Page 1 PART No. EM1CG-NA1-2 Hydraulic Excavator Serial No. 040001 and up...
Page 2 (including safety standards) and requirements of that particular country. Please do not Warranty is provided as a part of Hitachi's support operate this machine outside of the country of its program for customers who operate and maintain their intended use until such compliance has been equipment as described in this manual.
Page 3 MACHINE NUMBERS INDEX SAFETY SAFETY SIGNS COMPONENTS NAME 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 OPTIONAL ATTACHMENTS AND DEVICES INDEX...
Page 5 MACHINE NUMBERS MACHINE TYPE AND SERIAL NUMBER MODEL/TYPE: PRODUCT IDENTIFICATION NUMBER: PRODUCT IDENTIFICATION NUMBER M1CG-01-003 PRODUCT IDENTIFICATION NUMBER: NOTE: Marks to indicate the start and end of the PIN ∗1CGP040001∗ PRODUCT IDENTIFICATION NUMBER (PIN) M1CG-00-001 ENGINE TYPE AND SERIAL NUMBER TYPE: MFG.
Page 6 MACHINE NUMBERS SWING MOTOR TYPE AND SERIAL NUMBER TYPE: MFG. NO.: M1CG-07-029 HYDRAULIC PUMP TYPE AND SERIAL NUMBER TYPE: MFG. NO.: M1CG-07-019...
Page 7 CONTENTS MACHINE NUMBERS Avoid Applying Heat to Lines Containing Flammable Fluids........S-27 SAFETY Remove Paint Before Welding or Heating ..S-27 Recognize Safety Information......S-1 Prevent Battery Explosions ....... S-28 Understand Signal Words........S-1 Service Air Conditioning System Safely .... S-28 Follow Safety Instructions........S-2 Handle Chemical Products Safely.....
Page 8 Replace Air Breather Element .....7-34 Horn ..............5-1 Check Hoses and Lines .......7-35 Control Lever (ISO Pattern) ....... 5-2 Service Recommendations for Control Lever (HITACHI Pattern) ....... 5-3 Hydraulic Fittings ........7-38 Pilot Control Shut-Off Lever......... 5-4 E. Fuel System ..........7-40 Engine Speed Control.......... 5-7 Drain Fuel Tank Sump.........7-42...
Page 9 CONTENTS Check Coolant Level ........7-52 Bucket Types and Applications ......12-4 Check and Adjust Fan Belt Tension .... 7-52 OPTIONAL ATTACHMENTS AND Change Coolant........... 7-53 DEVICES Clean Radiator Interior ........ 7-53 Clean Radiator and Oil Cooler Core Outside..7-54 Blade Lever ............13-1 Clean Oil Cooler Front Screen ....
Page 10 CONTENTS MEMO ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 11 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 in- jury. • Follow recommended precautions and safe operating practices.
Page 12 SAFETY FOLLOW SAFETY INSTRUCTIONS • Carefully read and follow all safety signs on the machine and all safety messages in this manual. • Safety signs should be installed, maintained and re- placed when necessary. • If a safety sign or this manual is damaged or missing, order a replacement from your authorized dealer in the same way you order other replacement parts (be sure to state machine model and serial number when...
Page 13 SAFETY WEAR PROTECTIVE CLOTHING • Wear close fitting clothing and safety equipment appro- priate to the job. You may need: A hard hat Safety shoes Safety glasses, goggles, or face shield Heavy gloves Hearing protection Reflective clothing Wet weather gear SA-438 Respirator or filter mask.
Page 14 SAFETY GENERAL PRECAUTIONS FOR CAB • Before entering the cab, thoroughly remove all dirt and/or oil 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 result- ing in a personal accident.
Page 15 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 handholds.
Page 16 SAFETY FASTEN YOUR SEAT BELT • If the machine should overturn, the operator may be- come injured and/or thrown from the cab. Additionally the operator may be crushed by the overturning machine, resulting in serious injury or death. • Prior to operating the machine, thoroughly examine webbing, buckle and attaching hardware.
Page 17 SAFETY OPERATE ONLY FROM OPERATOR’S SEAT • Inappropriate engine starting procedures may cause the machine to runaway, possibly resulting in serious injury or death. • Start the engine only from the operator’s seat. • NEVER start the engine while standing on the track or on ground.
Page 18 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 19 SAFETY PROVIDE SIGNALS FOR JOBS INVOLVING MULTIPLE NUMBERS OF MACHINES • For jobs involving multiple numbers of machines, pro- vide 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.
Page 20 SAFETY DRIVE MACHINE SAFELY • Before driving the machine, always confirm that the travel levers/pedals direction corresponds to the direc- tion 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 21 SAFETY AVOID INJURY FROM ROLLAWAY ACCI-DENTS • 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 machine. • Do not park the machine on a grade. •...
Page 22 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 23 SAFETY KEEP PERSON CLEAR FROM WORKING AREA • A person may be hit severely by the swinging front at- tachment or counterweight and/or may be crushed against an other object, resulting in serious injury or death. • Keep all persons clear from the area of operation and machine movement.
Page 24 SAFETY AVOID TIPPING DO NOT ATTEMPT TO JUMP CLEAR OF TIPPING MACHINE --- SERIOUS OR FATAL CRUSHING INJU- RIES WILL RESULT MACHINE WILL TIP OVER FASTER THAN YOU CAN JUMP FREE FASTEN YOUR SEAT BELT • The danger of tipping is always present when operating on a grade, possibly resulting in serious injury or death.
Page 25 SAFETY 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. • Before digging check the location of cables, gas lines, and water lines. • Keep the minimum distance required, by law, from ca- bles, gas lines, and water lines.
Page 26 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 27 SAFETY PARK MACHINE SAFELY To avoid accidents: • Park machine on a level surface. • Lower bucket to the ground. • Turn auto-idle switch and H/P mode switch off. • Run engine at slow idle speed without load for 5 min- utes.
Page 28 SAFETY SAFETY TRANSPORTING • The danger of tipping is present when loading/unloading the machine onto/from a truck or trailer bed. • Be sure to observe local regulations when transporting the machine on public roads. • Provide an appropriate truck or trailer for transporting the machine.
Page 29 SAFETY PRACTICE SAFE MAINTENANCE To avoid accidents: • Understand service procedures before doing 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 mov- ing.
Page 30 SAFETY • Sufficiently illuminate the work site. Use a mainte- nance work light when working under or inside the machine. • Always use a work light protected with a guard. In case the light bulb is broken, spilled fuel, oil, anti- freeze fluid, or window washer fluid may catch fire.
Page 31 SAFETY PREVENT PARTS FROM FLYING • Grease in the track adjuster is under high pressure. Failure to follow the precautions below may result in se- rious injury, blindness, or death. • Do not attempt to remove GREASE FITTING or VALVE ASSEMBLY. •...
Page 32 SAFETY PREVENT BURNS Hot spraying fluids: • After operation, engine coolant is hot and under pres- sure. Hot water or steam is contained in the engine, ra- diator and heater lines. Skin contact with escaping hot water or steam can cause severe burns.
Page 33 SAFETY AVOID HIGH-PRESSURE FLUIDS • Fluids such as diesel fuel or hydraulic oil under pressure can penetrate the skin or eyes causing serious injury, blindness or death. • Avoid this hazard by relieving pressure before dis- connecting hydraulic or other lines. •...
Page 34 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 35 SAFETY Check Heat Shields: • Damaged or missing heat shield may lead to fires. • Damaged or missing heat shields must be repaired or replaced before operating the machine. 508-E02A-0393 EVACUATING IN CASE OF FIRE • If a fire breaks out, evacuate the machine in the follow- ing way: •...
Page 36 SAFETY PRECAUTIONS FOR WELDING AND GRIND- • Welding may generate gas and/or small fires. • Be sure to perform welding in a well ventilated and prepared area. Store flammable objects in a safe place before starting welding. • Only qualified personnel should perform welding. Never allow an unqualified person to perform welding.
Page 37 SAFETY AVOID HEATING NEAR PRESSURIZED FLUID LINES • Flammable spray can be generated by heating near pressurized fluid lines, resulting in severe burns to your- self and bystanders. • Do not heat by welding, soldering, or using a torch near pressurized fluid lines or other flammable mate- rials.
Page 38 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 39 • Improperly disposing of waste can threaten the envi- ronment and ecology. Potentially harmful waste used with HITACHI equipment includes such items as oil, fuel, coolant, 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 40 SAFETY MEMO ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................S-30...
Page 41 SAFETY SIGNS M1CG-00-006 SS-862 SS-863 M1CC-00-007 M1CG-00-007 SS3088058 SS-859 M1CC-00-005 SS3098290 M1CG-00-006 S-31...
Page 42 SAFETY SIGNS M1CG-00-003 SS3092845 SS-408 SS-428 SS-864 M1CG-07-034 M1CG-07-036 SS4451440 S-32...
Page 43 SAFETY SIGNS Caution:Possibility of pinch fin- Push down with the palm. SS-955 gers M1SE-01-002 SS-024 M1CG-00-005 M1CG-07-037 SS4456963 SS4469413 M1CG-07-037 S-33...
