procedure below to display detailed information for an alarm. Push selector knob (1) on basic screen (2) to display main menu (3). Rotate selector knob (1) to select alarm list (4), and push selector knob (1). Rotate selector knob (1) to select a required alarm from alarm list (5), and push selector knob (1).
Page 95: Remedy
Content of Alarm DEF/AdBlue® Alarm* DEF/AdBlue® Level Is Low Or Urea SCR System Is Abnormal. Refill DEF/AdBlue® If Level Is Low. Consult Your Authorized Hitachi Dealer For System Malfunction. Engine Output Restriction Engine Output Is Restricted. Aftertreatment Device Aftertreatment Device Regeneration Is Needed. Set Pilot Control Shut- Regeneration Request off Lever To The LOCK Position.
Page 96 Exhaust Temperature Is Abnormally High. Stop Operation. Check The Exhaust Piping. Aftertreatment Device Aftertreatment Device Regeneration System Is Abnormal. Regeneration System Consult Your Authorized Hitachi Dealer. Abnormal Alternator Alarm Electrical System Is Abnormal. Check Alternator And Battery Systems. Fuel Level Alarm Fuel Level Is Low.
Page 97 OPERATOR'S STATION Display Alarm Name Content of Alarm Fuel Temperature Alarm Fuel Temperature Is Abnormally High. Stop Operation And Check For Any Abnormality Such As Clogged Fuel Cooler. Hydraulic Oil Filter Restriction Hydraulic Oil Filter Is Clogged. Replace Hydraulic Oil Filter Element. Alarm (Optional) Air Cleaner Restriction Alarm Air Cleaner Is Clogged.
Page 98: Urea Scr System Remedy
OPERATOR'S STATION Urea SCR System Remedy Display Alarm Name Content of Alarm DEF/AdBlue® Level Alarm* DEF/AdBlue® Level Is Low. Refill DEF/AdBlue®. DEF/AdBlue® Level Alarm* DEF/AdBlue® Is Insufficient. Refill DEF/AdBlue®. DEF Tank Empty. Engine Output Is Restricted. DEF/AdBlue® Level Alarm* DEF/AdBlue®Tank Is Empty. Refill DEF/AdBlue®.
Page 99 OPERATOR'S STATION  Fuel Sensor Error Display Coolant Temperature Fuel Sensor Error Display If the fuel sensor is faulty, the color of the fuel mark changes Sensor Error Display and the needle disappears. If the harness between the fuel sensor and the controller unit is broken, the needle disappears.
Page 100: Aftertreatment Device
OPERATOR'S STATION Aftertreatment Device Aftertreatment Device Condition Display Aftertreatment Device Display (1) displays the condition of the aftertreatment device. This mark indicates that the exhaust temperature is high during the aftertreatment device regeneration. It is lit while auto or manual regeneration is in process.
Page 101: Aftertreatment Device Manual Regeneration Request
OPERATOR'S STATION Aftertreatment Device Manual Regeneration Request The aftertreatment device needs regeneration. Usually, regeneration is performed automatically. However, manual regeneration is required depending on the conditions. The marks described below may be indicated on monitor (1). This mark indicates that the aftertreatment device manual regeneration is required.
Page 102: Manual Regeneration Procedure
OPERATOR'S STATION Manual Regeneration Procedure When manual regeneration is needed, screen (1) as shown in the right will be displayed. When this screen (1) is displayed, you need to perform manual regeneration. Before starting manual regeneration, be sure to check the following.
Page 103: Main Menu
OPERATOR'S STATION Main Menu Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). Main Menu screen (3) contains the items as shown in the figure right. Engine Output Restriction Is Temporary Released, Urea SCR System Troubleshooting and Alarm List will be displayed only when the engine output is limited, Urea SCR system is malfunctioning or an alarm is generated, respectively.
Page 104: Engine Output Restriction Suspend
OPERATOR'S STATION Engine Output Restriction Suspend When a lack of DEF/AdBlue® or Urea SCR system malfunction occurs, alarm mark (1) will be displayed on the basic screen and engine output / speed will be limited. IMPORTANT:  This function can be performed only one time at one engine output limit.
Page 105 OPERATOR'S STATION 3. Push selector knob (2) to display Engine Output Restriction Suspend screen (5). MDCD-01-026 4. Rotate selector knob (2) to highlight (6), and push selector knob (2) to display Engine Output Restriction Suspend screen (8). MDC1-01-522EN 5. Rotate selector knob (2) to highlight (7), then screen (9) is displayed and the engine output is temporarily released.
Page 106: Urea Scr System Troubleshooting
OPERATOR'S STATION Urea SCR System Troubleshooting In case any abnormality occurs, alarm marks (1) are displayed on the Basic Screen. Follow the procedure below to display detailed information for an alarm. 1. Push selector knob (2) on the Basic Screen to display Main Menu screen (3).
Page 107 OPERATOR'S STATION 4. When the troubleshooting is finished, fault code (7) is displayed. Consult your authorized dealer to repair the system. NOTE:  The main menu displays information about the Urea SCR System Troubleshooting is only displayed when the Urea SCR system alarm is generated.
Page 108: Air Conditioner
OPERATOR'S STATION Air Conditioner Most air conditioner functions are operated by using switches (3) and (4), however air vent selection and turning A/C ON and OFF are performed from the air conditioner setting screen in the menu. (Refer to the page 1-115) Circulation Air Mode 1.
Page 109: Radio
OPERATOR'S STATION Radio Most radio functions are operated by using switches (3) and (4), however memory channel setting, seek function, TONE adjustment, and AUTO PRESET are done at the radio screen in the main menu. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (5).
Page 110: Work Mode
OPERATOR'S STATION Work Mode IMPORTANT: Before changing the work mode, stop the machine, lower the working device such as a bucket on the ground and pull the pilot control shut-off lever to the LOCK position. Front attachment is selected in Work Mode screen (5) under the Work Mode menu in the main menu.
Page 111: Mail (Optional)
IMPORTANT: This function is available only to a machine equipped with a communication terminal. When using the mail function, consult your nearest Hitachi dealer. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3).
Page 112 OPERATOR'S STATION 6. While mail information is sent to the communication terminal, the message "Wait." is displayed on the screen. MDAA-01-111EN 7. When the communication terminal completes receiving mail information, the message "Request Is Accepted." is displayed on the screen. Push the return to previous screen switch to return to the Mail screen.
Page 113: Setting Menu
OPERATOR'S STATION Setting Menu Setting menu consists of date and time setting, attachment adjustment, attachment name, auto shut-down setting, change password, selecting sub meter, brightness adjustment of rear view camera monitor and screen. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3).
Page 114: Date And Time
OPERATOR'S STATION Date and Time Time, date and display mode can be set on this screen. Year- month-day format and 24h/12h display mode are selected in the display setting. Time Adjustment 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3).
Page 115 OPERATOR'S STATION 5. Push selector knob (2) to display Date and Time screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Time Setting (8). 7. Push selector knob (2) to display Time Setting screen (9). MDAA-01-117EN 8. Rotate selector knob (2) to highlight Hour or Minute (10) and push selector knob (2).
Page 116: Date Adjustment
OPERATOR'S STATION Date Adjustment 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Setting Menu (4). 3. Push selector knob (2) to display Setting Menu screen (5).
Page 117 OPERATOR'S STATION 5. Push selector knob (2) to display Date and Time screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Date Setting (8). 7. Push selector knob (2) to display Date Setting screen (9). MDAA-01-122EN 8. Rotate selector knob (2) to highlight Year, Month or Day (10) and push selector knob (2).
Page 118: Display Mode Setting
OPERATOR'S STATION Display Mode Setting 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Setting Menu (4). 3. Push selector knob (2) to display Setting Menu screen (5).
Page 119 OPERATOR'S STATION 5. Push selector knob (2) to display Date and Time screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Display Form (8). MDAA-01-228EN 7. Push selector knob (2) to display Display Form screen (9). 8. Rotate selector knob (2) to highlight Time or Date (10) and push selector knob (2).
Page 120: Attachment Adjustment
OPERATOR'S STATION Attachment Adjustment On the Attachment Adjustment screen, the supply flow rate to an attachment, the operational priority for combined operation of an attachment, and arm roll-in/arm roll-out can be adjusted. Attachment adjustment can be done when the work mode is set to an attachment other than bucket.
Page 121 OPERATOR'S STATION 5. Push selector knob (2) to display Attachment Adjust screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Pump Flow Rate (8). MDAA-01-129EN 7. Push selector knob (2) to display Pump Flow Rate screen (9). 8. Rotate selector knob (2) clockwise or counterclockwise to adjust the pump flow rate.
Page 122: Priority (Arm Roll-Out)
OPERATOR'S STATION Priority (arm roll-out) Select an attachment other than the bucket on the work mode screen. (Refer to the page 1-36) 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Setting Menu (4). 3.
Page 123 OPERATOR'S STATION 5. Push selector knob (2) to display Attachment Adjust screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Priority (Arm Roll- Out) (8). MDAA-01-235EN 7. Push selector knob (2) to display Priority (Arm Roll-Out) screen (9). 8. Rotate selector knob (2) clockwise to increase flow rate to the attachment.
Page 124: Priority (Arm Roll-In) (Except Zx135Us-6)
OPERATOR'S STATION Priority (arm roll-in) (Except ZX135US-6) Select an attachment other than the bucket on the work mode screen. (Refer to the page 1-36) 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2.
Page 125 OPERATOR'S STATION 5. Push selector knob (2) to display Attachment Adjust screen (7). 6. Rotate selector knob (2) to highlight Priority (Arm Roll-In) MDCD-01-026 (8). 7. Push selector knob (2) to display Priority (Arm Roll-In) screen (9). MDAA-01-236EN 8. Rotate selector knob (2) clockwise to increase flow rate to the attachment.
Page 126: Attachment Name Input
OPERATOR'S STATION Attachment Name Input Attachment name can be changed on this screen. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Setting Menu (4). 3. Push selector knob (2) to display Setting Menu screen (5).
Page 127 OPERATOR'S STATION 5. Push selector knob (2) to display Attachment Name Input screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Desired Attachment Name (8). MDAA-01-134EN 7. Push selector knob (2) to display Name Change screen (9). 8. Rotate selector knob (2) right or left to highlight a character, and push selector knob (2).
Page 128: Auto Shut-Down
OPERATOR'S STATION Auto Shut-Down WARNING: This function automatically stops the engine. Pay extra attention to the work and work environment when using this function. The auto shut-down function can be set in this screen. Set the auto shut-down time and enable (ON) the function beforehand.
Page 129: Auto Shut-Down: Setting Time
OPERATOR'S STATION 5. Push selector knob (2) to display Auto Shut-Down screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight ON (Enable) (8). 7. Push selector knob (2) to set the auto shut-down function ON. Push selector knob (2) again to turn the auto shut-down function OFF.
Page 130: Aftertreatment Device Regeneration Inhibited
OPERATOR'S STATION Aftertreatment Device Regeneration Inhibited IMPORTANT: The aftertreatment device regeneration can be inhibited at this screen to prevent auto regeneration while operating the machine in a dusty area or indoors. Setting Procedure 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3).
Page 131 OPERATOR'S STATION 3. Push selector knob (2) to display Setting Menu screen (5). 4. Rotate switch (2) to highlight Aftertreatment Device Regeneration inhibited (6). 5. Push selector knob (2) to display aftertreatment device regeneration inhibited screen (7). 6. Rotate selector knob (2) to highlight (8), and push selector knob (2) to display Aftertreatment Device Regeneration Inhibited screen (9).
Page 132: Password Change (Optional)
OPERATOR'S STATION Password Change (Optional) 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). MDC1-01-001 MDCD-01-026 2. Rotate selector knob (2) to highlight Setting Menu (4). MDAA-01-114EN 1-58...
Page 133 OPERATOR'S STATION 3. Push selector knob (2) to display Setting Menu screen (5). 4. Rotate selector knob (2) to highlight Password Change (6). MDAA-01-156EN 5. Push selector knob (2) to display Password Change screen (7). MDCD-01-026 MDAA-01-157EN 6. Input current password from the numeric keypad. Current Password MDAA-01-158EN 1-59...
Page 134 OPERATOR'S STATION 7. Input the new password and push selector knob (2). 3 to 8 digits can be input for password. MDAA-01-159EN New Password MDAA-01-160EN 1-60...
Page 135 OPERATOR'S STATION 8. Input the new password again to confirm it and push selector knob (2). MDAA-01-161EN MDAA-01-162EN MDCD-01-026 9. The password has been changed. MDAA-01-163EN 1-61...
Page 136: Sub Meter
OPERATOR'S STATION Sub Meter A sub meter selection menu that can be added to the fuel meter is selected on this screen. OFF, Fuel Consumption Indicator and Breaker Hour Meter are provided. The breaker Sub Meter hour meter indicates the breaker operation time. 1.
Page 137 OPERATOR'S STATION 5. Push selector knob (2) to display Sub Meter Selection screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Desired Sub Meter (8). (Selecting OFF will not display a sub meter.) 7. Push selector knob (2) to enable the changes. NOTE: ...
Page 138: Brightness Adjustment
OPERATOR'S STATION Brightness Adjustment 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). MDC1-01-001 MDCD-01-026 2. Rotate selector knob (2) to highlight Setting Menu (4). MDAA-01-114EN 3. Push selector knob (2) to display Setting Menu screen (5).
Page 139 OPERATOR'S STATION 5. Push selector knob (2) to display Brightness Adjustment screen (7). MDCD-01-026 6. Rotate selector knob (2) clockwise to make the screen brighter, counterclockwise to make the screen darker. MDAA-01-172EN NOTE:  When the light is turned ON, the monitor screen changes to night mode and mark (8) is displayed.
Page 140: Language Settings
OPERATOR'S STATION Language Settings 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). MDC1-01-001 MDCD-01-026 2. Rotate selector knob (2) to highlight Setting Menu (4). MDAA-01-114EN 3. Push selector knob (2) to display Setting Menu screen (5).
Page 141 OPERATOR'S STATION 5. Push selector knob (2) to display screen (7). 6. Rotate selector knob (2) to highlight the desired language. Push selector knob (2) to make the change. MDCD-01-026 NOTE: When a display is selected, the mark "" is displayed in green.
Page 142: Lists Of Display Language
OPERATOR'S STATION Lists of Display Language Language Screen Display Language Screen Display Japanese Indonesian English Thai Spanish Vietnamese Italian Myanmarese French Arabic German Persian Dutch Turkish Russian Danish Portuguese Estonian Finnish Polish Greek Icelandic Swedish Croatian Norwegian Slovenian Chinese (Simplified) Romanian Chinese (Traditional) Bulgarian...
Page 143: Unit Selection
OPERATOR'S STATION Unit Selection Unit system displayed on the monitor can be selected in this screen. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). MDC1-01-001 MDCD-01-026 2. Rotate selector knob (2) to highlight Setting Menu (4). MDAA-01-114EN 3.
Page 144 OPERATOR'S STATION 5. Push selector knob (2) to display Unit Selection screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight the Desired Unit System. Push selector knob (2) to set the unit (Metric or US system). MDAA-01-182EN 7. Before changing °C and °F, turn the blower of the air conditioner ON.
Page 145: Display Item Selection (Rear View Camera Off)
OPERATOR'S STATION Display Item Selection (Rear View Camera OFF) The display under the meters can be set to OFF (disable), Logo or Operational information. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). MDC1-01-001 MDCD-01-026 2.
Page 146 OPERATOR'S STATION 5. Push selector knob (2) to display Display Item Selection screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight the Desired Display. Push selector knob (2) to set the image. (Selecting OFF sets non-display.) NOTE: When a display is selected, the mark "" is displayed in green.
Page 147: Main Menu Sequence Change
OPERATOR'S STATION Main Menu Sequence Change Menu sequence of Air Conditioner, Radio and Work Mode can be changed in this screen. Frequently used menu can be located on top of the screen. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3).
Page 148 OPERATOR'S STATION 3. Push selector knob (2) to display Setting Menu screen (5). 4. Rotate selector knob (2) to highlight Main Menu Sequence Change (6). MDAA-01-186EN 5. Push selector knob (2) to display Main Menu Sequence Change screen (7). MDCD-01-026 6.
Page 149: Information Menu
OPERATOR'S STATION Information Menu The information menu includes Operation, Maintenance, Troubleshooting and Monitoring. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Information Menu (4). 3. Push selector knob (2) to display Information Menu screen (5).
Page 150: Operation
OPERATOR'S STATION Operation The Operation screen displays Fuel Consumption, Breaker Operation, Attachment Operation, Travel Operation, and Actual Operation menus. The Fuel Consumption screen displays fuel consumption, operating hours, and fuel consumption rate, for the period since the monitoring unit was last reset. The Breaker Operation screen displays breaker operating hours, machine operating hours and operating rate, for the period since the monitoring unit was last reset.
Page 151 OPERATOR'S STATION 5. Push selector knob (2) to display Operation screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Fuel Consumption (8). 7. Push selector knob (2) to display Fuel Consumption screen (9). MDAA-01-193EN The Machine Operation Hours, Fuel consumption, and Average Fuel Consumption rate can be checked on this screen.
Page 152: Breaker Operation
OPERATOR'S STATION Breaker Operation 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Information Menu (4). 3. Push selector knob (2) to display Information Menu screen (5). 4.
Page 153 OPERATOR'S STATION 5. Push selector knob (2) to display Operation screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Breaker Operation (8). 7. Push selector knob (2) to display Breaker Operation screen (9). MDAA-01-196EN Operating Time, Machine Operation Hours and Operation Ratio can be checked in this screen.
