Table of Contents
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This book is printed on recycled paper.
PRINTED IN JAPAN (E) 2014, 12
PART NO.
ENMADC-1-3
Operator's Manual
33U
-5A
38U
-5A
48U
-5A
55U
-5A
65USB
-5A
Hydraulic Excavator
Serial No.
ZX33U
030002 and up
-5A
ZX38U
050002 and up
-5A
ZX48U
030002 and up
-5A
ZX55U
050002 and up
-5A
ZX65USB
020001 and up
-5A
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Table of Contents
Related Manuals for Hitachi Zaxis 65USB-5A
Summarization of Contents
Safety
Recognize Safety Information
Learn to identify and understand safety alert symbols and follow precautions for personal injury prevention.
Understand Signal Words
Understand the meaning of signal words (DANGER, WARNING, CAUTION, IMPORTANT, NOTE) used on safety signs.
Follow Safety Instructions
Adhere to all safety signs and messages, maintain signs, learn operations, use authorized personnel, and keep the machine in good condition.
Prepare for Emergencies
Be prepared for fires or accidents with first aid kits, fire extinguishers, and emergency procedure guidelines.
Wear Protective Clothing
Select and wear appropriate close-fitting clothing and safety equipment suitable for the job.
Protect Against Noise
Prevent hearing impairment or loss by wearing suitable hearing protection devices against loud noises.
Inspect Machine
Perform a daily walk-around inspection before starting the machine to identify and prevent potential hazards.
General Precautions for Cab
Maintain a clean cab, avoid clutter, do not store flammable items, and refrain from using headphones while operating.
Use Handrails and Steps
Prevent injuries from falls by using handrails and steps correctly, maintaining three-point contact, and avoiding jumps.
Adjust the Operator's Seat
Properly adjust the operator's seat for fatigue prevention and correct control operation.
Ensure Safety Before Rising from or Leaving Operator’s Seat
Lower attachment, lock pilot control lever, and stop the engine before leaving the operator's seat.
Fasten Your Seat Belt
Securely fasten the seat belt at all times during operation to minimize injury risk in case of overturning.
Move and Operate Machine Safely
Take care for bystanders, ensure alarms and lights are functional, and operate only from the operator's seat.
Operate Only from Operator's Seat
Start the engine only when seated, with all control levers in neutral, and confirm safety around the machine.
Jump Starting
Follow correct jump-starting procedures to prevent battery explosions or runaway machines. Use two people.
Keep Riders off Machine
Prevent rider injuries and ensure operator visibility by allowing only the operator on the machine.
Precautions for Operations
Investigate the work site, wear appropriate safety equipment, and clear personnel and obstacles from the work area.
Investigate Job Site Beforehand
Assess excavation edges, ground conditions, and potential hazards like falling stones or weak footing.
Install OPG Guard
Equip the machine with an OPG guard if operating in areas with falling stones or debris.
Restriction of Attachment Installation
Do not install attachments that exceed the machine's specified weight for structural integrity.
Provide Signals for Jobs Involving Multiple Machines
Establish common signals and appoint a signal person to coordinate jobs involving multiple machines.
Confirm Direction of Machine to Be Driven
Verify the undercarriage position relative to the operator's position before driving to avoid incorrect lever operation.
Drive Machine Safely
Confirm travel lever direction, detour obstructions, and carefully operate on slopes to prevent tipping or skidding.
Avoid Injury from Rollaway Accidents
Prevent rollaways by parking on level ground, lowering attachments, and properly shutting down the engine.
Avoid Injury from Back-Over and Swing Accidents
Always look around before backing or swinging, keep alarms functional, and use a signal person if view is obstructed.
Keep Person Clear from Working Area
Set up barriers and NO ADMISSION signs to prevent entry into work areas with potential hazards.
Never Position Bucket Over Anyone
Never lift, move, or swing the bucket above people or vehicle cabs to prevent injury or damage.
Avoid Undercutting
Position the undercarriage perpendicular to excavation edges to allow retreat if footing collapses.
Avoid Tipping
Operate carefully on grades, keep bucket low, reduce speed, and avoid changing direction on slopes.
Never Undercut a High Bank
Avoid undercutting high banks or slopes to prevent edges from collapsing or causing landslides.