Page 44 SAFETY SIGNS SS-411 M1CG-07-039 SS4467093 M1CD-00-001 S-34...
Page 45 COMPONENTS NAME COMPONENTS NAME 1- Bucket 2- Bucket Cylinder 3- Arm 4- Arm Cylinder 5- Boom Cylinder 6- Boom 7- Fuel Tank 8- Hydraulic Oil Tank 9- Engine 10- Counterweight 11- Track 12- Blade 13- Blade Cylinder 14- Front Idler 15- Travel Device 16- Cab M1CG-01-01-005...
Page 46 OPERATOR'S STATION CAB FEATURES 1- Left Control Lever/Horn Switch (On Top of Lever) 2- Left Travel Pedal 3- Left Travel Lever 4- Right Travel Lever 5- Right Travel Pedal 6- Right Control Lever 7- Monitor Panel 8- Switch Panel 9- Key Switch 10- Air Conditioner Panel --- If Equipped 11- Operator's Seat 12- Radio...
Page 47 OPERATOR'S STATION MONITOR PANEL 1- Coolant Temperature Gauge 2- Fuel Gauge 3- Display Selection Switch 4- Set Switch 5- Fuel Level Indicator 6- Air Filter Restriction Indicator 7- Alternator Indicator 8- Hydraulic Oil Filter Restriction Indicator (Optional) 9- Engine Oil Pressure Indicator 10- Preheat Indicator 11- Overheat Indicator 12- Liquid Crystal Display (LCD) (Hour Meter, etc.)
Page 48 OPERATOR'S STATION COOLANT TEMPERATURE GAUGE Engine coolant temperature is indicated. Coolant tem- perature is normal when the needle stays in the middle zone while operating. M178-01-104 FUEL GAUGE Fuel machine before needle reaches “E”. M178-01-105 AUTO-IDLE INDICATOR Green indicator will light when the auto-idle selector is turned to the A/I position.
Page 49 OPERATOR'S STATION OVERHEAT INDICATOR IMPORTANT: Prevent possible engine damage. Do not stop engine while this red indicator is ON. Instead, reduce load and run engine at slow idle. If overheat indicator con- tinues to stay ON, shut engine off. Red indicator will light and buzzer will sound when the en- M178-01-036 gine coolant overheats.
Page 50 OPERATOR'S STATION LIQUID CRYSTAL DISPLAY (LCD) LCD (12) displays three kinds of information such as Hour Meter, Trip Meter 1, and Trip Meter 2 in the standard mode. When the user’s mode is selected, LCD (12) displays two more kinds of information such as Engine Speed, and Hy- draulic Oil Temperature.
Page 51 OPERATOR'S STATION TRIP METER 1 AND TRIP METER 2 The machine operation hours can be set in the trip meter as desired. Display Trip Meter 1 or 2 by operating display selection switch (3). Set the desired machine operation hours using the SET switch so that the trip meter counts the remaining hours from the set-hours.
Page 52 OPERATOR'S STATION SET SWITCH The set-hours in the Trip Meter 1 and Trip Meter 2 can be changed by pressing SET switch (4). • Setting 1. Press display selection switch (3) to display either Trip Meter 1 or 2 on the LCD. 2.
Page 53 OPERATOR'S STATION SWITCH PANEL 1- Engine Control Dial 2- Auto-Idle Switch 3- Power Mode Switch 4- Travel Mode Switch 5- Work Light Switch 6- Wiper/Washer Switch M1CC-01-101 ENGINE CONTROL DIAL Use engine control dial (1) to adjust engine speed. Turn it clockwise to increase engine speed or counter- Fast Idle clockwise to decrease engine speed.
Page 54 OPERATOR'S STATION AUTO-IDLE SWITCH While auto-idle switch (1) is turned on, engine speed de- creases to the auto-idle setting from the engine control dial setting approximately 4 seconds after the control levers are returned to neutral. Indicator (2) stays on while auto-idle switch (1) is turned on.
Page 55 OPERATOR'S STATION POWER MODE SWITCH Two engine speed modes, E and P modes, are selected by operating the power mode switch. • E (Economy) Mode Although production is slightly reduced more than in the P mode, the fuel consumption and noise levels are re- duced, allowing the machine to operate efficiently.
Page 56 OPERATOR'S STATION WORK LIGHT SWITCH Work light switch has the following positions: • 1 Position Work light (1) on the base machine will light. Also, the instrument panel illumination will light. • 2 Position M178-01-097 Work light (2) will light in addition. •...
Page 57 OPERATOR'S STATION WIPER/WASHER SWITCH Fast The wiper and the window washer are operated using the wiper/washer switch. • Wiper Slow Turn the wiper/washer switch to the specified position to operate the wiper. OFF Position: The wiper stops and is retracted. INT Position: The wiper operates intermittently at the M178-01-098 interval selected by the switch position as...
Page 58 OPERATOR'S STATION SWITCH PANEL (Optional) NOTE: The optional switch locations differ depending on the kinds of optional devices are equipped. Before using the switches on the switch panel, make sure what kind of optional devices are equipped. All available optional devices are shown below.
Page 59 OPERATOR'S STATION KEY SWITCH 1- HEAT (Pre-Heat) 2- OFF (Engine Off) 3- ACC (Horn, Radio etc.) 4- ON (Engine On) 5- START (Engine Start) M1CC-01-005 HORN SWITCH Horn switch (6) is provided on the top of the left control lever. The horn continuously sounds as long as the switch is pressed.
Page 60 30 seconds after pushing cigar lighter (2) in, pull out cigar lighter (2) manually. Then, consult the your nearest Hitachi dealer. 1. Turn key switch (1) to the ACC or ON position. 2. Press and release cigar llighter (2) knob.
Page 61 OPERATOR'S STATION 12-V POWER SOURCE 1. Turn key switch (1) [ON]. 2. Open the electric power source socket cover. 3. Connect a 12-V specification accessory to be used to this socket. 4. Be sure to close the socket cover after operation is complete.
Page 62 Turn the cab light ON or OFF by using switch (1). M1CC-01-016 Extinguisher INSTALLING FIRE EXTINGUISHER A fire extinguisher can be installed at the right rear corner inside the cab. Consult your nearest HITACHI dealer to in- stall a fire extinguisher. M1CC-01-042 1-18...
Page 63 OPERATOR'S STATION PILOT CONTROL SHUT-OFF LEVER Pilot control shut-off lever (1) functions to prevent the ma- chine from being mistakenly operated when the operator is getting on or off the machine. CAUTION: • Pilot control will not be shut-off unless pilot control shut-off lever (1) is completely pulled-up to the LOCK position.
Page 64 OPERATOR'S STATION FUSE BOX 10- OPTION 3 20- SPARE 9- OPTION 2 19- GLOW. R 8- OPTION 1 18- AUXILIARY 7- AIRCON 17- ROOM LAMP 6- POW. ON 16- LIGHTER 5- SWBOX 15- RADIO M1CC-01-018 4- SOLENOID 14- HORN 20 19 18 17 16 15 14 13 12 11 3- EC.
Page 65 OPERATOR'S STATION AIR CONDITIONER OPERATION Features: • Full-Automatic Control Regardless of variations in atmospheric temperature and whether sun light is intense or not, the air tempera- ture at the vent, blower speed, and air in/out vent loca- tions are automatically controlled so that air temperature in the cab is maintained at the temperature set by the temperature control switch.
Page 66 OPERATOR'S STATION Part Name 1- Front Vent 2- Foot Vent 3- Defroster Vent 4- Rear Vent 5- Control Panel 6- Blower Switch 7- Liquid Crystal Display (LCD) 8- Air Conditioner Switch 9- AUTO Switch M1CC-01-017 10- OFF Switch 11- Temperature Control Switch 12- Circulation Mode Switch 13- Fresh Air Mode Switch 14- MODE Switch...
Page 67 OPERATOR'S STATION Control Panel Designation and Function • Mode Switch (14): Selects the air vent. The selected air vent is indicated on LCD (7). Air flows out of front vent and the defroster vents. M178-01-074 Air flows out of the front and rear vents and Display when AUTO switch (9) is pressed: the defroster vents.
Page 68 OPERATOR'S STATION • When the “FH” symbol is displayed on LCD (7), air flow-in temperature at the vent, air vent (front and rear vents) locations, fresh air suction port, and blower speed are maintained at the highest heating condi- tions. However, in case the circulation indicator is ON before the “FH”...
Page 69 OPERATOR'S STATION • Air Conditioner (A/C) Switch (8) A/C Indicator Press A/C switch (8) to turn the cooler and the A/C indi- cator ON. However, unless the blower is running (the fan display of blower switch (6) is lit), the cooler will not be turned ON.
Page 70 OPERATOR'S STATION COOLING OPERATION 1. Press AUTO Switch (9) The AUTO and the A/C indicators come ON. Then, the air temperature at the vent, blower speed, vent locations, and air suction ports are automatically con- trolled by the air conditioner amplifier according to signals sent from various sensors.
Page 71 OPERATOR'S STATION Cool Head / Warm Feet Operation Cool and warm air is simultaneously supplied to the front vents and foot vents respectively. 1. Press blower switch (6) to adjust the blower speed. 2. Press MODE switch (14) to display the front and foot vent mark on the liquid crystal panel.