Page 154: Attachment Operation
OPERATOR'S STATION Attachment Operation 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Information Menu (4). 3. Push selector knob (2) to display Information Menu screen (5). 4.
Page 155 OPERATOR'S STATION 5. Push selector knob (2) to display Operation screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Attachment Operation (8). MDAA-01-199EN 7. Push selector knob (2) to display Attachment Operation screen (9). The attachment Operating Time can be checked in this screen.
Page 156: Travel Operation
OPERATOR'S STATION Travel Operation 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Information Menu (4). 3. Push selector knob (2) to display Information Menu screen (5). 4.
Page 157 OPERATOR'S STATION 5. Push selector knob (2) to display Operation screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Travel Operation (8). 7. Push selector knob (2) to display Travel Operation screen (9). MDAA-01-202EN Total Travel Operating Time can be checked in this screen. Push selector knob (2) to return to the previous screen.
Page 158: Actual Operation
OPERATOR'S STATION Actual operation 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Information Menu (4). 3. Push selector knob (2) to display Information Menu screen (5). 4.
Page 159 OPERATOR'S STATION 5. Push selector knob (2) to display Operation screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Actual Operation (8). 7. Push selector knob (2) to display Actual Operation screen (9). MDAA-01-205EN The actual Operating Time can be checked in this screen. Push selector knob (2) to return to the previous screen.
Page 160: Maintenance
OPERATOR'S STATION Maintenance The maintenance screen includes maintenance notice, remaining hours until the next maintenance, and maintenance intervals. Maintenance Items  Engine Oil  Engine Oil Filter  Hydraulic Oil  Hydraulic Oil Pilot Filter  Hydraulic Oil Full-Flow Filter ...
Page 161 OPERATOR'S STATION 5. Push selector knob (2) to display Maintenance screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight Maintenance Notice (8). 7. Push selector knob (2) to turn the Maintenance Notice ON. Push selector knob (2) again to turn the Maintenance Notice OFF.
Page 162: Remaining Time And Maintenance Interval
OPERATOR'S STATION Remaining Time and Maintenance Interval 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Information Menu (4). 3. Push selector knob (2) to display Information Menu screen (5).
Page 163 OPERATOR'S STATION 5. Push selector knob (2) to display Maintenance screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight a Maintenance Item to be checked (8). (In the example on the right, Engine Oil is selected.) 7. Push selector knob (2) to display the time remaining for the selected maintenance item.
Page 164: Monitoring
OPERATOR'S STATION Monitoring The engine speed can be checked. 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Information Menu (4). 3. Push selector knob (2) to display Information Menu screen (5).
Page 165 OPERATOR'S STATION 5. Push selector knob (2) to display Monitoring screen (7). MDCD-01-026 MDC1-01-221EN 1-91...
Page 166: Switch Panel
OPERATOR'S STATION Switch Panel 1- Return to Previous Screen Switch 2- Return to Basic Screen Switch 3- Selector Knob 4- Temperature Control Switch/Mode Switch 5- AUTO/OFF Switch/Fan Switch 6- AM/FM Selector/Tuning Switch 7- Power Switch/Volume Control Knob 8- Engine Control Dial 9- Auto-Idle Switch 10- Travel Mode Switch 11- Power Mode Switch...
Page 167: Return To Previous Screen Switch (Monitor)
OPERATOR'S STATION Return to Previous Screen Switch (Monitor) Push this switch to return to the previous screen. MDAA-01-010 Return to Basic Screen Switch (Monitor) Allows any screen to return to the basic screen. MDAA-01-011 Selector Knob (Monitor) Push : Push this switch while the basic screen is displayed, the menu screen opens.
Page 168: Am/Fm Selector/Tuning Switch (Radio)
OPERATOR'S STATION AM/FM Selector/Tuning Switch (Radio) Push : AM/FM is selected. Rotate : Adjusts radio frequency. MDAA-01-014 Power Switch/Volume Control Knob (Radio) Push : Turns power ON/OFF. Rotate : Adjusts the volume. MDAA-01-016 Engine Control Dial Fast Idle Use engine control dial (1) to adjust engine speed. The fully clockwise position : Fast Idle Counterclockwise : Slow Idle...
Page 169: Auto-Idle Switch
OPERATOR'S STATION Auto-Idle Switch Auto-idle switch (2) sets the engine speed control mode to either Auto-Idle ON or OFF.  Auto-Idle Speed When auto-idle switch (2) is turned to ON position, the engine speed decreases to the idle after approximately 4 seconds at the state in which the control lever is turned to MDAA-01-017 neutral.
Page 170: Power Mode Switch
OPERATOR'S STATION Power Mode Switch The three engine speed modes, ECO, PWR or H/P mode are selected by operating the power mode switch. MDAA-01-274  ECO (Economy) Mode Operate the machine in this mode when performing normal work. ECO is displayed on Power Mode Display (1). ...
Page 171: Wiper/Washer Switch
OPERATOR'S STATION Wiper/Washer Switch The wiper and the window washer are operated using the Middle Fast wiper/washer switch. Slow  Wiper Turn the wiper/washer switch to the specified position to operate the wiper. The wiper stops and is retracted. INT Position The wiper operates intermittently at the interval selected by the switch position MBFM-01-005...
Page 172: Usb Power Supply Port
OPERATOR'S STATION USB Power Supply Port Using the USB Power Supply Port The USB power supply Port (2) can be used to power or charge mobile devices or electrical equipment. IMPORTANT:  The USB power supply Port (2) of this vehicle supplies DC 5V.
Page 173: Numeric Keypad
OPERATOR'S STATION 1. Open the cap to the USB power supply Port (2). 2. Insert the USB terminal of your device. 3. Turn key switch (1) to the ACC or ON position. This allows the USB power supply to be used. 4.
Page 174: Switch Panel (For Optional Equipments)
OPERATOR'S STATION Switch Panel (for Optional Equipments) Optional Switch Armrest Location NOTE: The optional switch locations differ, depending on the kinds of optional devices that the machine is equipped with. Before using the switches, confirm which types of optional devices the machine is equipped with. Raise the armrest when operating the optional switch.
Page 175: Travel Alarm Deactivation Switch (Optional)
OPERATOR'S STATION Travel Alarm Deactivation Switch (Optional) The travel alarm buzzer sounds during travel operation. When pushing the mark of travel alarm deactivation switch (1), the travel alarm buzzer function is deactivated. M1U1-01-035 Rear Light Switch When rear light switch (2) is turned ON, the rear light at the rear of the cab roof comes ON.
Page 176: Seat Heater Switch (Optional)
OPERATOR'S STATION Seat Heater Switch (Optional) When seat heater switch (5) is turned ON, the seat and/ or backrest are heated to warm them up. When the temperature of the seat and/or backrest reaches its specified temperature, heating turns off automatically. WARNING: M1U1-01-011 ...
Page 177: Electrical Control Main Switch
OPERATOR'S STATION Electrical Control Main Switch By placing the pilot control shut-off lever in the lock release position, and pressing electrical control main switch (8), indicator (9) lights, allowing use of the electrical control (attachment switch). Pressing electrical control main switch (8) one more time, turns indicator (9) to the OFF position.
Page 178: Key Switch
OPERATOR'S STATION Key Switch 1- OFF (Engine Off ) 2- ACC (Horn, Radio etc.) 3- ON (Engine ON) 4- START (Engine Start) MDC1-01-502 Power Boost Switch Power boost switch (5) is provided on the top of the right control lever. While pressing power boost switch (5), the maximum digging power is boosted within approximately 8 seconds to increase work capacity.
Page 179: Electrical Control Main Switch
OPERATOR'S STATION Electrical Control Main Switch  Attachment Switch (Assist Operation) (Main Operation) This switch (1) is mainly used for optional devices and attachments with a rotary or a tilt function. By placing the pilot control shut-off lever in the lock release position, and pressing electrical control main switch (1), indicator (2) will light.
Page 180: Aux Function Lever 1
CAUTION: MDAA-01-337 MCGB-01-030  These switches are provided for operating attachments of this machine. Hitachi does not bear responsibility on any human injury, malfunction and/or physical loss or damage incurred by unauthorized application or use of unauthorized attachments, optional parts or modified switch, which will void Hitachi Warranty Policy.
Page 181: Cigar Lighter
4. After use, reinsert the cigar lighter to its original position in the panel. CAUTION: Do not power anything other than a genuine Hitachi Construction Machinery electrical device from the cigar lighter port. MDCN-01-006 Cigar Lighter 1-107...
Page 182: Cab Light Switch
OPERATOR'S STATION Cab Light Switch Push switch (1) on the cab light to turn the cab light ON. : The cab light comes and stays ON. (The light does not turn ON while the key OFF.) : The cab light goes OFF. Door : The cab light turns ON as the cab door is opened.
Page 183: Pilot Control Shut-Off Lever
OPERATOR'S STATION Pilot Control Shut-Off Lever Pilot control shut-off lever (1) functions to prevent the machine from being mistakenly operated when the operator accidentally touches the control lever or pedals when getting on or off the machine. WARNING:  Always pull pilot control shut-off lever (1) into the full LOCK position.
Page 184: Control Lever Auto-Lock
OPERATOR'S STATION Control Lever Auto-Lock This function keeps the machine from operating to prevent it from moving contrary to the intention of the operator, in cases like inadvertently unlocking pilot control shut-off lever (1) when a control lever is engaged, such as by snagging a piece of clothing.
Page 185: Engine Stop Switch
OPERATOR'S STATION Engine Stop Switch In case the engine does not stop even if the key switch is turned OFF due to failure of the machine, move switch (2) located at the front-left side of the seat stand downward to stop the engine.
Page 186: Fuse Box
OPERATOR'S STATION Fuse Box 10- CONTROLLER 20- OPT.3 (ALT) 9- BACKUP 19- HORN 10 A 10 A 8- ECU 18- IDLE STOP 30 A 7- START 17- POWER ON MDCN-01-010 6- OPT.2 (ALT) 16- GLOW RELAY 20 A 5- OPT.1 (ALT) 15- AUX 10 A 4- SOLENOID...
Page 187: Auto Air Conditioner
OPERATOR'S STATION Auto Air Conditioner Features:  Full Auto-Temperature Control: Automatically controls the air temperature in the cab to maintain the temperature set by the temperature control switch regardless of outside air temperature and intensity of the sun.  Max. Cooling and Heating: Maximum cooling or heating can be obtained by rotating the temperature control switch clockwise (32 °C) or counterclockwise (18 °C) respectively.
Page 188: Name Of Components
OPERATOR'S STATION Name of Components 1- Front Vent 2- Foot Vent 3- Defroster Vent 4- Rear Vent 5- Temperature Control Switch/Mode Switch 6- AUTO/OFF Switch/Fan Switch NOTE: Air flow direction can be adjusted by moving the louvers on all air vents except for foot vent (2). The louvers MDCN-01-008 on front vents (1) and defroster vent (3) can be completely opened and closed by hand.
Page 189: Controller Part Name And Function
OPERATOR'S STATION Controller Part Name and Function  Mode Switch (5) Selects the air vent. The selected air vent is indicated on monitor (7). ZX135US-6 Air flows out of the front and defroster vents. (Including defroster vent) Air flows out of the front, rear and defroster vents. (Including defroster vent) Air flows out of the front, rear, foot and defroster vents.
Page 190 OPERATOR'S STATION  Fan Switch (6)  When AUTO indicator (8) is ON, the blower speed is automatically controlled.  When AUTO indicator (8) is OFF, the blower speed is controlled in 6 steps. Rotate blower switch (6) clockwise to increase blower speed.
Page 191: Cab Heater Operation
OPERATOR'S STATION Cab Heater Operation 1. AUTO/OFF switch (6): According to signals sent from various sensors, the air conditioner amplifier automatically selects the air flow-in vents, air suction ports, and air flow-in temperature at the vent, and controls the blower speed. 2.
Page 192: Cooling Operation
OPERATOR'S STATION Cooling Operation 1. AUTO/OFF switch (6): Push AUTO/OFF switch (6) to set the air conditioner AUTO mode. According to signals sent from various sensors, the air conditioner amplifier automatically selects the air flow-in vents, air suction ports, and air flow-in temperature at the vent, and controls the blower speed.
Page 193: Defroster Operation
OPERATOR'S STATION Defroster Operation 1. Push AUTO/OFF Switch (6) to blow out temperature- controlled air. When starting the engine during the cold season, the engine coolant temperature and air temperature in the cab are low. The Heater Start- Operation Control System controls the blow rate to the minimum (LO) in order to restrict cool air from flowing into the cab.
Page 194: Tips For Optimal Air Conditioner Usage
OPERATOR'S STATION Tips for Optimal Air Conditioner Usage Auto Air Conditioner Sensor For Rapid Cooling Temperature in the cab may rise over 80 °C (176 °F) when the machine is exposed to sun light in the summer. In this case, ventilate air in the cab first by opening the windows for rapid cooling.
Page 195: Am/Fm Radio Operation
OPERATOR'S STATION AM/FM Radio Operation CAUTION: Refrain from listening to the radio in the cab while operating the machine. Controls on the Radio 1- AM/FM Selector/Tuning Switch "FM" or "AM" is switched over alternately each time the switch is pressed. Rotate tuning switch (1) clockwise to increase frequency, counterclockwise to decrease frequency.
Page 196: Station Presetting Procedure
OPERATOR'S STATION Station Presetting Procedure Setting from Monitor 1. Select the desired station. Refer to the "Tuning Procedure" in the previous section. 2. Push selector knob (1) while displaying Basic Screen (2) to display Main Menu screen (3). Rotate selector knob (1) to highlight Radio (4).
Page 197: Station Auto-Presetting Procedure
OPERATOR'S STATION Station Auto-Presetting Procedure Receivable stations can be automatically detected and preset to the memory. 1. Push selector knob (1) while displaying Basic Screen (2) to display Main Menu screen (3). 2. Rotate selector knob (1) to highlight Radio (4). Push selector knob (1) to display Radio screen (5).
Page 198: Tone Control
OPERATOR'S STATION TONE Control 1. Push selector knob (1) while displaying Basic Screen (3) to display Main Menu screen (4). 2. Rotate selector knob (1) to highlight Radio (5). Push selector knob (1) to display Radio screen (6). 3. Rotate selector knob (1) to highlight TONE (7). 4.
Page 199: Audio Input
OPERATOR'S STATION Audio Input IMPORTANT: This function is available only to a machine equipped with an audio input (Optional). Use this function with proper sound volume. Audio Input Selection Attach the audio input (Optional) device and push AM/FM Selector/Tuning Switch (1) to display AM and FM screen as well as AUX input screen (3).
Page 200: Aerial Angle Monitor
OPERATOR'S STATION Aerial Angle Monitor A composite image of the area around the vehicle is displayed on main monitor (1) and consists of images from camera (4) on the right side, camera (5) on the left and camera (6) on the rear of the machine.
Page 201 OPERATOR'S STATION IMPORTANT:  When the door of the cab is fully open, the door appears in the image from left side camera (5). If the field of vision is insufficient, ensure visibility using the operator seat mirror.  If there are any problems with the image on main monitor (1), consult your authorized dealer.
Page 202: Switching The Screen Display
OPERATOR'S STATION Switching the Screen Display When Left Side is When Right Side Pressed is Pressed Pressing screen changeover switch (1) changes the screen.  Display Screen Pressing the right side of the switch changes the screen in the  order. Left Right Pressing the left side of the switch changes the screen in the...
Page 203: Description Of Images
OPERATOR'S STATION Description of Images Image Around Machine The image around the machine is displayed full-screen. It is a composite of the images from the right, left and rear cameras. Image processing is used to compress the images, so a wide area around the machine can be viewed, including areas that are in blind spots with a normal rearview mirror.
Page 204 OPERATOR'S STATION Vehicle Icon Front The vehicle icon is a bird’s eye view of the vehicle from Vehicle Boundary Line directly above it. The vehicle icon on the monitor makes it possible to imagine the orientation of the vehicle and the position of the cab.
Page 205 OPERATOR'S STATION Image Behind + Image on Right of Machine This image is a composite of the images from the rear and right cameras. Camera direction guide icons (1) indicate which camera the displayed image is from. Image Image on Behind Right of Machine...
Page 206 OPERATOR'S STATION Discrepancies between Image and Actual Road Surface 1) Images of Ascending Slopes or Faces This indicates how the camera looks when shooting uphill. Actual Position of Point (a) Because point (a) on the upslope is stretched on the monitor screen on an extended line of the plane, the Slope distance from the vehicle icon is depicted as further than it...
Page 207: Cab Door Release Lever
OPERATOR'S STATION Cab Door Release Lever CAUTION:  Open the cab door all the way until it securely locks in the latch on the side of the cab.  Do not unlock the cab door when the machine is parked on a slope or while the wind is strong. The cab door may close accidently, possibly resulting in personal injury.
Page 208: Opening/Closing And Removing Cab Inside Window
OPERATOR'S STATION Opening/Closing and Removing Cab Inside Window WARNING:  Open, close or remove the upper front cab window, overhead window, cab door window or lower front window only after lowering the front attachment to the ground and pulling up pilot control shut-off lever (1) to the LOCK position.
Page 209: Opening Upper Front Window
OPERATOR'S STATION Opening Upper Front Window Opening Upper Front Window 1. Press lock release lever (1) at the upper center to release the upper front window lock. 2. Holding lock release lever (1) at the upper center and lower handle (4) on the upper front window as illustrated, pull the upper front window up and back until auto locks (3) at both sides of the upper front window securely catches into the strikers on the ceiling.