Dig with Caution
Check for underground cables/lines before digging to prevent explosions or fires.
Operate with Caution
Be careful of overhead obstacles like bridges to prevent damage and personal injury.
Avoid Power Lines
Maintain safe distances from electric lines to prevent serious injury or death from electric shock.
Precautions for Lightning
Stop operation immediately if lightning is close, evacuate to a safe place, or stay in the cab.
Object Handling
Comply with regulations for craning, use undamaged lifting tools, keep people away from loads, and never attach slings to bucket teeth.
Protect Against Flying Debris
Guard against flying debris by wearing safety glasses and keeping bystanders away from the working area.
Park Machine Safely
Park on a firm, level surface, lower attachments, shut down the engine properly, and lock all access doors.
Handle Fluids Safely−Avoid Fires
Handle flammable fluids with care, avoid refueling near flames, store fluids away from fire hazards.
Transport Safely
Prevent machine turnover during loading/unloading by following regulations, selecting appropriate ramps, and using signals.
Practice Safe Maintenance
Understand procedures, keep work area clean, avoid spraying water inside cab, and keep hands away from moving parts.
Warn Others of Service Work
Prevent unexpected machine movement during service by attaching a 'Do Not Operate' tag.
Support Machine Properly
Securely support the machine or attachment if working on a lifted machine; never work under a jack-supported machine.
Stay Clear of Moving Parts
Prevent entanglement by ensuring hands, feet, clothing, jewelry, and hair do not contact rotating parts.
Prevent Parts from Flying
Avoid injury from high-pressure grease or parts flying off track adjusters and travel reduction gears.
Avoid Injury from Attachment Falling Accident
Prevent injury from falling attachments by using platforms during replacement and securely storing attachments.
Prevent Burns
Avoid severe burns from hot spraying fluids or surfaces by waiting for components to cool before maintenance.
Replace Rubber Hoses Periodically
Periodically replace rubber hoses to prevent fire, fluid injection, or attachment falling due to deterioration.
Avoid High-Pressure Fluids
Prevent serious injury or death from high-pressure fluid penetration by relieving pressure before disconnecting lines.
Prevent Fires
Check for oil leaks and electrical shorts, clean up flammable materials, and ensure key switch function.
Evacuating in Case of Fire
Evacuate the machine immediately if a fire breaks out, stopping the engine if possible, and using a fire extinguisher.
Beware of Exhaust Fumes
Prevent asphyxiation from exhaust fumes by ensuring adequate ventilation or using an exhaust pipe extension.
Precautions for Welding and Grinding
Perform welding/grinding in ventilated areas, store flammables safely, use qualified personnel, and recheck for smoldering.
Avoid Heating Near Pressurized Fluid Lines
Prevent severe burns by avoiding heat near pressurized fluid lines and installing temporary fire-resistant guards.
Avoid Applying Heat to Lines Containing Flammable Fluids
Do not weld or flame cut pipes containing flammable fluids; clean them thoroughly first.
Precautions for Handling Accumulator and Gas Damper
Handle accumulators and gas dampers carefully to prevent explosion due to high-pressure nitrogen gas.
Remove Paint Before Welding or Heating
Prevent sickness from hazardous fumes by removing paint in well-ventilated areas and wearing respirators.
Beware of Asbestos and Silicon Dust and Other Contamination
Prevent health risks by avoiding inhalation of dust, spraying water, and using upwind operation with masks.
Prevent Battery Explosions
Keep sparks and flames away from batteries, use correct charging procedures, and check electrolyte levels.
Service Air Conditioning System Safely
Handle refrigerants safely, avoid skin contact, use recovery systems, and never touch the refrigerant.
Handle Chemical Products Safely
Handle hazardous chemicals with care, check SDS for risks, follow procedures, and use recommended equipment.
Dispose of Waste Properly
Dispose of waste properly to protect the environment, using leakproof containers and complying with local regulations.
Never Ride Attachment
Never allow anyone to ride attachments or loads; this is an extremely dangerous practice.
Precautions for Communication Terminal
Be aware of potential electronic device malfunction from radio waves and inquire with manufacturers.