Page 72 OPERATOR'S STATION TIPS FOR OPTIMAL AIR CONDITIONER US- For Rapid Cooling Temperature in the cab may rise over 80°C (176°F) when the machine is exposed to sun light in the sum- mer. In this case, ventilate air in the cab first by opening the windows for rapid cooling.
Page 73 OPERATOR'S STATION CAB HEATER OPERATION Part Name and Location 1- Front Vent 2- Foot Vent 3- Defroster Vent 4- Rear Vent 5- Control Panel 6- Mode Switch 7- Fresh Air Vent Switch 8- Temperature Control Switch M1CC-01-017 9- Blower Switch 10- OFF Switch NOTE: Air flow direction can be changed by controlling the louvers at all air vents except for the foot...
Page 74 OPERATOR'S STATION • Blower Switch (9) The blower speed is controlled from Lo to Hi in 4 steps. When the button is pressed first, the blower starts running in the HI mode. Then, each time button is pressed, the blower speed is re- duced by one step.
Page 75 OPERATOR'S STATION CAB HEATER OPERATION When any mode switches (6) are pressed ( ), warm air will flow out from the corresponding vent. However, the foot vent mode is commonly used for cab heating. Press foot mode switch (6). Set temperature control switch (8) to the right end position.
Page 76 OPERATOR'S STATION DEFROSTER OPERATION Press mode switch (6) (either the front or front/rear vent mode switch). Set temperature control switch (8) to the heat operation position. Press fresh air mode switch (7). Press blower switch (9). Warm air will blow out from the front or front/ rear vents.
Page 77 OPERATOR'S STATION AM/FM RADIO OPERATION Controls on the radio 1- Power Switch/Volume Control Knob 2- Tone Adjustment Ring 3- AM/FM Switch 4- Station Presets 5- Tuning Switches 6- Display Mode Change Switch M1G6-01-026 7- Digital Display 8- Time Set Switches Tuning Procedure •...
Page 78 OPERATOR'S STATION Station Presetting Procedure 1. Select the desired station using tuning switches (5). (Refer to the “Tuning Procedure” section.) 2. Press and hold one station preset (4) for more than 1 second until an electronic tone is heard. Now, the se- lected station is preset for the selected station preset.
Page 79 OPERATOR'S STATION MEMO ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................1-35...
Page 80 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. To unlock the door from this position, push down on lever (1). M1CC-01-019 OPENING UPPER FRONT WINDOW 1.
Page 81 OPERATOR'S STATION CLOSING UPPER FRONT WINDOW CAUTION: Avoid possible injury while closing window. Upper front window comes down very forcefully. Close window only when sitting in the operator's seat. Guide window down slowly. 1. Pull out lock pin (3) to unlock window. 1.
Page 82 OPERATOR'S STATION REMOVING AND STORING LOWER FRONT WINDOW CAUTION: Take care not to pinch yours fingers when handling the lower front window. 1. Open the upper front window beforehand when re- moving the lower front window. 2. While pulling the lower front widow upward, remove 3.
Page 83 OPERATOR'S STATION OPENING SIDE WINDOWS CAUTION: Avoid serious crushing injury from boom. Never place any part of body beyond win- dow bar or frame. It could be crushed by the boom if boom control lever is accidentally bumped or otherwise engaged. Do not remove window bars.
Page 84 OPERATOR'S STATION OPENING/CLOSING OVERHEAD WINDOW Opening 1. Move lock levers (1) toward center of window. 2. Hold handle (2) and lift window until it rises upright. With the window positioned upright, it will be secured in position by dampers (3). Closing 1.
Page 85 OPERATOR'S STATION EMERGENCY EXIT If the operator’s cab door should not open in an emergency, escape in the following methods: 1. Open the front windows. Escape through the win- dows. NOTE: See page 1-36 “OPENING UPPER FRONT WINDOWS” for the opening method of the front windows.
Page 86 OPERATOR'S STATION ADJUSTING THE SEAT --- IF EQUIPPED Seat height and angle adjustment Seat height adjustment range is 60 mm (2.4 in) with steps every 15 mm (0.6 in) (5 positions in total). More- over, the height of the front part and the rear part of the seat are adjusted independently, thus allowing the angle of the seat to be adjusted.
Page 87 OPERATOR'S STATION Headrest adjustment 60° Headrest height and angle can be adjusted. Pull headrest (5) upward or push downward to the de- sired position. (Height adjustment range: 50 mm (2.0 in)) Headrest (5) can be adjusted 60 degrees forward from the upright position.
Page 88 OPERATOR'S STATION ADJUSTING CONSOLE HEIGHT Adjust the console height to the operator’s comfort and/or work conditions. Adjusting console height can be achieved using three positions provided vertically at 20 mm intervals. CAUTION: Before loosening the console, sup- port the console. Otherwise, the console may suddenly drop, possibly causing personal injury.
Page 89 OPERATOR'S STATION SEAT BELT CAUTION: Be sure to use the seat belt when op- erating the machine. Before operating the machine, be sure to exam- ine seat belt (1), buckle (2), and attaching hard- ware. Replace seat belt (1), buckle (2), or attach- ing hardware if they are damaged, or worn.
Page 90 OPERATOR'S STATION MEMO ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................1-46...
Page 91 BREAK-IN OBSERVE ENGINE OPERATION CLOSELY IMPORTANT: Be extra cautious during the first 50 hours, until you become thoroughly fa- miliar with the sound and feel of your new machine. 1. Operate the machine only in economy (E) mode and limit the engine horsepower up to about 80 % of full load.
Page 92 BREAK-IN MEMO ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 93 OPERATING THE ENGINE INSPECT MACHINE DAILY BEFORE STARTING Arm Cylinder Boom Bucket Cylinder Link B Work Light Swing Bearing Boom Cylinder Link A Work Light Swing Drain Filter Control Valve Bucket Pilot Filter Swing Device Tooth Fuel Tank Side Cutter Control Lever Hydraulic Oil Tank Center Joint...
Page 94 (3) and/or engine oil pressure indicator (4) stays OFF, the M1CC-01-005 machine is abnormal. Immediately con- sult your nearest HITACHI dealer for re- pair. 4. Adjust the seat to allow full pedal and control levers stroke with operator’s back against the backrest.
Page 95 OPERATING THE ENGINE STARTING THE ENGINE 1. Pull the pilot control shut-off lever (1) up to the LOCK position. 2. Turn key switch (2) to ACC or ON position. 3. Sound horn to alert bystanders. 4. Turn engine control dial (3) to the slow idle position. IMPORTANT: Prevent starter damage.
Page 96 OPERATING THE ENGINE STARTING IN COLD WEATHER Preheating 1. Turn engine control dial (1) to around the middle be- tween the L and H positions. 2. Turn key switch (2) counterclockwise to HEAT posi- tion. Preheat indicator (3) will come on; after about 20 seconds preheat indicator (3) will go off, indicating that preheating is completed.
Page 97 OPERATING THE ENGINE CHECK INSTRUMENTS AFTER STARTING IMPORTANT: Prevent possible damage to engine. If indicator lights do not go out after starting engine, IMMEDIATELY STOP THE ENGINE and correct the cause. Check that 1. Check if alternator indicator (1) is OFF. In case alternator indicator (1) stays ON, immediately stop the engine.
Page 98 OPERATING THE ENGINE USING BOOSTER BATTERIES CAUTION: • An explosive gas is produced while batteries are in use or being charged. Keep flames or sparks away from the battery area. Charge the batteries in a well ventilated area. Do not continue to use or charge the battery when electrolyte level is lower than specified.
Page 99 OPERATING THE ENGINE Disconnecting the booster batteries 1. Disconnect black negative (–) cable (2) from the ma- chine 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 100 OPERATING THE ENGINE STOPPING THE ENGINE Engine stop procedure 1. Park the machine on a level surface. 2. Lower the bucket to the ground. 3. Turn engine control dial (1) to the slow idle position and run the engine for 5 minutes to cool the engine. SA-390 IMPORTANT: Turbocharger may be damaged if the engine is not properly shut down.
Page 101 DRIVING THE MACHINE DRIVE THE MACHINE CAREFULLY IMPORTANT: During freezing weather, park machine on a hard surface to prevent tracks from freezing to the ground. Clean debris from tracks and track frame. If tracks are frozen to the ground, raise tracks using boom, move machine care- fully to prevent damage to drive train and tracks.
Page 102 DRIVING THE MACHINE STEERING THE MACHINE USING PEDALS CAUTION: In the standard travel position, the front idlers are positioned at the front of the ma- Front Idler chine and the travel motors at the rear. If the travel motors are positioned at the front of the machine, the control actions of the travel pedals will be reversed.
Page 103 DRIVING THE MACHINE STEERING THE MACHINE USING LEVERS CAUTION: In the standard travel position, the front idlers are positioned at the front of the ma- Front Idler chine and the travel motors at the rear. If the travel motors are positioned at the front of the machine, the control actions of the travel levers will be reversed.