Page 210: Removing And Storing Lower Front Window
OPERATOR'S STATION Removing and Storing Lower Front Window CAUTION: Take care not to get yours fingers caught when handling the lower front window. Removing and Storing Lower Front Window 1. Open the upper front window beforehand when removing the lower front window. 2.
Page 211: Opening Side Window
OPERATOR'S STATION Opening Side Window Hold handle (1) and slide windowpane to open the side window. M178-01-061 Side Window 1-137...
Page 212: Opening And Closing The Roll Screen (For Front And Right Windows) (Optional)
OPERATOR'S STATION Opening and Closing the Roll Screen (for Front and Right Windows) (Optional) To provide shade and ensure good visibility for the operator, roll screens are fitted. Roll screens are a fitted to the front window and window on the right side to provide shade.
Page 213 OPERATOR'S STATION 3. While holding the center of bar (1), press switch (6) and wind up the screen to adjust screen pull-out. The left-right position of the screen can be adjusted by sliding case (7) until it hits stopper (8). MDFY-01-068 MDC1-01-595 Direction of operation for switch (6)
Page 214: How To Store On Right Window Side
OPERATOR'S STATION How to Store on Right Window Side When opening or closing the front window, store on the right window side. 1. Perform the reverse of the procedure described in How to Use on the Front Window and move to the right side. 2.
Page 215: Opening/Closing Overhead Window (Clear Hatch)
OPERATOR'S STATION Opening/Closing Overhead Window (Clear Hatch) Move locks (1) toward center of window. Hold handle (2) and lift window until it rises upright. With the window positioned upright, it will be secured in position by dampers (3). Hold handle (2) and pull window down until "click" sound is heard from left and right locks (1).
Page 216: Emergency Exit
OPERATOR'S STATION Emergency Exit Escape from the cab in emergency in the following methods: CAUTION: The danger of falling is always present when escaping from the cab in emergency, possibly resulting in serious personal injury. Escape from the cab as safely as possible, depending on the position of the machine and the situation outside.
Page 217: Opening And Closing The Opg Front Guard (Optional)
OPERATOR'S STATION Opening and Closing the OPG Front Guard (Optional) WARNING:  Do not release lever (1) when the machine is on a slope. The guard may suddenly open.  To open and close the OPG front guard, hold (A). If holding other parts, there is a risk of your hand becoming caught.
Page 218: Adjusting Operator's Seat
OPERATOR'S STATION Adjusting Operator's Seat WARNING: Adjust the seat only after lowering the front attachment on the ground and pulling up the pilot control shutoff lever to the LOCK position. Failure to do so has the risk of operator’s part of body touch the control lever or pedal by mistake, allowing the machine to move unexpectedly, which may result in personal injury or death.
Page 219: Backrest Adjustment
OPERATOR'S STATION Backrest Adjustment Pull up lever (5) to release backrest lock. Move backrest to the desired position and release lever (5). MDAA-01-332 Armrest Adjustment Armrest (6) can be pulled upright by hand 90 °. Pull the armrest upright by hand to get on and off the machine easily.
Page 220: Adjusting Operator's Seat (Optional)
OPERATOR'S STATION Adjusting Operator's Seat (Optional) WARNING: Adjust the seat only after lowering the front attachment to the ground and pulling up the pilot control shut-off lever to the LOCK position. Failure to do so may allow the machine to move unexpectedly if a control lever or pedal is mistakenly touched with a part of the body, possibly resulting in personal injury or death.
Page 221: Suspension Adjustment
OPERATOR'S STATION Suspension Adjustment Rotate knob (5) to adjust the suspension. Rotate knob (5) clockwise to decrease suspension stiffness. Rotate knob (5) counterclockwise to increase suspension stiffness. Fore-Aft Position Adjustment of Seat Surface Pull lever (6) upward to adjust the seat angle. Seat and console fore-aft adjustment range is 60 mm with steps every 15 mm.
Page 222: Console Height Adjustment
OPERATOR'S STATION Console Height Adjustment Adjust the console height to the operator's comfort and/or work conditions. Console height can be vertically adjusted to 3 positions at 20 mm intervals. CAUTION: Before adjusting the console, support the console. Failure to do so may result in the console dropping suddenly, possibly causing personal injury.
Page 223: Installation And Adjustment Of Mirrors
OPERATOR'S STATION Installation and Adjustment of Mirrors WARNING:  Adjust the mirrors, referring to the field of vision in the mirrors in the "VISIBILITY MAP" chapter. Perform adjustment with the machine position as shown.  If the mirrors are adjusted improperly, the field of vision cannot be ensured and/or will be obstructed, MDAT-VM-001 Machine Position Image...
Page 224: Mirror Installation Diagram
OPERATOR'S STATION Mirror Installation Diagram The mirror installation locations (1, 2, 3, 4, 5, 6) on this machine are shown in the right. Adjust the installation locations of each mirror by following the instructions below to ensure safety. Installation angle and dimension varies depending on the model.
Page 225 OPERATOR'S STATION  Operator's Seat Mirror (1) Adjust the mirror to the specified position. 90° 115° MDAT-01-271 ZX135US-6, 225USLC-6 75° 110° MDC1-01-549 ZX345USLC-6 1-151...
Page 226 OPERATOR'S STATION  Handrail Mirror for Getting ON/OFF the Machine (2) 15° Adjust the mirror to the specified position. Adjust the mirror so that a range of at least 1 m from the right side of the machine can be seen from the operator’s seat.
Page 227 OPERATOR'S STATION  Handrail Mirror for Getting ON/OFF the Machine (3) Adjust the mirror to the specified position. 90° Adjust the mirror so that a range of at least 1 m from the right side of the machine can be seen from the operator’s seat.
Page 228 OPERATOR'S STATION  Oil Tank Handrail Mirror (5) (ZX135US-6 only) 85 mm Adjust the mirror to the specified position. 60° Adjust the mirror so that a range of at least 1 m from the right side of the machine can be seen from the operator’s seat.
Page 229 OPERATOR'S STATION  Fuel Tank Handrail Mirror (7) (ZX345USLC-6 only) Adjust the mirror to the specified position. Adjust the mirror so that a range of at least 1 m from the 390 mm right side of the machine can be seen from the operator’s 70 mm seat.
Page 230 OPERATOR'S STATION  Aftertreatment Device Cover Mirror (8) (ZX345USLC-6 only) Adjust the mirror to the specified position. Adjust the mirror so that a range of at least 1 m from the right side of the machine can be seen from the operator’s seat.
Page 231: Seat Belt
OPERATOR'S STATION Seat Belt WARNING:  Be sure to use seat belt (1) when operating the machine.  Before operating the machine, be sure to examine seat belt (1) and attaching hardware for any failure. If any damage and/or wear are found, replace the part concerned.
Page 232: Battery Disconnect Switch
OPERATOR'S STATION Battery Disconnect Switch IMPORTANT:  Do not turn the battery disconnect switch OFF while engine is running or the key switch is in another position than the OFF position. Failure to do so may damage the electrical system. ...
Page 233 OPERATOR'S STATION  Refer to the page 1-121 "AM/FM Radio Operation" for the turning of radio.  Refer to the page 1-39 "Setting Menu" and 1-40 "Data and Time" for the setting of clock.  Refer to the page 1-113 "Auto Air Conditioner" for the setting of air conditioner.
Page 234: Switch Operation
OPERATOR'S STATION Switch Operation 1. Open cover (1). When lever (3) is in the horizontal position, the battery disconnect switch is ON. When lever (3) is in the horizontal position, lever (3) can not be removed. 2. Check that lamp (2) is not lit. Lamp (2) goes off 5 minutes after the key switch is turned to OFF.
Page 235: Break-In
BREAK-IN Observe Engine Operation Closely IMPORTANT: Use extra caution during the first 50 hours of operation, until you become thoroughly familiar with the sound and feel of your new machine. 1. Only operate the machine in economy (ECO) mode and limit engine horsepower to around 80 % of its full load.
Page 236 BREAK-IN MEMO ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 237: Operating The Engine
OPERATING THE ENGINE Inspect Machine Daily Before Starting Perform the required daily check before starting the engine. Engine  Level of engine oil and coolant*  Ease of starting, exhaust gas color, and noise  Oil and water leaks, damage to hoses and pipe lines* ...
Page 238 OPERATING THE ENGINE Others  Operation of instruments, switches, lights and buzzer/ horn*  Function of parking brake  Deformity and/or breakage to the head guard  Abnormal outside appearance of machine  Wear and damage of the seat belt* ...
Page 239: Before Starting Engine
OPERATING THE ENGINE Before Starting Engine 1. Ensure that the battery disconnect switch is in the ON position. 2. Confirm that pilot control shut-off lever (1) is in the LOCK position. 3. Confirm that all control levers are placed in neutral. 4.
Page 240: Starting The Engine
OPERATING THE ENGINE Starting the Engine Starting the Engine in Ordinary Temperature 1. Confirm that pilot control shut-off lever (1) is in the LOCK position. 2. Turn engine control dial (3) to the slow idle position. 3. Sound horn to alert bystanders 4.
Page 241 OPERATING THE ENGINE NOTE: When the key switch is turned ON, the maintenance notification (4) for the item whose maintenance interval has expired displays for 10 seconds. Push Return to Previous Screen switch (5) or turn the pilot control shut-off lever to the UNLOCK position while the rear view camera is enabled to delete the notification.
Page 242 OPERATING THE ENGINE 9. Release key switch (2) just after the engine has started. Key switch (2) will automatically return to the ON position. NOTE:  The engine speed will be kept to slow idle speed just after the engine starts. When engine speed control indicator (7) is displayed, slow idle speed will be maintained.
Page 243 OPERATING THE ENGINE Starting in Cold Weather Preheating 1. Confirm that pilot control shut-off lever (1) is in the LOCK position. 2. Turn engine control dial (3) to around the middle between the L and H position. 3. Sound the horn to alert bystanders. 4.
Page 244 OPERATING THE ENGINE NOTE: When the key switch is turned ON, maintenance notification (4) for the item whose maintenance interval has expired displays for 10 seconds. Push Return to Previous Screen switch (5) or turn the pilot control shut-off lever to the UNLOCK position while the rear view camera is enabled to delete the notification.
Page 245 OPERATING THE ENGINE 9. Release key switch (2) just after the engine has started. Key switch (2) will automatically return to ON position. NOTE:  The engine speed will be kept to slow idle speed just after the engine starts. When engine speed control indicator (7) is displayed, slow idle speed will be maintained.
Page 246: Check Instruments After Starting
OPERATING THE ENGINE Check Instruments After Starting Checking instruments through monitor functions After starting the engine, check the following points through the monitor functions. 1. Check that alternator alarm indicator (1) is OFF. In case alternator alarm indicator (1) stays ON, immediately stop the engine.
Page 247: Using Booster Batteries
OPERATING THE ENGINE Using Booster Batteries IMPORTANT: The machine electrical system is a 24 volt negative (-) ground. Use only 24 volt booster batteries with sufficient capacity. WARNING:  An explosive gas is produced while batteries are in use or being charged. Keep open flames and sparks away from the battery area.
Page 248 OPERATING THE ENGINE Disconnecting the booster cables Battery Disconnect Switch 1. Disconnect black negative (-) cable (2) from the machine frame first. (Red) 2. Disconnect the other end of black negative (-) cable (2) from the booster batteries. 3. Disconnect red positive (+) cable (1) from the booster batteries.
Page 249: Stopping The Engine
OPERATING THE ENGINE Stopping the Engine Engine Stop Procedure 1. Except for special cases, before stopping the engine, lower the bucket and blade to the ground. 2. Pull pilot control shut-off lever (3) to LOCK position. 3. Turn engine control dial (1) to the slow idle position and run the engine for 5 minutes to cool the engine.
Page 250: Engine Auto-Stop In Extremely Low Temperature
OPERATING THE ENGINE Engine Auto-Stop in Extremely Low Temperature WARNING: This function automatically stops the engine. Take extra care on the work and work environment when using this function. IMPORTANT: If the machine is left unoperated in an environment with temperatures under -20°C or lower for a long period of time, exhaust gas particles may accumulate in the aftertreatment device, and may result in damage to the device.
Page 251: Driving The Machine
DRIVING THE MACHINE Travel Levers and Pedals Front Travel Operation Travel operation of this machine is controlled by using levers and pedals. WARNING: If the travel motors are located at the front Front Idler of the machine, the machine will move in the reverse direction to that shown on the operation instruction decal.
Page 252 DRIVING THE MACHINE  Pivot Turn The machine direction is changed by driving one of two crawlers with either left or right travel levers (or pedals). M104-04-010 Pivot Turn M104-04-005  Spin Turn The machine direction is changed by driving two crawlers in opposite direction at a time by operating one lever (or pedal) to forward and another lever (or pedal) to reverse.
Page 253: Travel Mode Switch
DRIVING THE MACHINE Travel Mode Switch WARNING: Tipping-over accidents can cause serious personal injury. Do not change travel mode switch (1) while traveling. In particular, changing to fast mode (2) while descending a slope is very dangerous. Always stop the machine before changing the travel speed mode.
Page 254: Operating On Soft Ground
DRIVING THE MACHINE Operating on Soft Ground Avoid traveling on very soft ground. If traveling on soft ground is unavoidable, please carefully follow below.  Travel only an area self-propelling is possible. And in case of any emergency, do not go into depth of retrieval impossible.
Page 255: Retrieval
DRIVING THE MACHINE Retrieval Soft Protector CAUTION: Cables, straps, or ropes can break causing serious injury. Do not tow the machine with damaged chains, frayed cables, slings, straps, or wire ropes. Always wear gloves when handling cable, straps or wire ropes. When it becomes unable to evacuate from soften ground by machine itself, retrieve the machine with another machine by Wire Rope...
Page 256: Operating In Water Or Mud
DRIVING THE MACHINE Operating in Water or Mud The machine can be operated in water up to the upper edge of the upper rollers only if water is flowing slowly, and the worksite ground is firm enough to prevent the machine from sinking past the upper edge of the upper roller.
Page 257: Parking The Machine On Slopes
DRIVING THE MACHINE Parking the Machine on Slopes WARNING: Avoid parking machine on slopes. The machine may tip over, possibly resulting in personal injury. If parking the machine on a slope is unavoidable:  Thrust the bucket teeth into the ground. ...
Page 258: Prohibition Of Sudden Control Operations When Traveling At High Speed
DRIVING THE MACHINE Prohibition of Sudden Control Operations when Traveling at High Speed When traveling at high speed, do not perform operations such as emergency stop. Do not perform operations such as repeated switching between forward and reverse. Repetition of these kinds of operation increases the load on rollers, front idler and travel device, and risks damaging internal parts of the machine and shortening their life.
Page 259: Operating The Machine
OPERATING THE MACHINE Control Lever (ISO Pattern) WARNING:  Never extend any part of body beyond window bars or frame, as it could be crushed, if boom control lever is accidentally bumped or otherwise engaged. Never remove the window sash bar. ...
Page 260: Pilot Control Shut-Off Lever
OPERATING THE MACHINE Pilot Control Shut-Off Lever Pilot control shut-off lever (1) functions to prevent misoperation of the machine if control levers and pedals are accidentally moved when leaving the operator's seat or when entering the cab. WARNING: Always pull pilot control shut-off lever (1) into the full LOCK position.
Page 261: Warming-Up Operation
OPERATING THE MACHINE Warming-Up Operation In cold weather, warm up the machine until coolant and hydraulic oil temperature increases to the appropriate operating temperature. Slow Idle IMPORTANT:  The appropriate hydraulic oil operating temperature on this machine is 50 to 80 °C. Hydraulic components may be seriously damaged if the machine is operated with low temperature hydraulic oil.
Page 262: Engine Speed Control
OPERATING THE MACHINE Engine Speed Control Increase and decrease the engine speed using engine control dial (1) located on the switch panel, as illustrated.  Turn engine control dial (1) clockwise to increase the engine speed. Turn engine control dial (1) counterclockwise to decrease the engine speed.
Page 263: Auto-Idle
OPERATING THE MACHINE Auto-Idle Auto-Idle Function When auto-idle switch (3) is turned to the A/I ON position, approximately 4 seconds after all control levers are returned to neutral, the engine speed decreases to the auto-idle setting to save fuel consumption. The engine speed will immediately increase to the speed set by engine control dial (2) when any control lever is operated.
Page 264: Auto-Idle On/Off
OPERATING THE MACHINE Auto-Idle ON/OFF Note that the auto-idle function can be turned ON or OFF by using auto-idle switch (3) only when the key switch is in ON position. Always check if the auto-idle function is turned ON or OFF with auto-idle indicator (1).
Page 265: Auto Shut-Down
OPERATING THE MACHINE Auto Shut-Down WARNING: This function automatically stops the engine. Take extra care on the work and work environment when using this function. When the auto shut-down function is turned ON, the engine automatically stops after the preset time at the state in which the pilot control shut-off lever is pulled.
Page 266 OPERATING THE MACHINE IMPORTANT:  Even if the auto shut-down function is ON, the engine will not stop during manual regeneration of the aftertreatment device.  When the auto shut-down activates, the air conditioner will also stop. Setting the Auto Shut-Down Function Auto Shut-Down: On/Off 1.
Page 267 OPERATING THE MACHINE 5. Push selector knob (2) to display Auto Shut-Down screen (7). MDCD-01-026 6. Rotate selector knob (2) to highlight ON (8). 7. Push selector knob (2) to turn the Auto Shut-Down function ON. Push selector knob (2) again to turn the auto shut-down function OFF.