Precaution for Communication Terminal Equipment
Maintain distance between medical devices and communication terminals to prevent interference.
Operator's Station
Layout
Identifies and illustrates the various controls and components within the operator's station.
Key Switch
Details the functions of the key switch positions: OFF, ON, and START.
Switch Panel
Explains the operation of switches for work lights, wipers, and travel mode selection.
Monitor
Describes the monitor's features including meters, warning indicators, and work mode selection.
Basic Screen
Details the components and indicators displayed on the basic screen of the monitor.
Indicators
Explains the overheat, engine oil pressure, alternator, and fuel level indicators and their warnings.
How to Use Screens
Provides instructions on displaying the basic screen and understanding initial indicator displays.
Display of Meters
Lists the items displayed on the monitor, including clock, fuel gauge, hour meter, and coolant temperature.
Preheat Indicator
Explains the automatic preheating check and how the preheat indicator functions.
Security Status Indicator (Optional)
Describes the display of the security status indicator when the numeric keypad is connected.
ECO/PWR Mode Selector Switch
Explains the selection between ECO and PWR engine speed modes for efficient operation.
Overload Alarm Selector (Optional)
Details the overload alarm function, its display, and how to turn it ON/OFF.
Auto-Idle Switch
Explains the auto-idle function, its indicator, and when it is enabled.
Travel Mode Indicator
Shows how the selected travel mode (fast/slow) is displayed on the monitor.
Work Light Indicator
Indicates when the work lights are turned ON via the switch panel.
Hour Meter
Displays the total accumulated machine operation hours since starting work.
Clock
Displays the present time, with options for 24h/12h/No display.
Fuel Gauge
Indicates the remaining fuel amount and warns when refueling is necessary.
Coolant Temperature Gauge
Indicates the engine coolant temperature and warns of potential issues.
Operating Status Icon Display
Displays icons for travel mode, work light, and security settings.
Alarm Occurrence Screen
Details the screens displayed for errors and warnings, including codes and buzzers.
Alarm List Display
Explains how to access and interpret the alarm list on the menu screen.
Contents of Alarms
Lists error and warning codes, their meanings, and recommended remedies.
DTC Code List
Provides a diagnostic trouble code (DTC) list for monitor display codes and their error contents.
Main Menu (MENU)
Describes how to access the main menu screen from the basic screen.
Clock
Provides instructions for adjusting the clock settings and display mode.
Display Mode Setting
Explains how to change the display mode for the clock (24h, 12h, No display).
Trip
Explains the functions of the trip meter for tracking operation hours against a preset hour.
Displaying Trip Meter (1)
Details the procedure to select and display Trip Meter (1) from the menu.
Displaying Trip Meter (2)
Describes how to access and display Trip Meter (2) using menu switch shortcuts.
Change Trip Meter Set Time
Provides instructions on how to set the time for Trip 1 and Trip 2.
Brightness Adjustment
Explains how to adjust the monitor brightness in 5 levels and set night mode.
Heater Operation (ZX33U-5A, 38U-5A, 48U-5A, 55U-5A)
Details the control panel functions for heater operation, including blower and temperature settings.
Tips for Optimal Heater Usage
Provides advice for optimal heater use, including clearing clouded windows and off-season maintenance.
Air Conditioner Operation (Optional)
Explains the control panel functions for air conditioner operation: cooling, heating, and defrosting.
Tips for Optimal Air Conditioner Usage
Offers guidance for rapid cooling, clearing clouded windows, and off-season maintenance for the air conditioner.
Radio (Cab equipped machine) (Optional)
Identifies the radio/clock unit and its location within the cab.
AM/FM Radio Operation (Cab equipped machine)
Details the part names and functions for AM/FM radio operation and basic radio controls.
Sound Adjustment
Explains how to adjust balance, treble, and bass controls for the radio's sound output.
Digital Clock Setting Procedure
Provides steps for setting the digital clock, including adjusting time units and deactivating time adjustment.
Door Lock Release Lever (Cab equipped machine)
Describes how to operate the door lock release lever to unlock the cab door.
Opening Upper Front Window (Cab equipped machine)
Details the procedure for opening and closing the upper front window and removing the lower window.