Page 104 DRIVING THE MACHINE TRAVEL MODE SWITCH CAUTION: Tipping-over accidents can cause se- rious personal injury. Do not change travel mode while traveling; especially, changing to the fast mode when descending slopes will create a very dangerous situation. Always stop the machine before changing the travel speed mode.
Page 105 DRIVING THE MACHINE TRAVELING CAUTION: Use a signal person when moving, swinging or operating the machine in congested areas. Coordinate hand signals before starting the machine. • Before moving machine, determine which way to move travel pedals/levers for the direction you want to go.
Page 106 DRIVING THE MACHINE OPERATING ON SOFT GROUND • Avoid traveling on very soft ground that does not have sufficient strength to firmly support the machine. • If the machine is operated on very soft ground or be- comes stuck, it may be necessary to clean the track frame area.
Page 107 DRIVING THE MACHINE TOWING MACHINE A SHORT DISTANCE RIGHT CAUTION: Cables, straps, or ropes can break causing serious injury. Do not tow machine with damaged chains, frayed cables, slings, straps, or wire ropes. Always wear gloves when handling cable, straps or wire ropes.
Page 108 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 worksite footing has suffi- cient strength to prevent the machine from sinking past the upper edge of the upper roller, and only if the water is flow- ing slowly.
Page 109 DRIVING THE MACHINE PRECAUTIONS FOR TRAVELING ON SLOPES CAUTION: Avoid possible injury from traveling on slopes. Tipping over or skidding down of the machine may result. Thoroughly read and under- stand precautions below and be sure to travel at slow speed on slopes. Never attempt to travel on slopes with the bucket loaded or any load sus- pended by the bucket.
Page 110 DRIVING THE MACHINE PARKING THE MACHINE ON SLOPES CAUTION: 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 111 OPERATING THE MACHINE HORN Use the horn to signal or warn personnel before operating the machine. Push horn switch (1) provided on the grip of the left control lever. CAUTION: If horn does not sound when pushed, immediately stop the engine and contact your authorized dealer for repair.
Page 112 OPERATING THE MACHINE CONTROL LEVER (ISO PATTERN) CAUTION: Never place any part of body beyond window frame. It could be crushed by the boom if boom control lever is accidentally bumped or otherwise engaged. If window is missing or bro- ken, replace immediately.
Page 113 OPERATING THE MACHINE CONTROL LEVER (HITACHI PATTERN) CAUTION: Never place any part of body beyond window frame. It could be crushed by the boom if boom control lever is accidentally bumped or otherwise engaged. If window is missing or bro- ken, replace immediately.
Page 114 OPERATING THE MACHINE PILOT CONTROL SHUT-OFF LEVER Pilot control shut-off lever (1) functions to prevent misoperation of the machine from occurring if the control levers are accidentally moved when leaving the operator's seat or when entering the cab. CAUTION: Always pull pilot control shut-off lever (1) into the full LOCK position.
Page 115 OPERATING THE MACHINE Warming-up Operation IMPORTANT: Hydraulic components may be seriously damaged if the machine is operated with hydraulic oil temperature below 30°C (86°F). Always warm hydraulic oil to specifications before operating the ma- chine. Warm up the engine coolant as follows: 1.
Page 116 OPERATING THE MACHINE Warming-up the Motor and the Cylinders IMPORTANT: 1. In cold weather, be sure to thoroughly warm-up the motors and cylinders. 2. If the hydraulic circuit is continuously relieved for a certain amount of time, the temperature in the control valve would rise excessively.
Page 117 OPERATING THE MACHINE ENGINE SPEED CONTROL Increase and decrease the engine speed using engine control dial (1) located on the right console, as illustrated. • Turn engine control dial (1) clockwise to increase the engine speed. Turn engine control dial (1) counter- clockwise to decrease the engine speed.
Page 118 OPERATING THE MACHINE AUTO-IDLE With auto-ilde switch (3) turned to the A/I position, ap- proximately 4 seconds after all control levers are returned to neutral, the engine speed decreases to the auto-idle set- ting to save fuel consumption. The engine speed will im- mediately increase to the speed set by engine control dial (2) when any control lever is operated.
Page 119 OPERATING THE MACHINE POWER MODE One of two engine speed modes, E or P mode, can be se- lected using power mode switch (1). • E (Economy) Mode Even if the engine speed is reduced in the E mode, dig- ging force remains unchanged from that in the P mode.
Page 120 OPERATING THE MACHINE PRECAUTIONS FOR OPERATIONS CAUTION: Investigate the work site before start- ing operations. Be sure to install an overhead cab guard when operating in a work site which has a possibil- ity of falling objects. If operation on soft ground is required, suffi- ciently reinforce the ground beforehand.
Page 121 OPERATING THE MACHINE OPERATE THE MACHINE SAFELY CAUTION: Prevent the machine from tipping over and from being involved in a ground collapse. Take the necessary precautions as follows: Make sure the worksite has sufficient strength to firmly support the machine. When working close to an excavation or at road shoulders, operate the machine with the tracks positioned perpendicular to the cliff...
Page 122 OPERATING THE MACHINE OPERATING BACKHOE 1. Place the bucket teeth on the ground with the bottom of the bucket at a 45 degree angle to the ground. 2. Pull the bucket toward the machine using the arm as the main digging force. 3.
Page 123 OPERATING THE MACHINE FACE SHOVEL OPERATION WRONG CAUTION: Take care not to hit the cab when roll- ing in the arm with the reversed-installed bucket. • For face shovel operation, dig the ground using the arm cylinder in a scraping motion. •...
Page 124 OPERATING THE MACHINE OPERATING TIPS WRONG Do not hit the track with the bucket when digging. Whenever possible, position your machine on a level sur- face. Do not use the bucket as a hammer or pile driver. Do not attempt to shift rocks and break walls using swing motion. IMPORTANT: To avoid damaging cylinders, do not strike the ground with the bucket nor use the bucket for tamping with the...
Page 125 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 as specified below. Track Frame IMPORTANT: Be sure to conform to the restrictions and precautions stated below when tow- ing a light weight object using the shackle hole provided on the track frame.
Page 126 OPERATING THE MACHINE OBJECT HANDLING --- IF EQUIPPED CAUTION: When you use machine for object handling, be sure to comply with all local regula- tions Cables, straps, or ropes can break, causing seri- ous injury. Do not use damaged chains, frayed cables, slings, straps, or ropes to crane.
Page 127 TRANSPORTING TRANSPORTING BY ROAD When transporting the machine on public roads, be sure to first understand and follow all local regulations. • When transporting using a trailer, check the width, height, length and weight of the trailer with the ma- chine loaded.
Page 128 TRANSPORTING Loading/Unloading CAUTION: Always turn the auto-idle switch OFF and the power mode switch OFF when loading or un- loading the machine, to avoid unexpected speed increase due to unintentional operation of a control lever. Always select the slow speed mode with the travel mode switch.
Page 129 TRANSPORTING 4. Stop the engine. Remove key from switch. 5. Move the control levers several times until hydraulic pressure in the cylinders is released. 6. Pull pilot control shut-off lever to LOCK position. 7. Close cab windows, roof vent and door, and cover the exhaust opening, to prevent entry of wind and water.
Page 130 TRANSPORTING Unloading CAUTION: The rear end of the flatbed where it meets the ramp is a sudden bump. Take care when traveling over it. 90 to 110° IMPORTANT: Prevent possible damage to the front attachment. Always position the arm at 90°...
Page 131 TRANSPORTING MACHINE LIFTING PROCEDURE CAUTION: Lifting wire ropes and other lifting tools can break, possibly causing serious personal in- jury. Do not use damaged or deteriorated wire ropes or lifting tools. Be sure to contact your authorized dealer for correct lifting procedure, and size and kinds of lifting wire ropes and lifting tools.
Page 132 TRANSPORTING MEMO ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 133 Use only genuine HITACHI parts. Failure to use recommended fuel, lu- bricants, and genuine Hitachi parts will result in loss of Hitachi product warranty. Never adjust engine governor or hy- draulic system relief valve. Protect electrical parts from water and steam.
Page 134 M1CC-01-100 USE CORRECT FUELS AND LUBRICANTS IMPORTANT: Always use recommended fuels and lu- bricants. Failure to do so will result in machine damage and loss of Hitachi product war- ranty.
Page 135 MAINTENANCE PREPARE MACHINE FOR MAINTENANCE Before performing the maintenance procedures given in the following chapters, park the machine as described be- low, unless otherwise specified. 1. Park the machine on a level surface. M1CC-07-002 2. Lower the bucket to the ground. 3.
Page 136 MAINTENANCE MAINTENANCE GUIDE TABLE The maintenance guide table is affixed to the reverse side of the tool box 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 137 MAINTENANCE Maintenance Guide Table M1CG-07-040 3, 4 Lubrication Interval Item Page Item Page Engine Oil Filter 7-18 Hydraulic Oil Filter (Main) 7-31 Coolant 7-50 Hydraulic Oil Filter (Pilot) 7-32 Grease 7-13 Hydraulic Oil Filter (Swing Drain) 7-33 Grease 7-15 Engine Oil 7-18 Hydraulic Oil 7-28...