Page 268: Aftertreatment Device Manual Regeneration
OPERATING THE MACHINE Aftertreatment Device Manual Regeneration Manual Regeneration Procedure When the manual regeneration is needed, screen (1) as shown on the right side will be displayed. When screen (1) is displayed, you need to perform the manual regeneration. Before starting the manual regeneration, be sure to check the following.
Page 269 OPERATING THE MACHINE 6. When the manual regeneration is finished, "Regeneration Has Completed." message will be displayed. If "Regeneration Has Failed." message is displayed, start the manual regeneration process again. Regeneration process may fall in conditions other than those mentioned above (such as sensor malfunction or low ambient temperature).
Page 270: Work Mode
OPERATING THE MACHINE Work Mode Select Work Mode in the main menu, and select the appropriate hydraulic circuit and pump flow rate for the front attachment at Work Mode screen. When the engine is started, the digging mode is automatically set.
Page 271 OPERATING THE MACHINE The selected work mode is indicated by attachment mode indicator (2) on Basic Screen (1). Select the work mode corresponding to the work in which the machine is engaged, referring to the table below. Work Mode Description Digging Mode Select this mode when using bucket.
Page 272 OPERATING THE MACHINE Attachment Selection 1. Push selector knob (2) while displaying Basic Screen (1) to display Main Menu screen (3). 2. Rotate selector knob (2) to highlight Work Mode (4). 3. Push selector knob (2) to display Work Mode screen (5). 4.
Page 273: Power Boost Switch
OPERATING THE MACHINE Power Boost Switch Power boost switch (4) is located on the top of the right control lever. When power boost switch (4) is pushed, increased front attachment power will be supplied for about 8 seconds. MDAA-01-344 5-15...
Page 274: Power Mode
OPERATING THE MACHINE Power Mode Two engine speed modes, ECO or PWR mode is selected by operating power mode switch (1). ECO (Economy) Mode Operate the machine in this mode when performing normal work. ECO is displayed on Power Mode Display (2). PWR (Power) Mode Use PWR (Power) mode when extra horsepower is needed.
Page 275: Operating Backhoe
OPERATING THE MACHINE Operating Backhoe  Use the appropriate arm and bucket for the work. (Refer to the "Bucket Types and Applications" in the Specifications chapter.)  Pull the bucket toward the machine using the arm as the main digging force. ...
Page 276: Shovel
OPERATING THE MACHINE Shovel Backhoe operation digs the ground using the bucket in a roll- in motion. Face shovel operation digs the ground using the arm cylinder in a scraping motion. WARNING: Take care not to hit the cab when rolling in the arm with a reversed-installed bucket.
Page 277: Grading Operation
OPERATING THE MACHINE Grading Operation Operate the boom, arm, and the bucket in such a way so that the bucket teeth move horizontally, constantly keeping them perpendicular to the ground at the grading operation. IMPORTANT: Do not pull or push dirt with the bucket when traveling.
Page 278: Do Not Strike The Ground With Bucket Teeth
OPERATING THE MACHINE Do Not Strike the Ground with Bucket Teeth WARNING: Forcibly striking the bucket teeth on the ground may result in personal injury from flying debris. It will also shorten the service life of each part on the front attachment. If the bucket teeth are forcibly struck on the ground, it shortens the service life of the front attachment parts (especially the bucket).
Page 279: Avoid Abusive Operation
OPERATING THE MACHINE Avoid Abusive Operation Do not attempt to add additional digging force by using travel, raising the rear of the machine to use the machine’s weight. MZX5-05-005 Never Move an Object Sideways with the Bucket For example, do not swing the bucket to level material or do not strike objects sideways with the bucket.
Page 280: Retracting The Arm And Bucket
OPERATING THE MACHINE Retracting the Arm and Bucket Pay attention to the following when installing cab equipment (optional) such as OPG (level 2) front guard, OPG (level 2) head guard, rain visor, cab top lights (4 lights), etc. CAUTION: When the machine is equipped with the cab equipment mentioned above, the teeth of the bucket may hit the cab equipment if the arm is retracted excessively.
Page 281: Shackle Hole Usage
OPERATING THE MACHINE Shackle Hole Usage Shackle hole for towing light weight objects. A shackle hole is provided on the track frame to tow light weight objects. IMPORTANT: Be sure to conform to the restrictions and precautions stated below when towing a light weight object using the shackle hole provided on the track Wire Rope frame.
Page 282: Pilot Accumulator Functions (Optional)
OPERATING THE MACHINE Pilot Accumulator Functions (Optional) Pilot accumulator (1) is a pressure storage reservoir of the control circuit which supplies pressure and enables operation of the control circuit even after stopping the engine. The front attachment can be lowered using the control lever and the weight of the attachment itself, and pressure in the hydraulic circuit can be released after stopping the engine.
Page 283: How To Lower Boom In Case Of Emergency And When Engine Stops
OPERATING THE MACHINE How to Lower Boom in Case of Emergency and When Engine Stops (Without hose-rupture safety valve) WARNING: Prevent personal injury. Confirm that no one is under the front attachment before starting the procedure below. In case the engine suddenly stops and the engine cannot be restarted, lower the boom by following the procedure below.
Page 284: Precautions For After Operations
OPERATING THE MACHINE Precautions for After Operations  After finishing the day's operation, drive the machine to a firm, level ground where no possibility of falling stones, ground collapse, or floods are present. (Refer to the section "PARKING THE MACHINE" in the DRIVING THE MACHINE chapter.) ...
Page 285: Transporting
TRANSPORTING Transporting by Road When transporting the machine on public roads, be sure to first understand and follow all local regulations.  When transporting the machine using a trailer, check the width, height, length and weight of the trailer with the machine loaded.
Page 286: Loading/Unloading On A Trailer
TRANSPORTING Loading/Unloading on a Trailer Always load and unload the machine on a firm, level surface. WARNING: Be sure to use a loading dock or a ramp for loading/unloading. Never use the front attachment functions when loading or unloading the machine. Ramp/Loading Dock: 1.
Page 287 TRANSPORTING Loading/Unloading WARNING:  Always turn the auto-idle switch OFF when loading or unloading the machine. In auto-idle mode, speed may automatically increase.  Always select slow speed mode with the travel mode switch.  Never steer while driving up or down a ramp, it is extremely dangerous and may cause the machine to turnover.
Page 288 TRANSPORTING 3. When the front attachment is fitted 3.1 Determine a position for the bucket in line with the trailer. Adjust the angle of the boom and the arm at 90 to 110 °. 3.2 Lower the bucket onto to the deck of the trailer before the machine passes over the end of the ramp for support.
Page 289: Fastening Machine For Transporting
TRANSPORTING Fastening Machine for Transporting WARNING: Fasten the machine frame to the deck securely with chains and cables. While traveling, loads may shake around, move forward or backward or to the sides. 1. Place cog stoppers or blocks in front of and behind the tracks to help secure the machine.
Page 290: Unloading
TRANSPORTING Unloading WARNING: At the point where the ramp meets the level surface there is a sudden change of angle. Take care when traveling over it. IMPORTANT: Make sure that the angle of the boom and the arm is kept between 90 to 110 ° when unloading the machine.
Page 291: Lifting Machine
TRANSPORTING Lifting Machine WARNING:  Use lifting cables and other lifting tools that are sufficient strong, and free from any damage and/or other defect.  Consult your authorized dealer for correct lifting procedures, and the size and types of lifting cable and tools.
Page 292 TRANSPORTING Lifting Support Bar 1. Fully extend the arm and bucket cylinders. Lower Center of the boom until the bucket comes in contact with the Gravity ground. 2. Pull the pilot control shut-off lever to the LOCK position. 3. Stop the engine. Remove the key from the key switch. 4.
Page 293: Maintenance
IMPORTANT:  Use only specified fuel, DEF/AdBlue®, lubricants and coolant.  Be sure to use only genuine Hitachi parts. Failure to do so may result in serious injury or death and/or machine breakdown.  Failure to use recommended fuel, lubricants, and genuine Hitachi parts will result in loss of Hitachi product warranty.
Page 294 MAINTENANCE  Body Information Controller This machine provides a body information controller that stores machine operation information for preventive maintenance. When maintaining the machine, our authorized service man may down load the stored information. Consult with your authorized dealer for detailed function of this device. ...
Page 295: Layout
MAINTENANCE Layout ZX135US-6, 225USLC-6 13 (ZX225USLC-6) 10 (ZX135US-6) 13 (ZX135US-6) 10 (ZX225USLC-6) MDAT-07-001 Tooth 13- Swing Reduction Gear 24- Radiator, Oil Cooler, Inter 36- Washer Tank Side Cutter 14- Hydraulic Oil Tank Cooler 37- Track Adjuster Bucket 15- Fuel Tank 25- DEF/AdBlue®...
Page 296 MAINTENANCE Layout ZX345USLC-6 MDD5-01-001 Tooth 13- Swing Reduction Gear 24- Radiator, Oil Cooler, Inter 35- Washer Tank Side Cutter 14- Hydraulic Oil Tank Cooler 36- Track Adjuster Bucket 15- Fuel Tank 25- DEF/AdBlue® Tank 37- Front Idler Link A 16- Engine 26- Center Joint 38- Air Cleaner Link B...
Page 297: Check The Hour Meter Regularly
MAINTENANCE Check the Hour Meter Regularly Refer to the List of Check and Maintenance for information about lubricants, check and adjustment intervals. The maintenance guide table is affixed to the reverse side of the front right cover. Refer to the next page. This manual recommends grouping the intervals into three categories as follows: Daily Check...
Page 298: Maintenance Guide Table
MAINTENANCE Maintenance Guide Table The maintenance guide table is affixed to the reverse side of the front right cover. Lubricate and/or service the parts at the intervals as instructed in the table so that all necessary maintenance can be performed regularly. ...
Page 299 MAINTENANCE  Maintenance Guide Table ZX135US-6 MDAT-07-002 Lubrication Interval (hours) Item Page Item Page 1 Engine Oil 7-55 10 Hydraulic Oil Filter (Pilot) 7-73 2 Coolant (Long-Life Coolant) 7-98 11 Hydraulic Oil Filter (Air Breather) 7-74 3 Grease 7-32 12 Engine Oil Filter 7-55 4 Grease (Every 500 hours.
Page 300 MAINTENANCE ZX225USLC-6 Lubrication Interval (hours) MDAT-07-055 Item Page Item Page 1 Engine Oil 7-55 10 Hydraulic Oil Filter (Pilot) 7-73 2 Coolant (Long-Life Coolant) 7-98 11 Hydraulic Oil Filter (Air Breather) 7-74 3 Grease 7-32 12 Engine Oil Filter 7-55 4 Grease (Every 500 hours.
Page 301 MAINTENANCE ZX345USLC-6 MDD5-07-050 Lubrication Interval (hours) Item Page Item Page 1 Engine Oil 7-55 10 Hydraulic Oil Filter (Pilot) 7-73 2 Coolant (Long-Life Coolant) 7-98 11 Hydraulic Oil Filter (Air Breather) 7-74 3 Grease 7-32 12 Engine Oil Filter 7-55 4 Grease (Every 500 hours.
Page 302: Preparations For Inspection And Maintenance
MAINTENANCE Preparations for Inspection and Maintenance Except in special cases, park the machine by following the procedure before servicing the machine. 1. Park the machine on a firm, level surface. 2. Lower the bucket to the ground. M104-07-021 3. Turn the auto-idle switch OFF. 4.
Page 303: Hood And Access Covers
MAINTENANCE Hood and Access Covers ZX135US-6 WARNING:  Do not keep the hood and access covers open when the machine is parked on a slope, or while the wind is blowing hard. The hood or access covers may close accidentally, possibly resulting in personal injury. ...
Page 304 MAINTENANCE ZX225USLC-6 WARNING:  Do not keep the hood and access covers open when the machine is parked on a slope, or while the wind is blowing hard. The hood or access covers may close accidentally, possibly resulting in personal injury. ...
Page 305 MAINTENANCE ZX345USLC-6 WARNING:  Do not keep the hood and access covers open when the machine is parked on a slope, or while the wind is blowing hard. The hood or access covers may close accidentally, possibly resulting in personal injury. ...
Page 306: Maintenance Guide
 When a bucket which does not have clearance adjustment mechanism such as slope-finishing bucket or V-type bucket, or a genuine Hitachi hoe bucket before EX-5 model, or an attachment other than genuine Hitachi bucket is used, grease two pins every 250 hours.
Page 307 MAINTENANCE C. Transmission Interval (hours) Parts Quantity Page 100 250 500 1000 2000 Check Oil Level 7-60 ZX225USLC-6 1.6 L Pump Change 7-60 Transmission ZX345USLC-6 1.7 L Air Breather Cleaning 7-60 Check Oil Level 7-61 ZX135US-6 3.2 L Swing Reduction Gear Change ZX225USLC-6...
Page 308 MAINTENANCE E. Fuel System Interval (hours) Parts Quantity Page 500 1000 2000 1. Drain Fuel Tank Sump 7-81 2. Drain Fuel Pre-Filter 7-82 3. Replace Fuel Main Filter Element (or when indicator lit) 7-85 4. Replace Fuel Pre-Filter Element (or when indicator lit) 7-87 for leaks, cracks −...
Page 309 IMPORTANT:  Use soft water as a coolant. Do not use strong acid or alkaline water. Use the coolant with genuine Hitachi Long-Life Coolant (LLC) mixed by 30 to 50 %. If a coolant mixed with less than 30 % of Hitachi Long-Life Coolant is used, service life of the cooling parts may be shortened due to damage by freezing or corrosion of coolant system parts.
Page 310 MAINTENANCE I. Miscellaneous Interval (hours) Parts Quantity Page 100 250 500 1000 2000 4500 1. Check and Replace Bucket Teeth − 7-113 2. Change Bucket − As required 7-115 3. Convert Bucket Connection Into Face Shovel − As required 7-116 4.
Page 311 MAINTENANCE J. Aftertreatment Device Interval (hours) Parts Quantity Page 100 250 500 1000 2000 4500 1. Check and Clean Aftertreatment Device − As required 7-161 K. Urea SCR System Interval (hours) Parts Quantity Page 100 250 500 1000 2000 4500 1.
Page 312: Periodic Replacement Of Parts
MAINTENANCE Periodic Replacement of Parts To ensure safe operation, be sure to conduct periodic inspection of the machine. In addition, the parts listed below, if defective, may pose serious safety/fire hazards. These parts may cause serious safety/fire hazards due to deterioration, wear, or fatigue being attributed to material aging or repeated operation.
Page 313: Kind Of Oils
Hitachi Genuine Engine Oils.  If you do not use Hitachi Genuine Engine Oil, use engine oil conforming to JASO DH-2. Otherwise, engine and aftertreatment device may suffer damage or performance of engine and aftertreatment device may deteriorate.
Page 314: Brand Names Of Recommended Oil
Hitachi Genuine Gear Oil and Hitachi Genuine Engine Oil .  If you do not use Hitachi Genuine Gear Oil or Hitachi Genuine Engine Oil , use gear oil or engine oil conforming to specifications described above. Otherwise, the machine may suffer damage.
Page 315: Recommended Oil Viscosity
Air Temperature (degrees Celsius) Where to be Applied Kind of Oil Engine Oil Pan Engine Oil Hitachi Genuine Engine Oil DH-2 10W-40 Hitachi Genuine Engine Oil DH-2 10W-40 Pump Transmission Engine Oil Hitachi Genuine Engine Oil DH-1 15W-40 Swing Reduction Gear...
Page 316: List Of Consumable Parts
MAINTENANCE List of Consumable Parts ZX135US-6 Filter Elements Part No. Quantity High Performance Full-Flow Filter 4450002 Hydraulic Air Breather Element 4437838 Pilot Oil Filter (with O-ring) 4630525 Engine Oil Filter 4658521 Fuel Main Filter Element YA00033486 Fuel Pre-Filter Element YA00005785 Fuel Filter Element (Automatic Refueling Device) YA00029016 Air Cleaner Element (outer)
Page 317 MAINTENANCE Bucket Parts Part No. Quantity Tooth 963228 Lock Pin 963229 Tooth Lock Rubber 963227 Side Cutter (right side) 2015428 Side Cutter (left side) 2015429 Bolt J932060 Side Cutter J951020 Spring Washer A590920 O-ring 4276696 NOTE: Quantity row on the above table represents number of parts used for one bucket. The parts quantity of O-ring includes connection part of arm and link Optional Parts Part No.
Page 318 MAINTENANCE ZX225USLC-6 Filter Elements Part No. Quantity High Performance Full-Flow Filter YA00033064 Hydraulic Air Breather Element 4437838 Pilot Oil Filter (with O-ring) 4630525 Engine Oil Filter 4658521 Fuel Main Filter Element YA00033486 Fuel Pre-Filter Element YA00005785 Fuel Filter Element (Automatic Refueling Device) YA00029016 Air Cleaner Element (outer) 4286128...
Page 319 MAINTENANCE Optional Parts Part No. Quantity Tooth 452632 Bolt J932280 Clamshell Bucket J951022 Spring Washer A590922 Tooth 971377 One Point Ripper 971378 Bushing Rubber 971379 Tooth 971377 971378 Bushing Rubber 971379 Ripper Bucket Tooth 4427919 Lock Pin 4501627 Lock Rubber 4319920 Tooth 973347...