Adjusting the Seat
Explains how to adjust the seat fore-aft and locate the tool box and seat back box.
Emergency Exit (Cab equipped machine)
Provides methods for escaping the cab in an emergency using doors, windows, or evacuation tools.
Seat Belt
Instructs on the proper use, inspection, and replacement of seat belts for operator safety.
Room Lamp (Cab equipped machine)
Explains how to turn the cab room lamp ON and OFF using the switch.
Break-In
Breaking in New Machine
Emphasizes the importance of proper break-in operation to ensure machine service life and performance.
Operating the Engine
Inspect Machine Daily Before Starting
Lists daily checks for engine, upperstructure, undercarriage, working device, and other components.
Before Starting Engine
Confirms pilot control shut-off lever, control levers, and key switch position before starting the engine.
Starting the Engine
Details the procedure for starting the engine at normal temperatures, including using the engine control dial and horn.
Starting in Cold Weather
Explains the preheating procedure for starting the engine in cold weather, including indicators and engine speed adjustments.
Check Instruments After Starting Engine
Checks monitor indicators, engine noise, and exhaust gas color after starting the engine for normal operation.
Using Booster Battery
Provides instructions for safely connecting and using a booster battery to start the engine.
Stopping the Engine
Details the engine stop procedure, including lowering attachments and cooling the engine.
Driving the Machine
Travel Levers and Pedals (Optional)
Explains the operation of travel levers/pedals for forward/reverse travel and ascending/descending slopes.
Travel Mode Switch
Describes how to select fast or slow travel modes and the associated warnings.
Traveling
Provides precautions for traveling, including using signal persons, confirming travel motor position, and crossing rivers.
Traveling on Soft Ground
Offers advice for operating on soft ground, including evacuation procedures and track cleaning.
Raise One Track by Using Boom and Arm
Details the procedure for carefully raising one track using the boom and arm, with safety warnings.
Towing Machine
Provides instructions and cautions for towing the machine using wire ropes and proper attachment points.
Operating in Water or Mud
Explains conditions for operating in water/mud and precautions for submerged bearings and gears.
Precautions for Traveling on Slopes
Warns about potential injury from traveling on slopes, emphasizing slow speed and careful operation.
Parking the Machine on Slopes
Warns against parking on slopes and provides procedures if unavoidable (thrusting bucket, locking levers).
Parking the Machine
Details the procedure for parking the machine on a level surface, including engine shutdown and securing the cab.
Operating the Machine
Control Lever (ISO Pattern)
Explains the function of each control lever in the ISO pattern for machine operation.
Boom-Swing Pedal
Describes the boom-swing pedal operation for efficient excavation along roadsides or near walls.
Blade Lever
Explains how to use the blade lever to raise and lower the blade.
Precautions for Blade Operation
Provides guidelines for blade operation, emphasizing it's for light service and avoiding deep digging or harsh impacts.
Pilot Control Shut-Off Lever
Explains the function of the pilot control shut-off lever to prevent misoperation and ensure safety.
Warming Up Operation
Details the procedure for warming up the machine in cold weather to reach optimal operating temperatures.
Engine Speed Control
Explains how to increase or decrease engine speed using the engine control dial.
Auto-Idle
Describes the auto-idle function, which reduces engine speed after a period of inactivity to save fuel.
Auto-Idle ON/OFF
Explains how to turn the auto-idle function ON or OFF using the auto-idle switch.
Power Mode
Explains the ECO and PWR modes for engine speed selection, optimizing fuel consumption or performance.
Overload Alarm Selector (Optional)
Details the overload alarm function, which activates a buzzer when a defined pressure is detected.
Operating Backhoe
Provides instructions for backhoe operation, including bucket selection and cylinder stroke precautions.
Grading Operation
Explains how to use the blade for soil refilling and general grading, and operation with boom, arm, and bucket.
Avoid Abusive Operation
Warns against abusive practices like thrusting bucket teeth into ground or using machine weight for digging.
Avoid Excavation Using Upperstructure and/or Boom Swing Power
Do not use upperstructure or boom swing power to move rocks or excavate cliff faces to prevent damage.
Avoid Driving Bucket Teeth into Ground
Avoid forcing bucket teeth into the ground to prevent spatter, injury, and shortened service life of parts.