Page 138 MAINTENANCE HOOD AND ACCESS COVERS CAUTION: • 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 139 MAINTENANCE PERIODIC REPLACEMENT OF PARTS To ensure safe operation, be sure to conduct periodic in- spection of the machine. In addition, the parts listed below, if defective, may pose serious safety/fire hazards. It is very difficult to gauge the extent of deterioration, fatigue, or weakening of the parts listed below simply by visual in- spection alone.
Page 140 MAINTENANCE USE ELECTRICAL OUTLET When using an inspection lamp during maintenance work, use electrical outlet (1) provided in the position shown in the figure. M1CC-01-015...
Page 141 IMPORTANT: Grease bucket and link pivots every day until break-in operation (50 hours) is complete. When a bucket without play adjustment devices, such as the slope finishing bucket and V type bucket, or any bucket other than the Hitachi genuine bucket is used, grease the two bucket connecting pins every 100 hours.
Page 142 MAINTENANCE D. HYDRAULIC SYSTEM (See Page 7-23) Interval (hours) Parts Quantity 50 100 250 500 1000 1500 2500 4000 1. Check Hydraulic Oil Level 2. Drain Hydraulic Oil Tank Sump 3. Change Hydraulic Oil 90 L (23.8 US gal) 4. Suction Filter Cleaning When changing hydraulic oil 5.
Page 143 MAINTENANCE H. ELECTRICAL SYSTEM (See Page 7-55) I. MISCELLANEOUS (See Page 7-61) Interval (hours) Parts Quantity 1000 2000 4000 1. Check Bucket Teeth for Wear and — Looseness 2. Change Bucket As required — 3. Convert Bucket Connection Into Face As required —...
Page 144 IMPORTANT: Grease bucket and link pivots every day until break-in operation (50 hours) is complete. When a bucket without play adjustment devices, such as the slope finishing bucket and V type bucket, or any bucket other than the Hitachi genuine bucket is used, grease the two bucket connecting pins every 100 hours.
Page 145 MAINTENANCE Front Joint Pins Link Pins --- every 500 hours Bucket Pins--- every 250 hours M1CD-07-002 M1CD-07-003 Others --- every 500 hours • Boom Foot M1CG-07-006 • Boom Cylinder Bottom M1CG-00-001 7-13...
Page 146 MAINTENANCE • Boom and Arm Joint Pin, Arm Cylinder Rod Pin and Bucket Cylinder Bottom Pin. M1CG-07-007 • Boom Cylinder Rod Pin and Arm Cylinder Bottom Pin. (Centralized greasing system) M195-07-012 7-14...
Page 147 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 Lower the bucket to the ground.
Page 148 MAINTENANCE Swing Internal Gear --- every 500 hours CAUTION: Adding or changing swing internal gear grease and rotating the upperstructure must be done by one person. Before you start, clear the area of all persons. Each time you leave the cab Lower the bucket to the ground.
Page 149 MAINTENANCE B. ENGINE Interval (hours) Parts Quantity 1000 2000 1. Engine Oil Oil Level Check 2. Engine Oil Change 12.0 L (3.2 US gal) 3. Engine Oil Filter Replacement Recommended Engine Oil Depending upon the expected air temperature range between oil changes, use the oil viscosity shown on the temperature chart below.
Page 150 MAINTENANCE Engine Oil Level --- check daily IMPORTANT: For most accurate readings, check the oil level every day before starting the machine. Be sure the machine is on a level surface. 1. Remove dipstick (1). Wipe oil off with a clean cloth. Reinsert dipstick (1).
Page 151 MAINTENANCE CAUTION: Engine oil may be hot. Take extra care to avoid burns. 8. Remove drain plug (5). Allow oil to drain through a clean cloth into a 12 liter container. 9. Remove drain plug (3). Allow oil to drain through a pipe (4) to container.
Page 152 MAINTENANCE C. TRANSMISSION Interval (hours) Parts Quantity 1000 2000 1. Travel Oil Level Check Reduction 2.5 L × 2 Change Gear (2.6 US qt × 2) M1CG-07-002 Brand Names of Recommended Oil Application Swing and Travel Reduction Gear Kind of Oil Gear oil Air Temp.
Page 153 MAINTENANCE Air Release Plug 1 Travel Reduction Gear (Oil Supply Plug) Check Oil Level --- every 250 hours Oil Level Check Plug 2 1. Park the machine on a level surface. Horizontal Oil Level 2. Rotate the travel motor until the imaginary line through plug (1) and plug (3) is vertical.
Page 154 MAINTENANCE Change Gear Oil --- every 2000 hours 1. Park the machine on a level surface. 2. Rotate the travel motor until the imaginary line through plug (1) and plug (3) is vertical. 3. Lower the bucket to the ground. 4.
Page 155 –10 to 40°C Temp. (–4 to 104°F) (14 to 104°F) (–4 to 104°F) (14 to 104°F) (–4 to 104°F) (14 to 104°F) Manufacturer Hitachi Super EX 46HN Super Hydro 46 WRHU Idemitsu Kosan British Petroleum Bartran HV46 Rando Oil Caltex Oil HD46 Rando Oil Texaco INC.
Page 156 MAINTENANCE INSPECTION AND MAINTENANCE OF HY- DRAULIC EQUIPMENT CAUTION: During operation, the parts of the hy- draulic system become very hot. Allow the machine to cool down before beginning inspection or maintenance. 1. Be sure that the machine is parked on a level, firm surface before servicing hydraulic equipment.
Page 157 MAINTENANCE 5. When adding hydraulic oil, always use the same brand of oil; do not mix brands of oil. As the machine is filled with Super EX 46HN when it is shipped from the factory, use it as a general rule. When selecting to use another brand of oil listed in the table “Brand names of recommended hydraulic oil”, be sure to completely replace the oil in the system.
Page 158 MAINTENANCE Check Hydraulic Oil Level --- daily IMPORTANT: Never run the engine without oil in hy- draulic oil tank. 1. Park the machine on a level surface. M1CC-07-002 2. Position the machine with the arm cylinder fully re- tracted and the bucket cylinder fully extended. 3.
Page 159 MAINTENANCE Drain Hydraulic Tank Sump --- every 250 hours IMPORTANT: Never run the engine without oil in hy- draulic oil tank. 1. Park the machine on a level surface with the upper- structure rotated 90° for easier access. M1CC-07-006 2. Lower the bucket to the ground. 3.
Page 160 MAINTENANCE Change Hydraulic Oil Suction Filter Cleaning --- every 4000 hours, 2500 hours or 1500 hours M1CC-07-006 CAUTION: Hydraulic oil may be hot. Wait for oil to cool before starting work. IMPORTANT: Hydraulic oil changing intervals differ according to kind of hydraulic oils used. (See Recommended Oil Chart in this Level Gauge group)
Page 161 MAINTENANCE 13. Remove suction filter and rod assembly (5). 14. Clean the filter and tank interior. If the filter is to be replaced, install new filter on the rod as shown. Tighten nut to 15 to 20 N m (1.5 to 2.0 kgf m). 15.
Page 162 MAINTENANCE 20. Remove air bleed plug (7) from the top of the pump. 21. Fill the pump with oil through plug (8) port. 22. Reinstall the plug. 23. Start the engine and run at slow idle. Put a “Do Not Operate”...
Page 163 MAINTENANCE Replace Hydraulic Tank Oil Filter --- every 1000 hours 1. Park the machine on a level surface. 2. Lower the bucket to the ground. 3. Turn the auto-idle switch off. 4. Run the engine at slow idle speed without load for five minutes.
Page 164 MAINTENANCE Replace Pilot Oil Filter --- every 1 000 hours 1. Park the machine on a level surface. 2. Lower the bucket to the ground. M1CC-07-002 3. Turn the auto-idle switch off. 4. Run the engine at slow idle speed without load for five minutes.
Page 165 MAINTENANCE Replace Swing Drain Filter Element --- every 4 000 hours CAUTION: Hot hydraulic oil may spout immedi- ately after operation, possibly causing severe burns. Be sure to wait for the oil and components to cool before starting any maintenance and in- M1CC-07-002 spection work.
Page 166 MAINTENANCE Replace Air Breather Element --- every 4000 hours CAUTION: Hydraulic oil may be hot just after operation. Hot hydraulic oil may spout, possibly causing severe burns. Be sure to wait for oil to cool before starting work. Replacement Procedures M1CC-07-006 1.
Page 167 MAINTENANCE Check Hoses and Lines --- daily --- every 250 hours CAUTION: Escaping fluid under pressure can penetrate the skin causing serious injury. To avoid this hazard, search for leaks with a piece of cardboard. Take care to protect hands and body from high-pressure fluids.
Page 168 (Use proper bend radius) Hose ends and Deformation or Replace fittings Corrosion (10) NOTE: Refer to the illustrations in Fig.1 for each check point location or for a descrip- M115-07-147 tion of the abnormality. Use genuine Hitachi parts. M115-07-148 M115-07-149 Fig.1 7-36...
Page 169 Replace Deformation Replace Loose Retighten M137-07-007 NOTE: Refer to the illustrations in Fig.2 for each check point location or for a descrip- tion of the abnormality. Use genuine Hitachi parts. Fig.2 Table 3. Oil cooler Interval(hours) Check Points Abnormalities Remedies...