Page 320 MAINTENANCE ZX345USLC-6 Filter Elements Part No. Quantity Full-Flow Filter (with O-ring) YA00033065 High Performance Full-Flow Filter YA00033064 Hydraulic Air Breather Element 4437838 Pilot Oil Filter (with O-ring) 4630525 Engine Oil Filter 4658521 Fuel Main Filter Element YA00033486 Fuel Pre-Filter Element YA00005785 Air Cleaner Element (outer) 4459549...
Page 321 MAINTENANCE Optional Parts Part No. Quantity Tooth 4507888 One Point Ripper 4507890 Bushing Rubber 4507891 Tooth 4507888 4507890 Ripper Bucket Bushing Rubber 4507891 Tooth 4383048 Lock Pin 4383069 Tooth 4400253 Lock Pin 4383465 Shroud 4435856 Rock Bucket Shroud 4435857 Bolt J932780 J951027 Washer...
Page 322: Greasing
MAINTENANCE A. Greasing Front Joint Pins --- every 500 hours (first time after 250 hours) Lubricate all fittings shown in the figure. M178-07-007  Boom Cylinder Bottom Side M157-07-156  Boom Foot ZX135US-6 MDAT-07-010 ZX225USLC-6 MDD5-07-004 M178-07-082 ZX345USLC-6 7-30...
Page 323 MAINTENANCE  Boom and Arm Joint Pin, Arm Cylinder Rod Pin and Bucket Cylinder Bottom Pin M157-07-157  Boom Cylinder Rod Pins and Arm Cylinder Bottom Pin MDAT-07-010 ZX135US-6 ZX225USLC-6 MDD5-07-004 M178-07-082 ZX345USLC-6 7-31...
Page 324: Swing Bearing
MAINTENANCE Swing Bearing --- every 500 hours CAUTION: Lubricating both the swing bearing and gear, and rotating the upperstructure must be done by one person. Before you lubricate the swing bearing, clear the area of all persons. Each time you leave the cab ...
Page 325: Swing Internal Gear
MAINTENANCE Swing Internal Gear --- every 500 hours CAUTION: Before lubricating the machine, lower the bucket on the ground, stop the engine and pull the pilot control shut-off lever to the LOCK position. 1. Remove cover (1) from upperstructure. Check if the swing internal gear is properly lubricated by grease.
Page 326 MAINTENANCE If the grease is contaminated, remove grease by opening cover (3) at the undercarriage side and change with clean grease. Model Grease Capacity ZX135US-6 ZX225USLC-6 17 L ZX345USLC-6 19 L M157-07-161 7-34...
Page 327: Electric Grease Gun (Nickel-Cadmium Battery) (Only Zx345Us-6 Class)
MAINTENANCE Electric Grease Gun (Nickel-Cadmium Battery) (Only ZX345US-6 class) CAUTION:  Since the electric grease gun is not a water- resistance type, avoid leaving it in a place exposed to rain and water. Do not use the electric grease gun in rain fall.
Page 328 MAINTENANCE IMPORTANT:  Do not use the attached battery charger except for charging the attached battery pack. If a battery other than the attached one is charged personal injury and damage may result due to explosion. Never attempt to charge the attached battery pack by a battery charger other than attached one under any circumstances.
Page 329: Electric Grease Gun
MAINTENANCE Electric Grease Gun Specifications Operating voltage 12 V Maximum operating pressure 41.4 MPa (422 kgf/cm Grease cartridge capacity 411 cc -18 to 50 ° C Operating temperature range Operating current (at pressure 6.9 MPa (70 kgf/cm ) 4 A Grease Consistency: 2 or less Grease delivery flow...
Page 330: Components Name
MAINTENANCE Components Name 1- Switch 2- Motor assembly 3- Nozzle (CNP-2) 4- Cap 5- Cartridge grease 6- Oil barrel 7- Chain (Lever) 8- Battery pack 9- Battery charger 10- Code 11- Plug 12- Band 13- Holding bracket M1U1-07-115 M1U1-07-112 M16J-07-043 7-38...
Page 331: Battery Charger Operation
MAINTENANCE Battery Charger Operation Charging the Battery Pack General Before using an electric grease gun for the first time, charge the battery pack. (for approx. 12 hours) Refer to the descriptions on "Install/remove Battery Pack" for installing the battery pack to the electric grease gun. When the battery pack is almost discharged, the battery performance sharply drops.
Page 332 MAINTENANCE Normal Charging Method After checking that the power source voltage meets the voltage shown on the battery charger specification, connect the battery charger plug to the power source. The first time the electric grease gun is used, it must be charged for 12 hours or more.
Page 333 MAINTENANCE Lubricating with the Electric Grease Gun Installing cartridge grease IMPORTANT: Take care not to allow sand and/or dust to mix in grease when installing cartridge grease (5). 1. Turn to remove oil barrel (6) from motor assembly (2). 2. Fully pull out chain (7) from oil barrel (6). Attach chain (7) to a notch on the bottom of oil barrel (6).
Page 334 MAINTENANCE Greasing Method IMPORTANT: When lubricating a closed space with grease, the motor rotation becomes slow as soon as grease is sufficiently filled in the lubrication space End greasing by releasing switch (1). If greasing is continued further, burning of the motor may result. 1.
Page 335 MAINTENANCE Warnings After Use IMPORTANT: Securely fasten the single battery charger or the battery charger with the battery pack installed to the holding bracket with a band attached to the holding bracket so that the battery charger and/or the battery pack does not come off the bracket. Failure to do so may cause the battery pack and/or battery charger to come off the holding bracket, possibly resulting in damage to the battery pack and/or battery...
Page 336: Electric Grease Gun (Lithium-Ion Battery)
MAINTENANCE Electric Grease Gun (Lithium-ion Battery) (Only ZX345US-6 class) CAUTION:  Since the electric grease gun is not a water- resistance type, avoid leaving it in a place exposed to rain and water. Do not use the electric grease gun in rain fall.
Page 337 MAINTENANCE IMPORTANT:  Do not use the attached battery charger except for charging the attached battery pack. If a battery other than the attached one is charged personal injury and damage may result due to explosion. Never attempt to charge the attached battery pack by a battery charger other than attached one under any circumstances.
Page 338: Electric Grease Gun
MAINTENANCE Electric Grease Gun Specifications Operating voltage 12 V DC Maximum operating pressure 55.1 MPa (562 kgf/cm Grease cartridge capacity 411 cc -10 to 50 ° C Operating temperature range Operating current (at pressure 6.9 MPa (70 kgf/cm ) 5 A Grease Consistency: 2 or less Grease delivery flow...
Page 339: Components Name
MAINTENANCE Components Name 1- Switch 2- Motor assembly 3- Nozzle (CNP-2) 4- Cap 5- Cartridge grease 6- Oil barrel 7- Chain (Lever) 8- Battery pack 9- Battery charger 10- Code 11- Plug MJAG-13-011 12- Band 13- Holding bracket MJAG-13-012 M16J-07-043 7-47...
Page 340: Battery Charger Operation
MAINTENANCE Battery Charger Operation Charging the Battery Pack General Before using an electric grease gun for the first time, charge the battery pack. (for approx. 12 hours) Refer to the descriptions on "Install/remove Battery Pack" for installing the battery pack to the electric grease gun. When the battery pack is almost discharged, the battery performance sharply drops.
Page 341 MAINTENANCE Normal Charging Method After checking that the power source voltage meets the voltage shown on the battery charger specification, connect the battery charger plug to the power source. The first time the electric grease gun is used, it must be charged for 12 hours or more.
Page 342 MAINTENANCE Lubricating with the Electric Grease Gun Installing cartridge grease IMPORTANT: Take care not to allow sand and/or dust to mix in grease when installing cartridge grease (5). 1. Turn to remove oil barrel (6) from motor assembly (2). 2. Fully pull out chain (7) from oil barrel (6). Attach chain (7) to a notch on the bottom of oil barrel (6).
Page 343 MAINTENANCE Greasing Method IMPORTANT: When lubricating a closed space with grease, the motor rotation becomes slow as soon as grease is sufficiently filled in the lubrication space End greasing by releasing switch (1). If greasing is continued further, burning of the motor may result. 1.
Page 344 MAINTENANCE Warnings After Use IMPORTANT: Securely fasten the single battery charger or the battery charger with the battery pack installed to the holding bracket with a band attached to the holding bracket so that the battery charger and/or the battery pack does not come off the bracket. Failure to do so may cause the battery pack and/or battery charger to come off the holding bracket, possibly resulting in damage to the battery pack and/or battery...
Page 345: Engine
MAINTENANCE B. Engine Check Engine Oil Level ---daily 1. Confirm that pilot control shut-off lever (1) is in the LOCK position. 2. Confirm that all control levers are placed in neutral. 3. Insert key (2) into the key switch. Turn it to ON position. Press and hold switch (3) with the engine stopped.
Page 346 MAINTENANCE --- Visual Inspection IMPORTANT: Incorrect engine oil level may cause trouble in the engine (The oil level should be between the upper and lower marks on dipstick (1)). Even if the engine oil level exceeds the upper limit, maintain oil to the proper level before starting the engine.
Page 347: Change Engine Oil
MAINTENANCE Change Engine Oil --- every 500 hours Replace Engine Oil Filter --- every 500 hours CAUTION: Engine oil may be hot just after operation. Take extra care to avoid burns. After refilling, make sure oil filler cap (2) is securely closed.
Page 348 MAINTENANCE IMPORTANT: Install drainer (5) to drain valve (3) slowly. 3, 4 Oil may exhaust in large quantities when suddenly tightened. 8. Remove oil filler cap (2). 9. Remove cap (4) from oil pan drain valve (3). Install drainer (5) to drain valve (3). 10.
Page 349 MAINTENANCE 14. Open the right access cover and secure the cover with rod. 15. Remove engine oil filter (6) by turning it counterclockwise with the filter wrench. 16. Clean filter (6) gasket contact area on the engine. 17. Put mew oil in from primary side (7) of new cartridge element (6) so it does not overflow.
Page 350: Sampling The Engine Oil (Only Zx225Uslc-6)
MAINTENANCE Sampling the Engine Oil (Only ZX225USLC-6) NOTE: The line is equipped with a valve (10) for sampling the engine oil. The valve has a cap (9). For instructions on sampling the engine oil, consult your authorized dealer. MDC1-07-112 7-58...
Page 351: Check And Clean Around The Engine
MAINTENANCE Check and Clean Around the Engine ----- as required IMPORTANT: Check for flammable materials in the area around the engine and clean that area. When the machine is operated in dusty areas, refer to the page 9-1 "Maintenance Under Special Environmental Conditions". Oil Separator Replace Oil Separator Element (Only ZX135US-6) ----- every 2500 hours...
Page 352: Transmission
MAINTENANCE C. Transmission Pump Transmission (Except ZX135US-6) Check Oil Level --- every 250 hours 1. Park the machine on a firm, level surface. 2. Lower the bucket to the ground. 3. Turn the auto-idle switch off. IMPORTANT: The turbocharger may be damaged if the engine is not properly shut down.
Page 353: Swing Reduction Gear
MAINTENANCE Swing Reduction Gear Check Oil Level --- every 500 hours 1. Park the machine on a solid level surface. Lower the bucket to the ground. Stop the engine. ZX135US-6 2. Turn over the level gauge rubber cover. Check level gauge (1).
Page 354: Travel Reduction Gear
MAINTENANCE Travel Reduction Gear Air Release Plug 1 CAUTION: Keep body and face away from air release (Oil Supply Plug) plug (1). Gear oil may be hot just after operation. Oil Level Check Wait for gear oil to cool and then gradually loosen air Plug 2 release plug (1) to release pressure.
Page 355 MAINTENANCE Change Gear Oil --- every 2000 hours 1. Park the machine on a firm, level surface. 2. Rotate the travel motor until the imaginary line through plug (1) and plug (3) are vertical. 3. Lower the bucket to the ground. 4.
Page 356: Hydraulic System
MAINTENANCE D. Hydraulic System Inspection and Maintenance of Hydraulic Equipment IMPORTANT: Never adjust parts of engine fuel system or hydraulic equipment. CAUTION: When checking and/or servicing the hydraulic components, pay special attention to the following points. 1. Be sure that the machine is parked on a level, firm surface before servicing hydraulic equipment.
Page 357 When using another manufacturer's hydraulic oil, be sure to change the full amount.  The new machine is filled with Hitachi Genuine Hydraulic Oil 5000 (change interval: every 5000 hours). When adding or changing the hydraulic oil, continue to use Hitachi Genuine Hydraulic Oil 5000.
Page 358 MAINTENANCE Change Hydraulic Oil and Replace Full-Flow Filter Element Hydraulic breaker operation causes the hydraulic system to become contaminated faster and quickly deteriorates the hydraulic oil. Failure to adhere to proper maintenance intervals may result in damage to the base machine and the breaker. In order to extend service life, particularly that of the hydraulic pump, change the hydraulic oil and the full-flow filter element at the specified frequency given below.
Page 359: Check Hydraulic Oil Level
MAINTENANCE Check Hydraulic Oil Level --- daily CAUTION: The hydraulic oil tank is pressurized. Push the pressure release button on the tank cap to release pressure, and carefully remove the cap. M104-07-021 IMPORTANT: Never run the engine without oil in hydraulic oil tank.
Page 360: Change Hydraulic Oil
MAINTENANCE Change Hydraulic Oil --- every 2000 hours or 5000 hours CAUTION:  Hydraulic oil may be hot just after operation. Wait for oil to cool before starting work. M104-07-117  The hydraulic oil tank is pressurized. Push pressure release button (1) on the air breather before removing the air breather.
Page 361: Sampling The Engine Oil
MAINTENANCE 12. Remove drain plug (3). Allow oil to drain. 13. Clean, install and tighten drain plug (3). 14. Add oil until it is between the marks on the oil level gauge. 15. Install cover (2). Tighten the bolts to 50 N·m (5.0 kgf·m). 16.
Page 362: Bleed Air From The Hydraulic System
MAINTENANCE Bleed Air from the Hydraulic System After changing hydraulic oil, bleed air from the hydraulic system by following the procedures below. IMPORTANT: If the hydraulic pump is not filled with oil, it will be damaged when the engine is started. Bleed air from the pump.
Page 363: Suction Filter Cleaning
MAINTENANCE Suction Filter Cleaning ---each time when hydraulic oil is changed The suction filter is located on the bottom of the hydraulic oil tank. Clean the suction filter when changing hydraulic oil. 1. After removing hydraulic oil from the hydraulic oil tank, remove cover (1) and rod assembly (2).
Page 364: Replace Full-Flow Filter
MAINTENANCE Replace Full-Flow Filter --- every 1000 hours CAUTION: Hydraulic oil becomes hot and pressurized during operation. Severe burns may result if skin comes in contact with escaping hydraulic oil just after operation. Wait for the oil to cool before starting any maintenance work.
Page 365: Replace Pilot Oil Filter
MAINTENANCE Replace Pilot Oil Filter --- every 1000 hours CAUTION: The hydraulic oil tank is pressurized. Push the pressure release button on the air breather before replacing pilot oil filter. M104-07-021 1. Park the machine on a firm, level surface. 2.
Page 366: Replace Air Breather Element
MAINTENANCE Replace Air Breather Element --- every 5000 hours CAUTION: Hydraulic oil becomes hot and pressurized during operation. Severe burns may result if skin comes in contact with escaping hydraulic oil just after operation. Wait for the oil to cool before starting any maintenance work.
Page 367: Check Hoses And Lines
MAINTENANCE Check Hoses and Lines ---daily --- every 250 hours WARNING:  Hydraulic oil and lubricant leaks can lead to fire that may result in serious injury. Check for missing or loose clamps, kinked hoses, lines or hoses that rub against each other, damaged oil cooler, and loose oil cooler flange bolts, for leaks.
Page 368 MAINTENANCE Interval Check Points Abnormalities Remedies (hours) Every 250 Hose covers Damage or leak (4) Replace hours Hose ends Damage or leak (5) Replace Hose covers Exposed reinforcement (6) Replace M115-07-146 M115-07-147 Hose covers Crack or blister (7) Replace Hose Bend (8), Collapse (9) Replace Hose ends and...
Page 369 MAINTENANCE Service Recommendations for Hydraulic Fittings Two hydraulic fitting designs are used on this machine.  Flat Face O-ring Seal Fitting (ORS Fitting) O-ring (1) is used on the sealing surfaces of adapter (2) to prevent oil leakage. Precautions for Use 1.
Page 370 MAINTENANCE  Metal Face Seal Fittings Tight contact between metal flares on adaptor (7) and metal connector (8) of hose (5) prevents pressure oil leakage. This type of fitting is used on smaller diameter joints. Precautions for Use Connect or disconnect fittings with care not to damage seat surfaces (9 and 10).
Page 371: Fuel System
MAINTENANCE E. Fuel System CAUTION: Beware of fire. Fuel is flammable. Keep fuel away from fire hazards. Recommended Fuel Use only super high quality or high quality DIESEL FUEL (JIS K-2204) (ASTM D-975) (EN-590). Kerosene must NOT be used. Using bad quality fuel, drainage agent, fuel additives, gasoline, kerosene or alcohol refueled or mixed with specified fuel may deteriorate performance of fuel filters and cause sliding problem at lubricated contacts in...
Page 372 MAINTENANCE Refueling 1. Park the machine on a level surface. Lower the bucket to the ground. Check the fuel level with fuel gauge (1). If the fuel level is low, stop the engine. Refuel by removing cap (2) on the fuel tank. 2.