Avoid Striking With Bucket
Do not perform hammering or piling work with the bucket, as it is hazardous and can cause damage.
Boom Cylinder may Hit Blade
Take care to prevent the boom cylinder or bucket from accidentally hitting the blade when digging deeply.
Avoid Hitting Blade With Bucket
Be careful not to hit the blade with the bucket when rolling in the arm during travel or transportation.
Avoid Colliding Blade Against Rocks
Do not let the blade collide with rocks to prevent premature damage to the blade and cylinders.
Avoid Colliding Boom Cylinder With Track
Take care to prevent the boom cylinder from accidentally colliding with the track when digging deeply.
Precautions for Installing Wide Bucket or Special Type Bucket
Consult dealer before installing wide buckets to prevent cab collision, especially on cab-equipped machines.
Use Correct Track Shoe
Use correct track shoes for terrain; avoid rubber crawlers on rough terrain to prevent breakage.
Using Rubber Crawler
Follow precautions to avoid damage to rubber crawlers, including forbidden operations and storage guidelines.
Avoid other than Specified Machine Operations
Operate the machine only for excavation and loading works as specified, avoiding beyond these conditions.
Precautions for Lifting Work
Operate on level ground, swing carefully to avoid contact with personnel, and reduce engine speed when traveling with loads.
Shackle Bracket Usage
Use shackle brackets on track frames for towing light objects, following restrictions and precautions.
Emergency Boom Lowering Procedure
Details the procedure for lowering the boom in case of engine stall, including releasing hydraulic pressure.
Releasing Hose Rupture Valve (Machine Equipped with Hose Rupture Valve) (Optional)
Explains how to operate the hose rupture valve in emergencies to prevent sudden front attachment falling.
Releasing Overload Relief Valve
Provides procedures for releasing the overload relief valve for boom raise circuit when front attachment is loaded or not.
Precautions for After Operations
After operation, park on firm level ground, refill fuel, and clean the machine.
Transporting
Transporting by Road
Understand and follow local regulations for width, height, length, weight, and route conditions.
Loading/Unloading on a Truck
Always load/unload on a firm, level surface using ramps or docks, and never use attachment functions on ramps.
Loading
Follow warnings for auto-idle and travel mode, never steer on ramps, and be careful of bumps and swinging.
Fastening Machine for Transporting
Securely fasten the machine to the flatbed with wire ropes, avoiding contact with track shoes.
Unloading
Turn auto-idle OFF, select slow speed, never steer on ramps, and ensure boom/arm angles for safe unloading.
Lifting Machine
Use lifting tools free from damage, consult dealer for procedures, lock pilot control, and ensure correct load balance.
Maintenance
Correct Maintenance and Inspection Procedures
Service the machine correctly by following procedures for daily inspection, controls, and fluid levels.
Check the Hour Meter Regularly
Refer to check and maintenance lists for lubricants and intervals; shorten intervals under severe conditions.
Layout
Illustrates and labels the various components of the machine for maintenance reference.
Maintenance Guide Table
Provides a guide table with symbol marks for regular lubrication and service intervals.
Maintenance Guide Table
Lists maintenance items, intervals in hours, and corresponding page numbers for ZX33U-5A/38U-5A.
Maintenance Guide Table
Lists maintenance items, intervals in hours, and corresponding page numbers for ZX48U-5A/55U-5A/65USB-5A.
Preparations for Inspection and Maintenance
Details pre-service procedures: parking, lowering attachments, engine shutdown, and applying 'Do Not Operate' tags.
Access Covers
Provides instructions and warnings for opening and closing engine and tank access covers safely.
Radiator front Cover
Explains how to open and close the radiator front cover safely, with warnings about moving parts.
A. Greasing
Details greasing points, quantities, and intervals for front joint pins, blade pins, swing bearing, and gear.
B. Engine
Covers engine oil level checks, oil changes, and engine oil filter replacement procedures.
C. Transmission
Details checks for travel reduction gear oil level and change procedures.
D. Hydraulic System
Covers inspection and maintenance of hydraulic components, including oil levels, filters, and hoses.
E. Fuel System
Details procedures for checking fuel level, water separator, fuel tank sump, and fuel filter replacement.