Page 170 MAINTENANCE SERVICE RECOMMENDATIONS FOR HY- DRAULIC FITTINGS Two hydraulic fitting designs are used on this machine. Flat Face O-ring Seal Fitting (ORS Fitting) An O-ring is used on the sealing surfaces to prevent oil leakage. M104-07-033 1. Inspect fitting sealing surfaces (6). They must be free of dirt or defects.
Page 171 MAINTENANCE Metal Face Seal Fittings Fittings are used on smaller hoses and consist of a metal flare and a metal flare seat. 1. Inspect flare (10) and flare seat (9). They must be free of dirt or obvious defects. IMPORTANT: Defects in the tube flare cannot be re- paired.
Page 172 MAINTENANCE E. FUEL SYSTEM Tank capacity 120 L (31.7 US gal) Interval (hours) Parts Quantity 1000 2000 1. Drain Fuel Tank Sump 2. Check Water Separator 3. Replace Fuel Filter 4. Clean Feed Pump Strainer 5. Check Fuel — for leaks, cracks, etc. Hoses —...
Page 173 MAINTENANCE 8. To avoid condensation, fill the tank at the end of each day’s operation. Take care not to spill fuel on the machine or ground. Fuel tank capacity is 89 liters. Do not fill the tank more than specified. Stop filling when a yellow mark on fuel level gauge (3) becomes Yellow Mark...
Page 174 MAINTENANCE Drain Fuel Tank Sump --- daily 1. Park the machine on a level surface with the upper- structure rotated 90° for easier access. 2. Lower the bucket to the ground. 3. Turn the auto-idle off. 4. Run the engine at slow idle speed without load for five minutes.
Page 175 MAINTENANCE Check Water Separator --- every 50 hours Water separator (2) is a device to separate water from the fuel. The float inside the case will be raised when water is present. After the float is raised up to the water drain level marked on the outer diameter of the case, be sure to drain the water.
Page 176 MAINTENANCE Replace Fuel Filter --- every 500 hours 1. For safety and to protect the environment, always use proper containers when draining fuel. Do not pour fuel onto the ground, down a drain or into a stream, pond or lake. Dispose of waste fuel properly. 2.
Page 177 MAINTENANCE Bleed Air from Fuel System IMPORTANT: Air in the fuel system may make the en- gine hard to start or make it run irregu- larly. After draining water and sediment from the water separator, replacing the fuel filter, cleaning the feed pump strainer or running the fuel tank dry, be sure to bleed the air from the fuel sys- tem.
Page 178 MAINTENANCE Clean Feed Pump Strainer --- every 1 000 hours, Cleaning Procedure 1. Remove fuel inlet side joint bolt (3) from water sepa- rator (2). Remove plug (5) and strainer (4) out of joint bolt (3). Wash them in a cleaning oil. 2.
Page 179 (Use proper bend radius) M137-07-005 Hose ends and fittings Deformation or Replace Corrosion (7) NOTE: Refer to the illustrations in Fig.1 for each check point location or for a description of the abnormality. Use genuine Hitachi parts. M137-07-006 Fig.1 7-47...
Page 180 MAINTENANCE F. AIR CLEANER Interval (hours) Parts Quantity 1000 2000 1. Air Cleaner Outer Cleaning (Or when indicator lit) Element Replacement After cleaning 6 times or 1 year 2. Air Cleaner Inner Element Replacement When outer element is replaced (Opt.) Clean the Air Cleaner Element --- every 250 hours or when the restriction in- dicator comes ON...
Page 181 MAINTENANCE CAUTION: Use reduced compressed air pres- sure. (Less than 0.2 MPa, 2 kgf/cm ). Clear area of bystanders, guard against flying chips, and wear personal protection equipment including goggles or safety glasses. Element 10. Clean element (1) using compressed air. Direct the air to the inside of the filter element, blowing out.
Page 182 NOTE: Maintenance required only during first time check. Before leaving the Hitachi factory, the cooling system is filled with a mixture of water and Genuine Hitachi Long-Life Coolant. As long as Genuine Hitachi Long-Life Coolant is used, the service in- tervals between changing the coolant is once every two years, or every 4 000 hours, whichever comes first.
Page 183 MAINTENANCE Antifreeze Mixing Table Mixing Refill capacities Air temperature ratio Antifreezes Soft Water °C °F liters US gal liters US gal －1 2.76 0.73 6.44 1.70 2.76 0.73 6.44 1.70 －4 2.76 0.73 6.44 1.70 －7 2.76 0.73 6.44 1.70 －11 3.22 0.85...
Page 184 MAINTENANCE Check Coolant Level --- daily CAUTION: Do not loosen radiator filler cap (1) unless the system is cool. Loosen the cap slowly to the stop. Release all pressure before removing the cap. With the engine cold, the coolant level must be between the FULL and LOW marks on coolant reservoir (2).
Page 185 --- twice a year (in spring and autumn) Clean Radiator Interior --- when changing coolant NOTE: Before leaving the Hitachi Factory, the cooling system is filled with a mixture of water and Genuine Hitachi Long-Life Coolant. As long as Genuine Hitachi Long-Life Coolant is...
Page 186 MAINTENANCE Clean Radiator and Oil Cooler Core Outside --- every 500 hours Inside --- Once a year Clean Oil Cooler Front Screen --- every 500 hours Clean Air Conditioner Condenser (If equipped) --- every 500 hours CAUTION: Use reduced compressed air pres- sure (Less than 0.2 MPa, 2 kgf/cm ) for cleaning purposes.
Page 187 MAINTENANCE H. ELECTRICAL SYSTEM IMPORTANT: Improper radio communication equip- ment and associated parts, and/or im- proper installation of radio communica- tion equipment effects the machine's electronic parts, causing involuntary movement of the machine. Also, improper installation of electrical equipment’s may cause machine failure and/or a fire on the machine.
Page 188 MAINTENANCE If acid is swallowed: 1. Drink large amounts of water or milk. 2. Then drink milk of magnesia, beaten eggs, or vegetable oil. 3. Get medical attention immediately. IMPORTANT: Add water to batteries in freezing weather before you begin operating your machine for the day, or else charge the batteries.
Page 189 MAINTENANCE Electrolyte Level Check 1. Check the electrolyte level at least once a month. 2. Park the machine on level ground and stop the en- gine. 3. Check the electrolyte level. 3.1 When checking the level from the battery side: Clean around the level check lines with a wet towel.
Page 190 MAINTENANCE Check electrolyte specific gravity CAUTION: Battery gas can explode. Keep sparks If you spill acid on yourself: and flames away from batteries. Use a flashlight 1. Flush your skin with water. to check the battery electrolyte level. 2. Apply baking soda or lime to help neu- tralize the acid.
Page 191 MAINTENANCE REPLACE BATTERIES Your machine has two 12-volt batteries with negative (−) ground. If one battery in a 24-volt system has failed but the other is still good, replace the failed battery with one of the same type. For example, replace a failed maintenance-free bat- tery with a new maintenance-free battery.
Page 192 MAINTENANCE REPLACING FUSES If any electrical equipment fails to operate, first check the fuses. Fuse box is located behind the operator’s seat. A fuse location/specification decal is attached to the fuse box cover. Remove the fuse box cover by lifting it upward. Spare fuses are located on the underside of the cover.
Page 193 MAINTENANCE I. MISCELLANEOUS Interval (hours) Parts Quantity 1000 2000 4000 1. Check Bucket Teeth for Wear and — Looseness 2. Change Bucket As required — 3. Convert Bucket Connection Into Face As required — Shovel 4. Adjust Bucket Linkage As required 5.
Page 194 MAINTENANCE Check Bucket Teeth --- daily Check the bucket teeth for wear and looseness Replace teeth (1) if tooth wear exceeds the designated service limit shown below. Dimension A in mm (in) Limit of Use M104-07-056 156 (6.1 in) 80 (3.1 in) Replacing procedure CAUTION: Guard against injury from flying pieces of metal.
Page 195 MAINTENANCE 3. Clean shank (6) surface. 4. Install rubber pin lock (4) into shank (6) hole as shown. RIGHT WRONG WRONG M104-07-060 5. Position new tooth (1) over shank (6). RIGHT WRONG WRONG M104-07-061 6. Drive locking pin (5) fully into the hole as shown. WRONG RIGHT M104-07-062...
Page 196 MAINTENANCE Change Bucket 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, and safety equipment appropriate to the job. 1. Park the machine on a level surface. Lower the bucket to the ground and position it with the flat sur- Bucket Boss face resting on the ground.
Page 197 MAINTENANCE Convert Bucket Connection Into Face Shovel CAUTION: When driving the connecting pins in O-Ring Shift or out, guard against injury from flying pieces of metal or debris; wear goggles or safety glasses, and safety equipment appropriate to the job. IMPORTANT: Provide ample space for turning the bucket 180°.
Page 198 MAINTENANCE Adjust the Bucket Linkage 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 as follows: 1. Park the machine on a level surface. Lower the bucket to the ground with the flat side down so that the bucket will not roll.