Page 373: Drain Fuel Tank Sump
MAINTENANCE Drain Fuel Tank Sump --- daily 1. Park the machine on a level surface with the upperstructure rotated 90 ° for easier access. 2. Lower the bucket to the ground. 3. Turn the auto-idle switch off. M104-07-117 IMPORTANT: The turbocharger may be damaged if the engine is not properly shut down.
Page 374: Drain Fuel Pre-Filter
MAINTENANCE Drain Fuel Pre-Filter --- daily IMPORTANT: Drain fuel pre-filter daily before starting operation. The engine may be damaged if you do not drain fuel pre-filter daily. The fuel pre-filter has a water separator function. There is a float (8) inside the case which buoys when water accumulates. Check float (8) position daily.
Page 375 MAINTENANCE Bleed Air from the Fuel System Air in the fuel system may make the engine hard to start or make it run irregularly. After draining water and sediment from the fuel filter, replacing the fuel filter, cleaning the fuel solenoid pump strainer or running the fuel tank dry, be sure to bleed the air from the fuel system.
Page 376 MAINTENANCE If Air Mixed Downstream of Common Rail If air becomes mixed into the fuel system due to lack of fuel and the engine is difficult to start, release air by following the procedure below. 1. Following the above mentioned procedures, bleed enough air up to the engine supply pump entrance.
Page 377: Replace Fuel Main Filter Element
Main Filter IMPORTANT:  Be sure to use only genuine Hitachi elements for the fuel main filter element and the pre-filter element. Failure to do so may deteriorate the engine performance and/or shorten the engine service life.
Page 378 MAINTENANCE 2. Place 1 liter or larger capacity container under the drain hose. 3. Rotate the bottom of filter element (2) counterclockwise by using a spanner to remove filter element (2) from head cover (3). 4. Apply a thin layer of fuel to the cartridge gasket (O-ring). Main Filter 5.
Page 379: Replace Fuel Pre-Filter Element
Replace Fuel Pre-Filter Element --- every 1000 hours IMPORTANT:  Be sure to use only genuine Hitachi elements. Failure to do so may deteriorate the engine performance and/or shorten the engine service life. Please be noted that all engine failures caused by using other manufacturers' elements are excluded from Hitachi Warranty Policy.
Page 380 MAINTENANCE 2. Place 1 liter or larger capacity container under drain hose (3) to collect the drained water. 3. Loosen air bleed plug (1) and drain plug (2) to drain fuel until fuel does not flow out of the filter. After draining fuel, remove drain plug (2) and replace O-ring.
Page 381: Check Fuel Hoses
MAINTENANCE Check Fuel Hoses ---daily --- every 250 hours CAUTION: Fuel leaks can lead to fires that may result in serious injury.  Escaping combustible fluid can cause fires. Check for kinked hoses, hoses that rub against each other, and any fuel leaks.
Page 382: Air Cleaner
MAINTENANCE F. Air Cleaner Clean and Replace Air Cleaner Element (Outer) Clean --- every 250 hours or when the restriction indicator comes ON Replace --- after cleaning 6 times or after one year CAUTION: When using compressed air pressure (less than 0.69 MPa (7 kgf/cm )), dust may scatter.
Page 383 MAINTENANCE 3. At this time, do not remove the inner element. IMPORTANT: Do not hit or strike outer element (1) against another object to clean the element. 4. To clean outer element (1), blow compressed air (0.69 MPa (7 kgf/cm ) or less) from the inside towards the outside, following the direction of the pleats.
Page 384: Replace Air Cleaner Element (Inner)
MAINTENANCE Replace Air Cleaner Element (Inner) Replace --- When outer element is replaced Air Cleaner Restriction Alarm Switch IMPORTANT: Do not clean and reuse the inner element. 1. After removing outer element (1), clean inside the air Cover cleaner body (2) with a clean cloth before removing inner element (3).
Page 385: Cooling System
Hitachi Long-Life Coolant (LLC) mixed by 30 to 50 %. If a coolant mixed with less than 30 % of Hitachi Long-Life Coolant is used, service life of the cooling parts may be shortened due to damage by freezing or corrosion of coolant system parts.
Page 386: Check Coolant Level
MAINTENANCE Check Coolant Level --- daily 1. Confirm that pilot control shut-off lever (1) is in the LOCK position. 2. Confirm that all control levers are placed in neutral. 3. Insert key switch (2). Turn it to ON position. Press and hold switch (3) with the engine stopped.
Page 387 MAINTENANCE --- Visual Inspection The coolant level must be between the FULL (3) and LOW (4) marks on expansion tank (2). If the coolant level is below the LOW (4) mark, remove cap (1) from expansion tank (2) and refill coolant. CAUTION: Do not remove cap (1) until the coolant temperature in the radiator becomes cool.
Page 388: Check And Adjust Fan Belt Tension
MAINTENANCE Check and Adjust Fan Belt Tension --- every 250 hours (first time after 50 hours) 7 to 8 mm 98 N (10 kgf) Fan Pulley ZX135US-6 Alternator IMPORTANT: Loose fan belt may result in insufficient Pulley battery charging, engine overheating, as well as a rapid, abnormal belt wear.
Page 389 MAINTENANCE ZX225USLC-6, 345USLC-6 5 to 6 mm 98 N (10 kgf) Fan Pulley IMPORTANT: Loose fan belt may result in insufficient battery charging, engine overheating, as well as premature belt wear. A belt that is too tight can damage both water pump/alternator bearings as well Alternator Pulley as the belt.
Page 390: Change Coolant
MAINTENANCE Change Coolant --- twice a year (in spring and autumn) NOTE: When genuine Hitachi Long-Life Coolant is used, change interval is once every two years (in autumn every other year) or every 4000 hours whichever comes first. CAUTION: Do not loosen the cap on the expansion tank when coolant temperature in the radiator is high.
Page 391 MAINTENANCE 5. Close the radiator drain cock (1). Fill the radiator with tap water and LLC at the specified mixing ratio. When adding coolant, do so slowly to avoid mixing air bubbles in the system. Fill coolant in the expansion tank until its level reaches the upper limit line.
Page 392: Clean Radiator/Oil Cooler/Inter Cooler Core
MAINTENANCE Clean Radiator/Oil Cooler/Inter Cooler Core Inter Cooler Outside --- every 500 hours Inside --- once a year CAUTION: Use reduced compressed air pressure (Less than 0.2 MPa, 2 kgf/cm ) for cleaning purposes. Wear personal protection equipment including eye protection.
Page 393 MAINTENANCE WARNING:  Entanglement in moving parts can cause serious injury.  Before servicing, stop the engine and the fan to prevent any accident.  Never attempt to start the engine when the cover is open.  In case tools or parts are dropped into the radiator/ oil cooler/inter cooler core, remove them before starting the engine.
Page 394: Clean Oil Cooler, Radiator And Inter Cooler Front Screen
MAINTENANCE Clean Oil Cooler, Radiator and Inter Cooler Front Screen --- every 500 hours IMPORTANT: Check the screen daily and clean it if necessary when the machine is operated in dusty areas. Pull the clip lever on the screen to remove the screen. Insert the clip into the cover hole and turn over the clip lever to hold the screen.
Page 395: Drain Intercooler (Only Zx135Us-6)
MAINTENANCE Drain Intercooler (only ZX135US-6) --- after operation (If there is a risk of freezing) IMPORTANT:  Condensate may accumulate inside the intercooler under some conditions of use.  Freezing of condensate may cause damage to the intercooler. If there is a risk of freezing, drain after operating the machine.
Page 396: Electrical System
MAINTENANCE H. Electrical System WARNING:  Improper radio communication equipment and associated parts, and/or improper installation of radio communication equipment affects the machine's electronic parts, causing involuntary movement of the machine.  Improper installation of electrical equipment may cause machine failure and/or a fire on the machine. ...
Page 397: Battery
MAINTENANCE Battery WARNING:  Battery gas can explode. Keep sparks and flames away from batteries.  Do not leave cover (1) removed. Do not keep tools, metals or flammable materials around the battery or inside the battery room. If a metal tool is placed across the battery terminal and a vehicle component such as the engine block, sparks may be created, SA-032...
Page 398 MAINTENANCE Precautions for Handling Batteries  If electrolyte spills on your skin and/or clothes, immediately flush the skin and/or clothes with water and then wash further with soap. If splashed in eyes, flush with water for approximately 15 minutes and seek immediate medical attention. ...
Page 399 MAINTENANCE Electrolyte Level Check --- monthly Check the electrolyte level at least once a month. 1. Park the machine on level ground and stop the engine. 2. Check the electrolyte level. 2.1 When checking the level from the battery side: Clean around the level check lines with a wet towel.
Page 400: Replace Battery
MAINTENANCE 3. Always keep the area around the battery terminals clean to prevent battery discharge. Check terminals for loose and/or rust. Check terminals for loose and/or rust. Coat terminals with grease or petroleum jelly to prevent corrosion build Replace Battery IMPORTANT: Turn the battery disconnect switch to OFF M409-07-072 before replacing the battery.
Page 401: Check Electrolyte Specific Gravity
MAINTENANCE Check Electrolyte Specific Gravity --- every one month If you spill acid on yourself: 1. Flush your skin with water. WARNING: Battery gas can explode. Keep sparks and flames away from batteries. Use a flashlight to check 2. Apply baking soda or lime to help neutralize the battery electrolyte level.
Page 402: Replacing Fuses
MAINTENANCE Replacing Fuses --- as necessary If any electrical equipment fails to operate, first check the fuses. Fuse box is located behind the operator's seat. NOTE:  One spare fuse for each respective fuse capacity is provided in the fuse box. ...
Page 403: Fuse Box
MAINTENANCE Fuse Box 10- CONTROLLER 20- OPT.3 (ALT) 9- BACKUP 19- HORN 10 A 10 A 8- ECU 18- IDLE STOP 30 A 7- START 17- POWER ON 6- OPT.2 (ALT) 16- GLOW RELAY MDCN-01-010 20 A Spare Fuses 5- OPT.1 (ALT) 15- AUX 10 A 4- SOLENOID...
Page 404 MAINTENANCE  Fusible Link (Main Fuse) In case the starter will not rotate even if the key switch is turned to the START position, fusible link may be the cause of the trouble. Remove the cover next to the battery to check the fusible link.
Page 405: Miscellaneous
MAINTENANCE I. Miscellaneous Check and Replace Bucket Teeth --- daily Check bucket teeth (1) for wear and looseness. Replace teeth (1) if tooth wear exceeds the designated service limit shown below. A mm Model Limit of Use ZX135US-6 M104-07-056 ZX225USLC-6 ZX345USLC-6 Replace CAUTION:...
Page 406 MAINTENANCE 3. Clean shank (6) surface. 4. Install lock rubber (4) into shank (6) hole as shown. RIGHT WRONG M104-07-060 5. Position new tooth (1) over shank (6). RIGHT WRONG M104-07-061 6. Drive lock pin (5) fully into the hole as shown. RIGHT WRONG M104-07-062...
Page 407: Change Bucket
MAINTENANCE Change Bucket CAUTION: When driving the connecting pins in or out, guard against injury from flying pieces of metal or debris. Wear goggles or safety glasses, hard hat and face shield. Before starting the conversion work, keep bystanders clear of the machine.
Page 408: Convert Bucket Connection Into Face Shovel
MAINTENANCE Convert Bucket Connection Into Face Shovel O-Ring Shift CAUTION: When driving the connecting pins in or out, guard against injury from flying pieces of metal or debris. Wear goggles or safety glasses, hard hat and face shield. Converting the bucket connection allows you to use the Bucket Boss machine as a face shovel.
Page 409: Adjust Bucket Linkage
MAINTENANCE Adjust Bucket Linkage --- as required The machine is provided with a bucket adjustment system to take up play in the linkage. When play in the linkage increases, remove and install shims (2) as follows: Clearance Adjust Part 1. Place the bucket in a stable position. 2.
Page 410: Remove Travel Levers
MAINTENANCE Remove Travel Levers --- as required Travel levers (3) and (4) may be removed if desired. Procedure: Remove bolts (1) and (2) to remove travel levers (3) and (4) from brackets. NOTE: Wrench size: 17 mm Tightening Torque: 50 N·m (5.0 kgf·m) M178-07-077 Check and Replace Seat Belt Check --- daily...
Page 411: Check Windshield Washer Fluid Level
MAINTENANCE Check Windshield Washer Fluid Level --- as required Check fluid in windshield washer tank (1). If the fluid level is low, remove cap (2) and add fluid via the opening. MDAT-07-032 ZX135US-6 MDCN-07-056 ZX225USLC-6 ZX345USLC-6 MDD5-07-021 7-119...
Page 412: Check Track Sag
MAINTENANCE Check Track Sag --- every 50 hours If the amount of sag is inappropriate, the tracks may flap around or come off. This in turn may damage the track itself and other parts. As such issues will have an effect on the lifetime of the machine, be sure to adjust the sag of the tracks to a suitable amount.
Page 413 MAINTENANCE Simple Method 1. Remove any deposits on mating parts of the tracks and undercarriage (top/bottom rollers, idler, sprockets). IMPORTANT: Accurate measurements cannot be taken if there are deposits on mating parts of the tracks and undercarriage (top/bottom rollers, idler, sprockets). 2.
Page 414 MAINTENANCE Loosen the Track ZX135US-6 CAUTION:  The pressure inside the cylinder of the track adjuster is high. Do not loosen valve (1) quickly or loosen it too much as valve (1) may fly out or high-pressure grease in the adjusting cylinder may spout out. Slowly loosen valve (1) while keeping body parts and face away from valve (1).
Page 415 MAINTENANCE ZX225USLC-6, 345USLC-6 CAUTION:  The pressure inside the cylinder of the track adjuster is high. Do not loosen valve (1) quickly or loosen it too much as valve (1) may fly out or high-pressure grease in the adjusting cylinder may spout out. Slowly loosen valve (1) while keeping body parts and face away from valve (1).
Page 416 MAINTENANCE Tighten the Track CAUTION: It is abnormal if the track can not be adjusted. The strong force acts on the spring in track adjuster. Therefore, the grease in cylinder is highly pressurized. In such cases, NEVER ATTEMPT TO DISASSEMBLE the track or track adjuster, because of dangerous high-pressure grease inside the track adjuster.
Page 417: Clean And Replace Air Conditioner Filter
MAINTENANCE Clean and Replace Air Conditioner Filter Clean Circulating/Fresh Air Filters Circulating Air Filter --- every 500 hours Fresh Air Filter --- every 500 hours Replace Circulating/Fresh Air Filters Circulating Air Filter --- After cleaning 6 times or so Fresh Air Filter --- After cleaning 6 times or so MDCN-07-009 ZX135US-6 Removing Fresh Air Filter...
Page 418 MAINTENANCE Removing Circulating Air Filter (Outside) ZX135US-6, 225USLC-6 1. Circulating air filter (outside) (1) is located beside the seat stand. 2. Remove screws (2). Remove circulating air filter (outside) cover (3) by pulling it toward the cab front. 3. Remove screws (4). Remove circulating air filter (outside) (1) by sliding it to the arrow direction.
Page 419 MAINTENANCE WARNING: When using compressed air pressure, wear safety glasses or goggles. Cleaning Arrow-mark Clean the circulating and fresh air filters. Clean both the external and internal filters by blowing compressed air or washing with water. Washing procedure with water is as follows: 1.
Page 420: Check Air Conditioner
MAINTENANCE Check Air Conditioner --- every 250 hours Oil Seepage Check pipe connections for refrigerant gas leakage If oil seepage is found around pipe connections, it indicates Detail possible gas leakage. Check Refrigerant M1CD-07-038 Start the engine and run it at approximately 1500 min −1 (rpm).
Page 421 MAINTENANCE Inspect belt, check and adjust tension Tension Pulley --- every 250 hours Compressor Pulley Fan Pulley Visually check the compressor and fan belts for wear. Check fan belt tension by depressing the midpoint of the belt with the thumb. Deflection must be shown in the right figure with a depressing force of approximately 98 N (10 kgf ).
Page 422: Clean Cab Floor
MAINTENANCE Clean Cab Floor --- as required IMPORTANT: When cleaning the cab floor with tap water, spray the floor only. Take care not to splash the surrounding area. Do not increase water spray speed by restricting the hose end, and do not use high pressure steam for cleaning.
Page 423: Retighten Cylinder Head Bolt
MAINTENANCE Retighten Cylinder Head Bolt --- as required See your authorized dealer. Inspect and Adjust Valve Clearance --- every 1000 hours See your authorized dealer. Measure Engine Compression Pressure --- every 1000 hours See your authorized dealer. Check Starter and Alternator --- every 1000 hours See your authorized dealer.
Page 424: Check And Clean Injector
MAINTENANCE Check and Clean Injector --- as required See your authorized dealer. Check Gas Damper --- as required CAUTION: The gas damper has been charged with high-pressure nitrogen gas. Inappropriate handling may cause explosion, possibly resulting in serious injury or death. Gas dampers are used in the overhead window of the cab.
Page 425 MAINTENANCE ZX135US-6 Torque Descriptions Bolt Dia Quantity Wrench size N·m (kgf·m) Engine cushion rubber mounting bolt and nut (23.5) Engine bracket mounting bolt (Pump side) (11) Hydraulic oil tank mounting bolt (27) Fuel tank mounting bolt (27) Radiator mounting bolt (Lower side) (9.0) Pump mounting bolt (11)
Page 426 MAINTENANCE ZX225USLC-6 Torque Descriptions Bolt Dia Quantity Wrench size N·m (kgf·m) Engine cushion rubber mounting bolt and nut (55) Engine bracket mounting bolt (Pump side) (27) Engine bracket mounting bolt (Fan side) (6.5) Hydraulic oil tank mounting bolt (27) Fuel tank mounting bolt (27) Radiator mounting bolt (Left and right) (5.0)
Page 427 MAINTENANCE ZX345USLC-6 Torque Wrench Descriptions Bolt Dia Quantity size N·m (kgf·m) (lbf·ft) Engine cushion rubber mounting bolt and nut (55) (410) Engine bracket mounting bolt (Pump side) (11) (81) Engine bracket mounting bolt (Fan side) (6.5) (48) Hydraulic oil tank mounting bolt (27) (200) Fuel tank mounting bolt...