F. Air Cleaner
Explains cleaning and replacement procedures for the air cleaner outer and inner elements.
G. Cooling System
Covers coolant level checks, fan belt tension, coolant changes, and radiator/oil cooler cleaning.
H. Electrical System
Details battery checks, electrolyte levels, specific gravity, and fuse replacement procedures.
I. Miscellaneous
Covers checks and replacement for bucket teeth, bucket, track sag, seat belt, and air conditioning filters.
Periodic Replacement of Parts
Lists parts requiring periodic replacement due to deterioration or wear, with replacement intervals.
Kind of Oils
Provides brand names of recommended grease, engine oil, transmission oil, and hydraulic oil.
Recommended Oil Viscosity
Shows recommended oil viscosity based on application and air temperature.
A. Greasing
Details greasing intervals and points for bucket, swing post, blade pins, swing bearing, and control lever.
Swing Internal Gear
Provides lubrication intervals and procedures for the swing internal gear.
Control Lever Universal Joint
Describes greasing the universal joint by pulling rubber boots under control levers.
B. Engine
Covers engine oil level checks, oil changes, and engine oil filter replacement.
Change Engine Oil
Details the procedure for changing engine oil and replacing the engine oil filter.
C. Transmission
Covers checks and changes for travel reduction gear oil level and gear oil.
D. Hydraulic System
Provides instructions for inspection and maintenance of hydraulic equipment, emphasizing safety and component care.
Change Hydraulic Oil and Replace Full-Flow Filter Element
Explains how to change hydraulic oil and replace the full-flow filter element based on breaker operation availability.
Replace Full-Flow Filter
Details the procedure for replacing the full-flow filter element, including safety precautions and bleeding air.
Replace Pilot Oil Filter Element
Provides instructions for replacing the pilot oil filter element, including bleeding air and checking oil level.
Check Hoses and Lines
Details daily and 250-hour checks for hoses and lines for leaks, damage, and wear.
Service Recommendations for Hydraulic Fittings
Offers recommendations for hydraulic fittings, including O-ring replacement and tightening torques.
Quick Coupler
Explains the connection and disconnection procedures for quick couplers, with important precautions.
Using Screwdriver
Describes how to use a screwdriver for disconnecting couplers in narrow spaces.
E. Fuel System
Covers fuel system warnings, recommended fuel types, and procedures for checking fuel level and water separator.
Check Fuel Level
Details the procedure for checking fuel level, including safety precautions and tank capacity.
Check Water Separator
Explains how to drain water from the water separator and bleed air from the fuel system.
Drain Fuel Tank Sump
Provides instructions for draining water and sediment from the fuel tank sump.
Replace Fuel Main Filter Element
Details the procedure for replacing the fuel main filter element, including safety and bleeding air.
Replace Fuel Pre-Filter Element (Optional)
Explains the replacement procedure for the fuel pre-filter element and associated warnings.
F. Air Cleaner
Covers cleaning and replacing air cleaner outer and inner elements, including warnings for cleaning methods.
Clean Air Cleaner Outer Element
Details cleaning the outer air cleaner element using compressed air or vacuum.
Replace Air Cleaner Outer and Inner Elements
Explains when to replace outer and inner air cleaner elements.
Replace Air Cleaner Inner Element (Optional)
Describes replacing the inner air cleaner element when the outer element is replaced.
G. Cooling System
Covers coolant information, antifreeze mixing ratios, and precautions for handling antifreeze.
Coolant
Recommends using soft water and genuine Hitachi Long-Life Coolant (LLC) mixed at specific ratios.
Check Coolant Level
Details daily checks of the coolant level in the reservoir and radiator, with safety warnings for cap removal.
Check and Adjust Fan Belt Tension
Explains how to inspect and adjust fan belt tension for ZX33U-5A/38U-5A models.
Change Coolant
Provides procedures for changing coolant twice a year or as per the interval for genuine Hitachi LLC.
Clean Radiator/Oil Cooler Core
Instructs on cleaning radiator/oil cooler cores using compressed air or tap water, with safety warnings.
Clean Air Conditioner Condenser
Details daily cleaning of the air conditioner condenser and front screen in dusty environments.