Page 199 MAINTENANCE Remove the Travel Levers The travel levers may be removed if desired. 1. Park the machine on a level surface. 2. Lower the bucket to the ground. 3. Turn the auto-idle switch off. 4. Turn the key switch OFF. Remove the key. 5.
Page 200 MAINTENANCE 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. Place blocks under the machine frame to support the machine.
Page 201 MAINTENANCE Loosen the Track 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). IMPORTANT: When gravel or mud is packed between sprockets and track links, remove it be- fore loosening.
Page 202 MAINTENANCE Clean and Replace Air Conditioner Filter Clean Filter Circulating Air Filter --- every 500 hours Fresh Air Filter --- every 500 hours Replace Filter Circulating Air Filter --- After cleaning 6 times or so Fresh Air Filter --- After cleaning 6 times or so Removing Fresh Air Filter 1.
Page 203 MAINTENANCE CAUTION: Use reduced compressed air pres- Notch sure (less than 0.2 MPa, 2 kgf/cm ) for cleaning purposes. Clear the area of bystanders, guard against flying chips, and wear personal protec- tion equipment including eye protection. Cleaning Clean both the external and internal filters by blowing compressed air or washing with water.
Page 204 MAINTENANCE Check the Air Conditioner --- daily Oil Seepage Check pipe connections for refrigerant gas leakage. If oil seepage is found around pipe connections, as illustrated, it indicates possible gas leakage. Check refrigerant quantity. － After running the engine at 1500 min (rpm) for 2 to 3 minutes, check refrigerant quantity through the sight glass on the receiver tank.
Page 205 MAINTENANCE Clean Cab Floor --- as required IMPORTANT: If the A/C is operated without removing the cover, the A/C will not operate effi- ciently so that its cooling ability is re- duced. When cleaning the cab floor with tap water, spray the floor only. Take care not to splash the surrounding area.
Page 206 MAINTENANCE Check Injection Nozzle --- every 500 hours See your authorized dealer. Retighten Cylinder Head Bolt --- as reguired See your authorized dealer. Inspect and Adjust Valve Clearance --- every 1 000 hours See your authorized dealer. Check Fuel Injection Timing --- as reguired See your authorized dealer.
Page 207 MAINTENANCE Check Tightening Torque of Bolts and Nuts --- every 250 hours (first time after 50 hours) Check tightness after the first 50 hours then every 250 hours. Tighten to torque shown if any are loose. Bolts and nuts should be replaced with those of the same or higher grade.
Page 208 MAINTENANCE Tightening Torque Chart Hexagon Wrench Wrench Bolt Dia. Size Size M552-07-091 M552-07-090 M157-07-225 Socket Bolt (kgf m) (lbf ft) (kgf m) (lbf ft) (kgf m) (lbf ft) (3.1) (22) (2.0) (15.0) (1.0) (7.4) (6.6) (48) (5.1) (37) (2.0) (15.0) (11.0) (81) (9.2)
Page 209 MAINTENANCE 1. Retighten the engine insulation rubber mounting bolts. Tool: 24 mm Torque: 270 N m (27.5 kgf m, 200 lbf ft) M1CD-07-030 2. Retighten the engine bracket mounting bolts. Tool: 22 mm Torque: 140 N m (14.3 kgf m, 103 lbf ft) 3.
Page 210 MAINTENANCE 5. Retighten the ORS fittings for hydraulic hoses and piping. Tool (mm) 25.0 29.5 137 175 205 Torque kgf m lbf·ft 101 129 151 6. Retighten the pump mounting bolts. Tool: 19 mm Torque: 90 N m (9.2 kgf m, 66 lbf ft) M1CG-07-027 7.
Page 211 MAINTENANCE 8. Retighten the control valve bracket mounting bolts. Tool: 22 mm Torque: 140 N m (14.3 kgf m, 103 lbf ft) M1CG-07-028 9. Retighten the swing device mounting bolts. Tool: 24 mm Torque: 210 N m (21.5 kgf m, 155 lbf ft) M1CG-07-029 10.
Page 212 MAINTENANCE 11. Retighten the cab mounting nuts. Tool: 24 mm Torque: 210 N m (21.5 kgf m, 155 lbf ft) M1CG-07-003 12. Retighten the swing bearing mounting bolts to the upperstructure. Tool: 24 mm Torque: 270 N m (27.5 kgf m, 200 lbf ft) M197-07-042 Retighten the swing bearing mounting bolts to the undercarriage.
Page 213 MAINTENANCE 14. Retighten the sprocket mounting bolts. Tool: 24 mm Torque: 270 N m (27.5 kgf m, 200 lbf ft) M1CC-07-019 15. Retighten the upper roller mounting bolts. Tool: 22 mm Torque: 140 N m (14.3 kgf m, 103 lbf ft) M152-07-046 16.
Page 214 MAINTENANCE 18. Retighten the cover mounting bolts. Tool: 10, 17, 19 mm Torque: 10, 50, 90 N m (1.1, 5.1, 9.2 kgf m) (7.4, 37, 66 lbf ft) 19. Retighten coupling and T-bolt clamp Coupling Tool: 13 mm Torque: 10.3 to 12.4 N m (1.05 to 1.26 kgf m) (7.6 to 9.1 lbf ft) T-bolt Clamp...
Page 215 MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS Operating Conditions Precautions for Maintenance Muddy Soil, Rainy or Before Operation: Check the tightness of plugs and all drain cocks. Snowy Weather After Operation: Clean the machine and check for cracks, damaged, loose or missing bolts and nuts.
Page 216 MAINTENANCE UNDER SPECIAL ENVIRONMENTAL CONDITIONS MEMO ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Page 217 STORAGE STORING THE MACHINE 1. Inspect the machine. Repair worn or damaged parts. Install new parts if necessary. 2. Clean the primary air cleaner element. 3. Retract all hydraulic cylinders, if possible. If not, coat exposed cylinder rods with grease. 4.
Page 218 STORAGE REMOVING THE MACHINE FROM STORAGE CAUTION: Start the engine ONLY in a well-ventilated place. 1. Remove grease from the cylinder rods if coated. 2. Adjust alternator and fan belt tension. 3. Fill the fuel tank. Bleed air from the fuel system. Check all fluid levels.
Page 219 TROUBLESHOOTING ENGINE Problem Cause Solution Engine Cranks But Will No fuel Add fuel. Not Start or Hard to Start Bleed air. Wrong fuel Drain tank. Use correct fuel. Contaminated fuel Drain tank and add clean fuel. Low battery power Charge or install new battery. Injection pump See your authorized dealer.
Page 220 TROUBLESHOOTING ENGINE Problem Cause Solution Engine Not Developing Full Air filters plugged Replace filter elements. Power Fuel line restricted Repair or replace fuel line. Contaminated fuel Drain fuel tank and clean outlet screen. Refill. Fuel filters plugged Change filters. Plugged vent in fuel tank cap Clean or install new cap.
Page 221 TROUBLESHOOTING ENGINE Problem Cause Solution Coolant Temperature Too Low Thermostat See your authorized dealer. Temperature gauge or sending unit See your authorized dealer. Low Engine Oil Pressure Engine oil pump or pump drive See your authorized dealer. Low oil level Add oil.
Page 222 TROUBLESHOOTING ENGINE Problem Cause Solution Nothing Works Battery Recharge or replace. Nothing Works Battery relay Replace relay. (Except clock) Batteries Undercharged Loose or corroded connections Clean and tighten or replace batteries. Alternator belt loose Tighten or install new belt. Alternator not charging See your authorized dealer.
Page 223 TROUBLESHOOTING ENGINE Problem Cause Solution Exhaust Gas is White Wrong fuel Drain tank. Use correct fuel. Cold engine Run engine until warm. Thermostat faulty or too “cool” See your authorized dealer. Injection pump out of time See your authorized dealer. Coolant leakage into engine cylinder See your authorized dealer.
Page 224 TROUBLESHOOTING ELECTRICAL SYSTEM Problem Cause Solution Engine Cranks Slowly Battery discharged or will not hold a Replace battery. charge Starter “dragging” See your authorized dealer. Low battery voltage Recharge or replace battery. Starter Motor Continues to Start relay stuck See your authorized dealer. Run After Engine Starts Starter solenoid stuck See your authorized dealer.
Page 225 TROUBLESHOOTING ELECTRICAL SYSTEM Problem Cause Solution No Indicators in Gauge Panel Circuit board See your authorized dealer. Operate Wiring harness See your authorized dealer. Fuse Replace fuse. Indicator Light in Gauge Panel Bulb Replace bulb. is Inoperative Fuse Replace fuse. Sender Do sender check.
Page 226 TROUBLESHOOTING MODE SELECTION Problem Cause Solution Fast/Slow Travel Speed Travel mode switches See your authorized dealer. Does Not Function Pilot pressure switch (Travel) See your authorized dealer. Pump delivery pressure sensor wire See your authorized dealer. harness Main controller See your authorized dealer. Solenoid valve unit See your authorized dealer.
Page 227 TROUBLESHOOTING CONTROL LEVERS Problem Cause Solution Moves Hard Corroded joint See your authorized dealer. Worn out pusher See your authorized dealer. Does Nothing Worn out pusher See your authorized dealer. Pilot valve See your authorized dealer. Does Not Return to Neutral Pilot valve See your authorized dealer.