Page 428 MAINTENANCE Tightening Torque Chart Hexagon Wrench Socket Bolt Bolt Dia. Wrench Wrench Socket Bolt size size N·m (kgf·m) N·m (kgf·m) N·m (kgf·m) N·m (kgf·m) 3.3 to 4.2 (0.3 to 0.4) (3.0) (2.0) (1.0) (2.0) (6.5) (5.0) (2.0) (5.0) (11) (9.0) (3.5) (9.0) (18)
Page 429 MAINTENANCE 1. Engine cushion rubber mounting bolts and nuts Pump Side M1U1-07-040 ZX225USLC-6, 345USLC-6 M1U4-07-046 ZX135US-6 Fan Side M1U1-07-034 ZX225USLC-6, 345USLC-6 2. Engine bracket mounting bolts Pump Side M1U1-07-040 Fan Side M1U1-07-034 ZX225USLC-6, 345USLC-6 7-137...
Page 430 MAINTENANCE 3. Hydraulic oil tank mounting bolts ZX135US-6 MDCN-07-064 MDCN-07-065 ZX225USLC-6 MDD5-07-022 ZX345USLC-6 7-138...
Page 431 MAINTENANCE 4. Fuel tank mounting bolts MDCN-07-064 ZX135US-6 MDCN-07-065 ZX225USLC-6 ZX345USLC-6 MDD5-07-022 7-139...
Page 432 MAINTENANCE 5. Radiator mounting bolts MDCN-07-066 ZX135US-6 MDCN-07-067 ZX225USLC-6 ZX345USLC-6 MDD5-07-023 ZX345USLC-6 MDD5-07-024 7-140...
Page 433 MAINTENANCE 6. Pump mounting bolts ZX135US-6 M1U4-07-050 ZX225USLC-6 M1U1-07-021 MDAA-07-110 ZX345USLC-6 7-141...
Page 434 MAINTENANCE 7. Control valve mounting bolts M1U4-07-051 ZX135US-6 MDCN-07-068 ZX225USLC-6 ZX345USLC-6 MDD5-07-025 7-142...
Page 435 MAINTENANCE Control valve bracket mounting bolts M1U4-07-051 ZX135US-6 MDCN-07-068 ZX225USLC-6 ZX345USLC-6 MDD5-07-025 7-143...
Page 436 MAINTENANCE 8. Swing device mounting bolts MDCN-07-018 ZX135US-6 MDCN-07-069 ZX225USLC-6 ZX345USLC-6 MDD5-07-026 7-144...
Page 437 MAINTENANCE 9. Swing motor mounting bolts MDCN-07-018 ZX135US-6 MDCN-07-069 ZX225USLC-6 ZX345USLC-6 MDD5-07-026 7-145...
Page 438 MAINTENANCE 10. ORS fittings for hydraulic hoses and piping M104-07-079 11. Hycolin® tube mounting nuts M1U1-07-111 ZX135US-6 MDCN-07-071 ZX225USLC-6 ZX345USLC-6 MDD5-07-027 7-146...
Page 439 MAINTENANCE 12. Battery mounting nuts ZX135US-6 MDAT-07-033 ZX225USLC-6 MDAT-07-034 ZX345USLC-6 MDD5-07-028 7-147...
Page 440 MAINTENANCE 13. Cab mounting nuts M1U1-07-026 Cab mounting anchor bolt ZX135US-6, 225USLC-6 MDCN-07-073 ZX345USLC-6 M1U1-07-054 Cab cushion rubber mounting bolt MDC1-07-052 7-148...
Page 441 MAINTENANCE 14. Cover mounting bolts ZX135US-6, 225USLC-6 MDAT-07-035 ZX345USLC-6 MDD5-07-011 15. Constant torque clamp of low pressure piping ZX135US-6 MDAT-07-060 ZX345USLC-6 MDD5-07-029 ZX225USLC-6 MDAT-07-078 7-149...
Page 442 MAINTENANCE Flexible master coupling of low pressure piping ZX345USLC-6 MDD5-07-030 MDAT-07-062 ZX225USLC-6 T-bolt clamp of low pressure piping ZX135US-6 ZX135US-6 MDAT-07-064 MDAT-07-063 ZX225USLC-6 MDAT-07-062 MDAT-07-065 ZX225USLC-6 MDD5-07-030 ZX345USLC-6 7-150...
Page 443 MAINTENANCE Jubilee® clamp of low pressure piping MDAT-07-064 ZX135US-6 MDAT-07-068 ZX135US-6 MDAT-07-067 ZX135US-6 ZX225USLC-6 MDAT-07-069 MDAT-07-065 ZX225USLC-6 MDAT-07-061 ZX225USLC-6 7-151...
Page 444 MAINTENANCE 16. Swing bearing mounting bolts Upperstructure Side M107-07-088 Undercarriage Side ZX135US-6 M1U1-07-113 M107-07-089 Undercarriage Side ZX225USLC-6, 345USLC-6 7-152...
Page 445 MAINTENANCE 17. Travel device mounting bolts M164-07-005 Travel reduction gear cover mounting bolts MDFY-07-035-1 Sprocket mounting bolts M154-07-050 18. Upper roller mounting bolts M157-07-224 7-153...
Page 446 MAINTENANCE 19. Lower roller mounting bolts M107-07-092 20. Track shoe mounting bolts M107-07-093 7-154...
Page 447 MAINTENANCE 21. Track guard mounting bolts MDAA-07-058 22. Aftertreatment device mounting bolts Back plate MDC1-07-075 ZX135US-6 Base plate MDC1-07-076 ZX135US-6 ZX345USLC-6 MDC1-07-049 MDAT-07-037 ZX225USLC-6 7-155...
Page 448 MAINTENANCE 23. DEF/AdBlue® tank bracket mounting bolts MDAT-07-038 ZX135US-6 ZX345USLC-6 MDD5-07-032 MDAT-07-039 ZX225USLC-6 24. Platform handrail mounting bolt MDAT-07-040 ZX135US-6 MDD5-07-033 MDAT-07-041 ZX345USLC-6 ZX225USLC-6 7-156...
Page 449 MAINTENANCE 25. Body top handrail mounting bolt MDAT-07-042 ZX135US-6 MDAT-07-041 ZX225USLC-6 ZX345USLC-6 MDD5-07-034 7-157...
Page 450 MAINTENANCE 26. Cab top handrail mounting bolt MDAT-07-080 ZX135US-6 MDAT-07-081 ZX225USLC-6 ZX345USLC-6 MDC1-07-077 7-158...
Page 451 MAINTENANCE 27. Front pin-retaining bolt MDCS-07-004 MDAT-07-082 ZX135US-6 ZX345USLC-6 MDD5-07-035 MDAT-07-083 ZX225USLC-6 7-159...
Page 452 MAINTENANCE Boom top, Arm cylinder bottom and rod pin-retaining bolt (There are three bolts on the boom top.) ZX345USLC-6 MDCA-07-001 7-160...
Page 453: Aftertreatment Device
MAINTENANCE J. Aftertreatment Device Check and Clean Aftertreatment Device --- as required Aftertreatment Device IMPORTANT:  Check and clean flammable materials on the area around the Aftertreatment device.  Condensation for dew may blow out from exhaust outlet (1) of the afterfreatment device and black deposition may be observed;...
Page 454: Urea Scr System
MAINTENANCE K. Urea SCR System WARNING: Fill specified DEF/AdBlue® into the DEF/ AdBlue® tank. If improper DEF/AdBlue® is refilled, fire or system failure may result. If improper liquid is refilled in the DEF/AdBlue® tank, consult your authorized dealer for check or repair. Specified DEF/AdBlue®...
Page 455 MAINTENANCE CAUTION:  DEF/AdBlue® is colorless and harmless solution. It is harmless when contacting with the body, however, it may cause skin to become inflamed depending on the constitution of the individual. Flush DEF/AdBlue® with clean water when it contacts on the skin. ...
Page 456: Check Def/Adblue
MAINTENANCE Check DEF/AdBlue® ---daily Park the machine on a level surface. Lower the bucket to the ground. Check the DEF/AdBlue® level with DEF/AdBlue® gauge (1). If necessary, stop the engine and add DEF/AdBlue®. Refill DEF/AdBlue® CAUTION:  Refill DEF/AdBlue® which meets Japanese Industrial MDC1-01-001 Standards (JIS K2247), International Organization for Standardization (ISO 22241) or Deutsche Industrie...
Page 457 MAINTENANCE 4. Remove cap (3) from DEF/AdBlue® tank (2) and refill DEF/ AdBlue®. Be sure to stop refilling before the “F” line by checking the level gauge (4) float. IMPORTANT:  Make sure the containers and equipment used for refilling and free of contaminants, such as sand, mud and dirt.
Page 458 MAINTENANCE 5. Install cap (3) after refilling DEF/AdBlue®. Close the tank cover and lock it with the key. IMPORTANT:  Do not get on top of DEF/AdBlue® tank (2) or sensors and piping on the tank. Failure to do so may damage the machine.
Page 459: Clean Filler Port Strainer
MAINTENANCE Clean Filler Port Strainer Strainer (1) is provided on the filler port of the DEF/AdBlue® tank. Clean strainer (1) if dirt or dust is observed. CAUTION: Wear safety equipment such as safety glasses or goggles, rubber gloves appropriate to the job.
Page 460: Change Def/Adblue
MAINTENANCE Change DEF/AdBlue® CAUTION: Wear safety equipment such as safety glasses or goggles, rubber gloves appropriate to the job. Wash DEF/AdBlue® with clean water when it contacts with the skin. If DEF/AdBlue® is accidentally splashed into eyes, flush with water for 15 minutes or longer and get emergency medical attention.
Page 461: Replace Def/Adblue® Supply Module Main Filter
MAINTENANCE Replace DEF/AdBlue® Supply Module Main Filter --- every 4500 hours A filter (4) is mounted in the DEF/AdBlue® pump. Periodically replace filter (4). CAUTION: Wear safety equipment such as safety glasses or goggles, rubber gloves appropriate to the job. Wash DEF/AdBlue® with clean water when it contacts with the skin.
Page 462 MAINTENANCE NOTE: The DEF/AdBlue® pump is located bottom of the machine, near the engine. 2. Remove bolts (1) and cover (2). 3. Remove cap (3) from the DEF/AdBlue® pump by using a 27 mm bihexagon wrench. 4. Pull out filter (4) inside the pump. As it is tightly mounted, it can not be pulled by hands.
Page 463: Replace Def/Adblue® Tank Water Supply Inlet Filter
MAINTENANCE Replace DEF/AdBlue® Tank Water Supply Inlet Filter --- every 4500 hours or if DEF/AdBlue® overflows when supplying water IMPORTANT: Replace the filter without cleaning. Reusing after cleaning may cause a malfunction. The filter inside the water supply inlet of the DEF/AdBlue® tank must be replaced periodically.
Page 464: Replace The Def/Adblue® Back Flow Line Filter
MAINTENANCE Replace the DEF/AdBlue® back flow line filter --- every 4500 hours IMPORTANT: Replace the filter without cleaning. Reusing after cleaning may cause a malfunction. There is a circuit returning DEF/AdBlue® from the DEF/ AdBlue® supply module to the DEF/AdBlue® tank. This circuit is equipped with a back flow filter.
Page 465: Aerial Angle
MAINTENANCE L. Aerial Angle Daily Checks of Aerial Angle Camera Images --- daily (Before Starting the Engine) Method of Checking 1. Turn key switch (1) to the ON position. MDCD-01-030 2. Press screen changeover switch (3) and make sure the image on main monitor (2) changes.
Page 466: Checking Aerial Angle Camera Images
MAINTENANCE Checking Aerial Angle Camera Images --- Whenever work that affects the camera installation position is done IMPORTANT: It may be necessary to reconfigure the camera composition if work is done that affects camera installation position (such as removing/installing MDCD-01-030 camera brackets, counterweights or replacing a camera).
Page 467: Maintenance Under Special Environmental Conditions
Reinforce the bucket before using it, or use a heavy duty bucket. Falling Stones Cab Head Guard : Provide a cab guard to protect the machine from falling stones. Consult your nearest Hitachi dealer. Freezing Weather Fuel/Lubricant : Use high quality and low viscosity fuel and oil.
Page 468 MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS MEMO ..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 469: Storage
STORAGE Storing the Machine In case the machine is to be stored for longer than one month, pay attention to the following points to in preparation for the next operation. Precautions for Long-Term Storage Item Remedy Machine Cleaning Wash the machine. Remove soil or other debris adhered to the machine. Lubrication/Greasing Check level of lubricant and contamination.
Page 470 STORAGE MEMO ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................10-2...
Page 471 TROUBLESHOOTING Troubleshooting If any machine trouble has occurred, immediately repair it. Make certain the cause of the trouble and take necessary measures to prevent the reoccurrence of the same trouble. In case troubleshooting is difficult, or measures marked with * must be taken, consult your authorized dealer. Never attempt to adjust, disassemble, or repair the hydraulic and/or electrical/electronic parts/components.
Page 472 TROUBLESHOOTING Impossible to Start the Engine Problem Cause Solution Starter does not rotate or is not Discharged battery Charge or replace battery. powerful. Disconnected, loose, or corroded battery After repairing the corroded terminals area, securely tighten the connectors. Lowered pilot control shut-off lever. Pull pilot control shut-off lever Disconnected, loose, or corroded starter After repairing the corroded...
Page 473 TROUBLESHOOTING Control Lever Problem Cause Solution Lever is heavy to operate. Rusted joint * Lubricate or repair Worn pusher * Replace Does not move smoothly. Worn pusher * Repair or replace Faulty pilot valve * Replace Does Not Return to Neutral. Faulty pilot valve * Replace The lever is tilted in the neutral position...
Page 474 TROUBLESHOOTING Hydraulic System When the machine is stored without operation, air mixed in hydraulic oil will become separated and will accumulate in the cylinder upper sections, causing a delay in the response time of the machine movement or weak power development.
Page 475 TROUBLESHOOTING Problem Cause Solution Only one actuator is inoperable. Broken control valve spool * Replace Embedded foreign matter in valve spool * Repair or replace Broken pipe and/or hose * Repair or replace Loose pipe line joint Retighten Broken O-ring at pipe line joint * Replace Broken actuator * Repair or replace...
Page 476 TROUBLESHOOTING Drive Function Problem Cause Solution One or both side tracks are inoperable. Damaged center joint * Repair or replace Incompletely released parking brake * Repair or replace Broken travel motor * Repair or replace Faulty pilot valve * Replace Faulty pilot circuit line * Repair or replace Does not travel smoothly.
Page 477 TROUBLESHOOTING Swing Function Problem Cause Solution Upperstructure does not swing. Faulty swing parking brake * Repair or replace Faulty swing parking brake release valve * Repair or replace Broken swing motor * Repair or replace Faulty pilot valve * Replace Faulty pilot circuit line * Repair or replace Swing is not smooth.
Page 478 TROUBLESHOOTING Engine Speed Problem Cause Solution Even if operating the engine control Blown fuse Replace dial, the engine speed does not Faulty engine control dial * Replace change. Poor contact in connector * Repair or replace Damaged wire harness (between EC dial and * Repair MC, or MC and ECM) Faulty controller (MC, ECM)
Page 479 SPECIFICATIONS Specifications ZX135US-6 MDAT-12-011 Model ZX135US-6 Type of Front-End Attachment 2.52 m Arm Bucket Capacity (Heaped) PCSA 0.50 m , CECE 0.45 m Counterweight Weight 3520 kg Operating Weight 13800 kg Base Machine Weight 11100 kg Engine Type Isuzu AR-4JJ1XASA-02 Engine Power ISO 14396: 74.9 kW/2000 min (102 PS/2000 rpm)
Page 480 SPECIFICATIONS Working Ranges (Grouser shoe) ZX135US-6 MDAT-12-002 3.01 m Arm Category Backhoe Item A: Maximum Digging Reach 8860 B: Maximum Digging Depth 5980 C: Maximum Cutting Height 9690 D: Maximum Dumping Height 7220 E: Overall Height *2780 F: Overall Length 7390 G: Minimum Swing Radius 2450...
Page 481 SPECIFICATIONS Shoe Types and Applications ZX135US-6 500 mm 600 mm 700 mm Shoe Width Grouser Shoe Grouser Shoe Grouser Shoe For Ordinary For Weak Footing For Weak Footing Application Ground (Option) (Option) (Standard) Operating Weight 13800 14100 14300 Base Machine Weight 11100 11400 11700...
Page 482: Bucket Types And Applications
SPECIFICATIONS Bucket Types and Applications ZX135US-6 Bucket Capacity Bucket Width Front-End Attachment Bucket Without PCSA CECE With Side 3.01 m Side (Heaped) (Heaped) Cutters Cutters 0.19 0.17  0.30 0.25  0.40 0.33  Hoe Bucket 0.45 0.40  0.50 0.45 1010 *...
Page 483 SPECIFICATIONS Specifications ZX225USLC-6 MDAT-12-007 Model ZX225USLC-6 Type of Front-End Attachment 2.91 m Arm Bucket Capacity (Heaped) PCSA 0.80 m , CECE 0.70 m Counterweight Weight 7280 kg Operating Weight 17200 kg Base Machine Weight 13700 kg Engine Type Isuzu AR-4HK1XASA-12 Engine Power ISO 14396: 122 kW/2000 min (166 PS/2000 rpm)
Page 484: Working Ranges (Grouser Shoe)
SPECIFICATIONS Working Ranges (Grouser shoe) ZX225USLC-6 MDAT-12-008 2.42 m Arm 2.91 m Arm Category Backhoe Backhoe Item A: Maximum Digging Reach 9620 10110 B: Maximum Digging Depth 6120 6620 C: Maximum Cutting Height 10790 11230 D: Maximum Dumping Height 7870 8290 E: Overall Height 3230...
Page 485: Shoe Types And Applications
SPECIFICATIONS Shoe Types and Applications ZX225USLC-6 600 mm 700 mm 800 mm Shoe Width Grouser Shoe Grouser Shoe Grouser Shoe For Ordinary Ground For Weak Footing For Weak Footing Application (Standard) (Option) (Option) Operating Weight 25000 25400 25700 Base Machine 20500 21000 21200...
Page 486: Bucket Types And Applications
SPECIFICATIONS Bucket Types and Applications ZX225USLC-6 Bucket Capacity Bucket Width Front-End Attachment Bucket mm (in) Application PCSA CECE 2.42 m 2.91 m (With side cutter) (Heaped) (Heaped) 0.51 0.45   0.80 HD 1150   0.80 1140   Hoe Bucket 0.91 1260...
Page 487 SPECIFICATIONS Specifications ZX345USLC-6 MDD5-12-001 Model ZX345USLC-6 Type of Front-End Attachment 3.11 m Arm Bucket Capacity (Heaped) PCSA 1.25 m , CECE 1.10 m Counterweight Weight 8680 kg Operating Weight 36300 kg Base Machine Weight 21200 kg Engine Type Isuzu AQ-6HK1XASA-02S Engine Power ISO 14396: 186 kW/1900 min-1(253 PS/1900 rpm) A : Overall Width (Excluding back mirrors)
Page 488: Working Ranges
SPECIFICATIONS Working Ranges ZX345USLC-6 Backhoe MDD5-12-002 3.11 m Arm 3.76 m Arm Category Backhoe Backhoe Item A : Maximum Digging Reach 10900 11460 B : Maximum Digging Depth *6920 *7570 C : Maximum Cutting Height *11410 *11690 D : Maximum Dumping Height *8380 *8670 E : Overall Height...
Page 489: Shoe Types And Applications
SPECIFICATIONS Shoe Types and Applications ZX345USLC-6 600 mm 700 mm 800 mm Shoe Width Grouser Shoe Grouser Shoe Grouser Shoe For Ordinary Ground For Weak Footing For Weak Footing Application (Standard) (Option) (Option) Operating Weight 36300 36900 37300 Base Machine Weight 21200 21800 22200...
Page 490: Bucket Types And Applications
SPECIFICATIONS Bucket Types and Applications ZX345USLC-6 Bucket Capacity Front-End Attachment Bucket Width mm Bucket Application PCSA CECE (With side cutter) 3.11 m 3.76 m (Heaped) (Heaped) 1.00 0.90 1260   1.25 1.10 1490   Hoe Bucket 1.40 1.20 1630 ...
Page 491: Optional Attachments And Devices
OPTIONAL ATTACHMENTS AND DEVICES PAD CRAWLER SHOE Using Pad Crawler Shoe Pad crawler is a track link on which a rubber pad is installed so the machine does not damage road surfaces when traveling. Be sure to observe all precautions for handling pad crawler. Avoid operating the machine in the following conditions: Forbidden Operations Do not operate on sharp, rocky, uneven surfaces, such as...
Page 492: Traveling And Other Cautions
After raising one side track with the front attachment, slowly lower the pad crawler equipped machine. If the pad crawler becomes severely damaged, contact your nearest Hitachi Dealer for replacement. 13-2...
Page 493: Transporting
OPTIONAL ATTACHMENTS AND DEVICES PAD CRAWLER SHOE Transporting Transporting CAUTION: Fasten chains or cables to the machine frame. Do not place chains or cables over or against the hydraulic lines or hoses. 1. Place blocks in front of and behind the tracks. M107-06-013 2.
Page 494 OPTIONAL ATTACHMENTS AND DEVICES PAD CRAWLER SHOE Check Track Sag --- every 50 hours Swing the upperstructure 90 ° and lower the bucket to raise the track off the ground as shown. Keep the angle between the boom and arm 90 to 110 ° and position the bucket’s round side on the ground.
Page 495 OPTIONAL ATTACHMENTS AND DEVICES PAD CRAWLER SHOE Loosen the Track (ZX135US-6) CAUTION: Do not loosen valve (1) quickly or loosen it too much as high-pressure grease in the adjusting cylinder may spout out. Loosen carefully, keeping body parts and face away from valve (1). Never loosen grease fitting (2).
Page 496 OPTIONAL ATTACHMENTS AND DEVICES PAD CRAWLER SHOE Loosen the Track (ZX225USLC-6) CAUTION: The pressure inside the cylinder of the track adjuster is high. Do not loosen valve (1) quickly or loosen it too much as valve (1) may fly out or high- pressure grease in the adjusting cylinder may spout out.
Page 497 OPTIONAL ATTACHMENTS AND DEVICES PAD CRAWLER SHOE Tighten the Track CAUTION: It is abnormal if the track can not be adjusted. The strong force acts on the spring in track adjuster. Therefore, the grease in cylinder is highly pressurized. In such cases, NEVER ATTEMPT TO DISASSEMBLE the track or track adjuster, because of dangerous high-pressure grease inside the track adjuster.
Page 498: Long Arm Operation
OPTIONAL ATTACHMENTS AND DEVICES LONG ARM OPERATION Long Arm Operation ZX135US-6 1. The optional [3.01 m] long arm is only for light works such as loam loading, sludge handling, etc.. Do not use it for heavy works such as digging gravel. When the arm is used for digging, apply shallow cut to the ground to avoid tough digging, or arm damage may result.
Page 499: Blade Lever
OPTIONAL ATTACHMENTS AND DEVICES BLADE Blade Lever ZX135US-6, 225USLC-6 Use blade lever (1) on the operator’s right to raise and lower the blade. When the lever is released, it automatically returns to neutral, keeping the blade in its position until the lever is operated again.
Page 500: Avoid Hitting Blade With Front-End Attachment
OPTIONAL ATTACHMENTS AND DEVICES BLADE Avoid Hitting Blade with Front-End Attachment When operating the machine with the blade positioned towards the front, the bucket or boom cylinder may come into contact with the blade if you are not careful. Be sure to prevent this from happening.
Page 501: Blade Maintenance
OPTIONAL ATTACHMENTS AND DEVICES BLADE Blade Maintenance Greasing --- every 250 hours Lubricate all fittings shown in the figure.  Blade Joint Pins (2 points)  Blade Cylinder Rod (2 points)  Blade Cylinder Bottom (2 points) M175-13-002 Transportation Figure for Machine Equipped with Blade When transporting the machine equipped with a blade and a long arm front attachment on a trailer, place the blade in the opposite position toward the front attachment.
Page 502: Specifications
OPTIONAL ATTACHMENTS AND DEVICES BLADE Specifications ZX135US-6 with Blade B B' MDAT-13-003 Model ZX135US-6 with Blade Type of Front-End Attachment 2.52 m Arm Bucket Capacity (Heaped) PCSA 0.50 m , CECE 0.45 m Counterweight Weight 3520 kg Operating Weight 15100 kg Base Machine Weight 11500 kg Engine Type...
Page 503: Working Ranges
OPTIONAL ATTACHMENTS AND DEVICES BLADE Working Ranges ZX135US-6 with Blade MDAT-13-002 Model ZX135US-6 with Blade Category 2.52 m Arm 3.01 m Arm Item A: Maximum Digging Reach 8390 8860 B: Maximum Digging Depth 5490 5980 C: Maximum Cutting Height 9290 9690 D: Maximum Dumping Height 6830...
Page 504: Shoe Types And Applications
OPTIONAL ATTACHMENTS AND DEVICES BLADE Shoe Types and Applications ZX135US-6 with Blade 500 mm 600 mm 700 mm Shoe Width Grouser Shoe Grouser Shoe Grouser Shoe For Ordinary For Weak Footing For Weak Footing Application Ground (Option) (Option) (Standard) Operating Weight 15100 15700 16100...
Page 505: Specifications
OPTIONAL ATTACHMENTS AND DEVICES BLADE Specifications ZX225USLC-6 with Blade MDAT-13-004 Model ZX225USLC-6 with Blade Type of Front-End Attachment 2.91 m Arm Bucket Capacity (Heaped) PCSA 0.80 m , CECE 0.70 m Counterweight Weight 6860 kg Operating Weight 27200 kg Base Machine Weight 22400 kg Engine Type Isuzu AR-4HK1XASA-12...
Page 506: Working Ranges (Grouser Shoe)
OPTIONAL ATTACHMENTS AND DEVICES BLADE Working Ranges (Grouser shoe) ZX225USLC-6 with Blade MDCN-13-015 Model ZX225USLC-6 with Blade Category 2.42 m Arm 2.91 m Arm Item A: Maximum Digging Reach 9620 10110 B: Maximum Digging Depth 6120 6620 C: Maximum Cutting Height 10790 11230 D: Maximum Dumping Height...
Page 507: Shoe Types And Applications
OPTIONAL ATTACHMENTS AND DEVICES BLADE Shoe Types and Applications ZX225USLC-6 with Blade 600 mm 700 mm 800 mm Shoe Width Grouser Shoe Grouser Shoe Grouser Shoe For Ordinary For Weak For Weak Application Ground Footing Footing (Standard) (Option) (Option) Operating Weight 27500 27900 28200...
Page 508: Bucket Teeth (Transverse-Type-Pin-Used Type)
OPTIONAL ATTACHMENTS AND DEVICES BUCKET TEETH Bucket Teeth (Transverse-Type-Pin-Used Type) Replacement Procedure CAUTION: Guard against injury from flying pieces of metal. Wear goggles or safety glasses. 1. Securely lower the bucket to the ground. 2. Use hammer (3) and drift (2) to drive out transverse-type locking pin (1) to remove tooth (4).
Page 509: Control Lever (4 Way Multi Valve) (Optional)
Control Lever (4 Way Multi Valve) (Optional) The control lever operation pattern is selected to one of four patterns, Y-type (ISO pattern), H-type (Hitachi pattern), M-type and K-type by shifting selector valve (1). WARNING: To prevent a serious accident or personal injury and/or death from occurring due to erratic machine movement, follow the instructions below.
Page 510: Hydraulic Breaker, Hydraulic Crusher And Quick Coupler
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Hydraulic Breaker, Hydraulic Crusher and Quick Coupler WARNING: A standard specification machine is not intended to be used in applications such as demolition for which additional safety measures are necessary (e.g.
Page 511: Piping For Breaker And Crusher
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Piping for Breaker and Crusher Operational Procedures for Stop Valves and Selector Valve. Close Open Stop Valve A Close: When attachment is detached or not in use. M1U1-05-007 Open: When using attachment MAIN BODY BOOM ATTACHMENT...
Page 512: Secondary Relief Pressure Adjustment
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Secondary Relief Pressure Adjustment Depending on the breaker model, the secondary relief valve relief set pressure differs. Consult your nearest Hitachi dealer for installing a breaker. 13-22...
Page 513: Precautions For Breaker Operation
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Precautions for Breaker Operation WARNING: Machine stability is reduced as the breaker is much heavier than the bucket. When using a breaker, the machine is more likely to tip over. Also, flying objects may hit the cab or other parts of the machine.
Page 514 Hose jumping including pumps. abnormally Contact your nearest Hitachi dealer. M104-05-058 Do Not Operate the Breaker in Water Do not operate the Doing so will cause rust and seal damage, resulting in breaker in water.
Page 515 OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Operate the Hydraulic Excavator Carefully to Avoid Hitting the Boom When the arm rolled in with the breaker equipped, the chisel may come in contact with the boom. Watch Out! Take care not to hit the boom with the crusher...
Page 516 OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Raising the Front Part of the Undercarriage by Pressing Down the Breaker May Cause Damage to the Front Attachment Never raise the front edge of the undercarriage higher than 150 mm by pressing the breaker down.
Page 517: Change Hydraulic Oil And Replace Full-Flow Filter Element
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Change Hydraulic Oil and Replace Full-Flow Filter Element Hydraulic breaker operation results in faster contamination of the hydraulic system, and faster deterioration of hydraulic oil. Failure to comply with proper maintenance intervals may result in damage to the base machine and the breaker.
Page 518: Precautions For Crusher Operation
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Precautions for Crusher Operation Prevent machine tipping over and damage to the front attachment. Observe the following precautions for crusher operation. WARNING: Machine stability is reduced as the crusher is much heavier than bucket.
Page 519 OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER  When the arm is rolled in with the crusher equipped, the crusher may come into contact with the boom. Watch Out! Take care not to hit the boom with the crusher ...
Page 520 OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER  Always operate the crusher on a stable, level surface, not on a slope or on crushed debris.  Do not use the crusher to haul or load crushed debris. ...
Page 521: Attachment
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Attachment Allowable Weight Limits of Installed Attachment WARNING:  Before installing attachments such as hydraulic  According to the specifications of installed breaker, crusher (concrete crusher), or pulverizer, attachment and the base machine, the take machine controllability into account when machine weight may exceed the allowable maximum operating weight of the ROPS,...
Page 522 OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER  Breaker operation speed is faster than crusher operation, so that recommended maximum weight for breaker are lower than those for crushers.  Weight is not the only factor to be considered when selecting a breaker.
Page 523: Attachment Connection Parts
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Attachment Connection Parts The attachment hydraulic line and connection parts are located as illustrated below. When the attachment is disconnected, be sure to install caps or plugs to the ends of both the arm and attachment side hydraulic lines to prevent dust from entering or from sticking.
Page 524 OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Part No. List (Fill attachment manufacturer's part Nos. in the blank spaces.) Adapter Size Adapter Plug Hose PF-UNF Form / Size 37 ° Male-Type 37 ° 37 ° ZX135US-6 PF1-1-1/16UN 4456399 4222711...
Page 525: Precautions For Arm Roll-In/Bucket Roll-In Combined Operation
OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER Precautions for Arm Roll-In/Bucket Roll-In Combined Operation When Installing an Attachment Longer Than Standard Bucket WARNING: If an attachment (such as a hydraulic breaker, crusher or quick coupler) is installed that has a longer overall length than that of the bucket, Watch Out! Take care not to hit the...
Page 526 OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC BREAKER, HYDRAULIC CRUSHER AND QUICK COUPLER MEMO ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 527 INDEX Avoid Tipping ................. S-19 Avoid Undercutting ..............S-19 About Aftertreatment Device .............1-3 Actual operation ................1-84 Adjust Bucket Linkage ..............7-113 BREAK-IN .....................2-1 Adjust the Operator’s Seat ............S-6 Backrest Adjustment ........... 1-145, 1-147 Adjusting Operator’s Seat ............1-144 Basic Screen ..................1-10 Adjusting Operator’s Seat (Optional) ........1-146 Battery ....................7-105 Adjusting Procedures ..............1-148...
Page 528: Index
INDEX Check Instruments After Starting ........... 3-10 Check Starter and Alternator ..........7-131 EGR Cooler Cleaning ..............7-131 Check the Hour Meter Regularly ..........7-5 Electric Grease Gun ............7-37, 7-46 Check Track Sag ................7-120 Electric Grease Gun (Lithium-ion Battery) Check Turbo Charger ..............7-131 (Only ZX345US-6 class) ............
Page 529 INDEX Hydraulic System ................7-64 Numeric Keypad ................1-99 OPERATING THE ENGINE ...............3-1 Information Menu ................ 1-75 OPERATING THE MACHINE ............5-1 Input Password ................1-17 OPERATOR’S STATION ..............1-3 Inspect and Adjust Valve Clearance ........7-131 OPTIONAL ATTACHMENTS AND DEVICES ......13-1 Inspect Machine ................S-4 Object Handling ................
Page 530 INDEX Preparations for Inspection and Maintenance ....7-10 ZX345USLC-6 ................12-9 Prepare for Emergencies ...............S-3 ZX135US-6 with Blade ............13-12 Prevent Battery Explosions ............S-37 ZX225USLC-6 with Blade ............13-15 Prevent Burns ................. S-29 STORAGE ..................10-1 Prevent Fires ................... S-31 Sampling the Engine Oil ............7-69 Prevent Parts from Flying ............
Page 531 INDEX Travel Levers and Pedals ...............4-1 Travel Mode Switch .............1-95, 4-3 Travel Operation ................1-82 Travel Reduction Gear ..............7-62 Traveling and Other Cautions ..........13-2 Tuning Procedure ...............1-121 Understand Signal Words .............S-1 Unit Selection ................1-69 Unloading ..................6-6 Urea SCR System .................7-158 Urea SCR System Remedy ............
Page 532 INDEX MEMO ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................14-6...

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Zaxis 225us-6 class Zaxis 345us-6 classZaxis 135us-6Zaxis 225uslc-6 Zaxis 345uslc-6

Hitachi ZAXIS 135US-6 class Operator's Manual

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