Page 228 TROUBLESHOOTING HYDRAULIC SYSTEM Problem Cause Solution Hydraulic Oil Overheats Relief valve See your authorized dealer. Contaminated oil Drain oil and refill. Travel motors See your authorized dealer. Improperly adjusted hydraulic See your authorized dealer. components Oil Foams Air leak in line from reservoir to pump Repair leak or see your authorized dealer.
Page 229 TROUBLESHOOTING HYDRAULIC SYSTEM Problem Cause Solution One Control Lever Does Not Relief valve pressure low See your authorized dealer. Work Tube or hose damaged Repair or replace. Hydraulic fittings loose Tighten. Damaged O-rings in fittings Install new O-ring. Hydraulic Pump See your authorized dealer.
Page 230 TROUBLESHOOTING HYDRAULIC SYSTEM Problem Cause Solution Travel is Not Smooth Rocks or mud “jammed” in track frame Remove and repair. Travel brake not releasing See your authorized dealer. Swing Does Not Work Swing brake release valve See your authorized dealer. Swing motor See your authorized dealer.
Page 231 SPECIFICATIONS SPECIFICATIONS M1CG-01-01-009 Model ZAXIS75US-A Hydraulic Excavator Type of Operator’s Station Front-End Attachment Mono Boom (1.62m Arm) (5 ft 4 in Arm) Shoe Type Grouser Shoe Standard Bucket Capacity (Heaped) 0.28 m (0.37 yd Operating Weight 7100 kg (15650 lb) Basic Machine Weight 5800kg (12790 lb) −...
Page 232 SPECIFICATIONS WORKING RANGES Shovel M1CG-12-001 Backhoe M1CG-01-01-010 1.62 m (5'4") Arm 2.12 m(7'0") Arm Category Item Backhoe Shovel Backhoe shovel ft·in ft·in ft·in ft·in A: Maximum Digging Reach 6430 21'1" 6570 21'7" 6920 22'8" 7050 23'2" B: Maximum Digging Depth 4110 13'6"...
Page 233 SPECIFICATIONS SHOE TYPES AND APPLICATIONS 450 mm(18") 600 mm(24") 500 mm(20") 700 mm(28") 450 mm(18") 450 mm(18") 450 mm(18") Shoe Width Grouser Grouser Triangular Triangular Pad Crawler Rubber Pad Flat Shoe Shoe Shoe Shoe Shoe Shoe Shoe For Ordinary For Weak For Paved For Weak For Weak...
Page 234 SPECIFICATIONS BUCKET TYPES AND APPLICATIONS Bucket Capacity Bucket Width Front-End Attachment mm (in) Bucket PCSA CECE With Side Without Side 1.62 m Arm 2.12 m Arm Heaped Heaped Cutters Cutters (5 ft 4 in) (7 ft 0 in) 0.13 (0.17) 0.12 (0.16) 450 (18") 360 (14")
Page 235 OPTIONAL ATTACHMENTS AND DEVICES BLADE LEVER Use blade lever (1) on the operator’s right to raise and lower the blade. When the lever is released, it automatically returns to neu- tral, keeping the blade in its position until the lever is oper- ated again.
Page 236 OPTIONAL ATTACHMENTS AND DEVICES AVOID HITTING BLADE WITH FRONT-END ATTACHMENT WRONG 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 237 OPTIONAL ATTACHMENTS AND DEVICES Maintenance Blade Joint Pins --- every 500 hours • Blade joint pins • Blade cylinder rod/bottom pins M1CC-00-001 M1CC-07-021 Transporting Machine with Blade When the machine is equipped with the long arm and blade, position the blade in the opposite direction from the front attachment.
Page 238 OPTIONAL ATTACHMENTS AND DEVICES SPECIFICATIONS (with Blade) M1CG-13-002 Model ZAXIS75US-A Hydraulic Excavator Type of Operator’s Station Front-End Attachment Mono Boom (1.62 m Arm) (5 ft 4 in Arm) Standard Bucket Capacity (Heaped) 0.28 m (0.37yd Operating Weight 7600 kg (16760 lb) Basic Machine Weight 6300 kg (13890 lb) −...
Page 239 OPTIONAL ATTACHMENTS AND DEVICES WORKING RANGES (with Blade) F’ F’ Shovel Backhoe M1CG-01-01-011 M1CG-12-002 1.62 m (5'4") Arm 2.12 m(7'0") Arm Category Item Backhoe Shovel Backhoe shovel ft·in ft·in ft·in ft·in A: Maximum Digging Reach 6430 21'1" 6570 21'7" 6920 22'8"...
Page 240 OPTIONAL ATTACHMENTS AND DEVICES SHOE TYPES AND APPLICATIONS (with Blade) 450 mm(18") 600 mm(24") 500 mm(20") 700 mm(28") 450 mm(18") 450 mm(18") 450 mm(18") Shoe Width Grouser Grouser Triangular Triangular Pad Crawler Rubber Pad Flat Shoe Shoe Shoe Shoe Shoe Shoe Shoe For Ordinary...
Page 241 OPTIONAL ATTACHMENTS AND DEVICES BREAKER OPERATION The breaker can be operated using attachment pedal (1) located on the left front of the seat, as illustrated. CAUTION: Be sure to lock attachment pedal (1) with pedal lock (2) when the attachment pedal is not in use.
Page 242 OPTIONAL ATTACHMENTS AND DEVICES PRECAUTIONS FOR BREAKER OPERATION WRONG CAUTION: Machine stability is reduced as the breaker is much heavier than the bucket. When using a breaker, the machine is more apt to tip over. Also, flying objects may hit the cab or other part of the machine.
Page 243 OPTIONAL ATTACHMENTS AND DEVICES • Do not operate the breaker in water. Doing so will cause rust and seal damage, resulting in damage to WRONG the hydraulic system components. M104-05-059 • Do not use breaker for lifting operation. The machine tipping over and/or breaker damage may result.
Page 244 OPTIONAL ATTACHMENTS AND DEVICES • Do not operate breaker with the arm positioned verti- cally. Excessive vibration to the arm cylinder will occur, WRONG causing oil leakage. M1CC-07-030 • Press the breaker so that the chisel (the axis) is posi- tioned and thrusted perpendicular to the object.
Page 245 OPTIONAL ATTACHMENTS AND DEVICES BREAKER MAINTENANCE Change Hydraulic Oil and Replace Hydraulic Oil Tank Filter Hydraulic breaker operation subjects the hydraulic system to become contaminated faster and to deteriorate the hy- draulic oil quickly. For this reason, hydraulic oil must be changed and the hydraulic oil tank filter must be replaced more often than the machine attached with a bucket.
Page 246 OPTIONAL ATTACHMENTS AND DEVICES HYDRAULIC CRUSHER Machine stability, applicable hydraulic oil pressure and oil quantity for crusher, etc. must be examined when selecting a crusher. Be sure to consult your authorized dealer when selecting a crusher. For operational instructions, refer to the crusher instruction manual.
Page 247 OPTIONAL ATTACHMENTS AND DEVICES PRECAUTIONS FOR CRUSHER OPERATION Prevent machine tipping over and damage to the front at- tachment. Observe the following precautions for crusher operation. CAUTION: Machine stability is reduced as crusher is much heavier than bucket. When operating with a crusher, the machine is more apt to tip over.
Page 248 OPTIONAL ATTACHMENTS AND DEVICES • When operating the crusher up high with the boom fully raised, be careful of falling objects. WRONG M107-05-048 • When operating the crusher on a floor in a building, WRONG first confirm that the floor has sufficient strength to support the load caused by crushing, in addition to the machine weight.
Page 249 Closing Upper Front Window......1-37 --- If Equipped ..........1-5 Confirm Direction of Machine to be Driven..S-9 Hydraulic System ........7-23, 11-9 Control Lever (HITACHI Pattern) ....... 5-3 Control Lever (ISO Pattern) ....... 5-2 Control Levers ........... 11-9 INDEX ..............14-1 Coolant Temperature Gauge ......1-4 Inspect Machine ..........
Page 250 INDEX Installing Fire Extinguisher......... 1-18 Parking the Machine ..........4-10 Investigate Job Site Beforehand......S-8 Parking the Machine on Slopes ......4-10 Periodic Replacement of Parts ......7-7 Pilot Control Shut-Off Lever ....... 1-19, 5-4 Jump Starting ............S-7 Power Mode ............5-9 Power Mode Switch..........1-11 Practice Safe Maintenance .......
Page 251 INDEX Storing the Machine........... 10-1 Support Machine Properly .........S-20 Switch Panel ............1-9 Switch Panel (Optional) ........1-14 TRANSPORTING ..........6-1 TROUBLESHOOTING ........11-1 Tips for Optimal Air Conditioner Usage ..... 1-28 Towing Machine a Short Distance ....... 4-7 Transmission ........... 7-20 Transporting by Road ..........
Page 252 INDEX MEMO ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................14-4...
Page 254 URL:http://www.hitachi-c-m.com This book is printed on recycled paper.

Hitachi Zaxis 75US-A Operator's Manual

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