H. Electrical System
Covers important notes on electrical equipment, radio installation, and battery maintenance.
Batteries
Provides warnings about battery gas explosion, electrolyte hazards, and proper handling.
Electrolyte Level Check
Explains how to check electrolyte levels monthly, with safety precautions and illustrations.
Check Electrolyte Specific Gravity
Details how to check electrolyte specific gravity and the recommended range based on temperature.
Replacing Fuses
Instructs on checking and replacing fuses with the correct amperage rating to prevent electrical damage.
I. Miscellaneous
Covers checks and replacement for bucket teeth, bucket change, track sag adjustment, and rubber crawler replacement.
Check and Replace Bucket Teeth
Details checking bucket teeth for wear and looseness, and replacing them when worn.
Change Bucket
Provides procedures for removing and installing buckets, including safety precautions for pin handling.
Adjust Track Sag (Rubber Crawler) and Check for Damage
Explains how to adjust track sag and check rubber tracks for damage, with safety warnings.
Loosen the Track (Rubber Crawler)
Details the procedure for loosening rubber tracks by turning the valve, with safety cautions.
Tighten the Track (Rubber Crawler)
Explains how to tighten rubber tracks by connecting a grease gun to the fitting.
Replace Rubber Crawler
Describes the procedure for removing and installing rubber crawlers, including safety warnings.
Installing Rubber Crawler
Details the procedure for installing rubber crawlers, including engaging the sprocket and adjusting track sag.
Check Track Sag (Steel Crawler) (Optional)
Explains how to measure and adjust track sag for steel crawlers and check for damage.
Loosen the Track (Steel Crawler)
Provides instructions for loosening steel tracks by turning the valve, with safety cautions.
Tighten the Track (Steel Crawler)
Explains how to tighten steel tracks by connecting a grease gun to the fitting.
Converting the Track
Consult dealer for track conversion procedures and safety measures.
Check and Replace Seat Belt
Instructs on daily checks and replacement of seat belts every three years for safety.
Check Air Conditioner (Cab equipped machine)
Details daily checks for air conditioner operation, pipe connections, refrigerant, and condenser cleaning.
Check mounting bolts for looseness
Confirm that compressor mounting bolts and other fastening bolts are securely tightened.
Check compressor and fan belt
Visually check compressor and fan belts for looseness and wear, and check belt tension.
Adjust Compressor Belt Tension
Provides steps for adjusting compressor belt tension by moving the tension pulley.
Clean and Replace Heater / Air Conditioner Filter
Details cleaning circulating air filter every 500 hours and replacing it after six cleanings or one year.
Cleaning
Instructs on cleaning the filter using a vacuum cleaner, avoiding compressed air or water.
Clean Fresh Air Filter
Explains cleaning the fresh air filter every 500 hours using a vacuum cleaner.
Clean Cab Floor
Provides instructions for cleaning the cab floor with water, emphasizing caution with water pressure and ducts.
Check, Clean and Function Check of Injection Nozzle
Consult dealer for inspection and repair of injection nozzle.
Inspect and Adjust Valve Clearance
Consult dealer for inspection and repair of valve clearance every 1000 hours.
Check and Adjust Injection Timing
Consult dealer for inspection and repair of injection timing every 1500 hours.
Measure Engine Compression Pressure
Consult dealer for inspection and repair of engine compression pressure as required.
Check Starter and Alternator
Consult dealer for inspection and repair of starter and alternator every 1000 hours.
Check Crankcase Breather
Consult dealer for inspection and repair of crankcase breather every 1500 hours.
Check Radiator Cap
Consult dealer for inspection and repair of radiator cap every 2000 hours.
Tightening and Retightening Torque of Bolts and Nuts
Check and tighten bolts/nuts every 250 hours (50 hours first time) using a torque wrench.
Specifications
Std. Specification
Provides standard specifications for ZX33U-5A including dimensions, engine, ground pressure, and speeds.
Working Ranges
Details working range dimensions for ZX33U-5A with different arm lengths and attachments.
Shoe Types and Applications
Lists shoe types (rubber, grouser, pad) and their applications for ZX33U-5A (Canopy/Cab).
Bucket Types and Applications ZX33U-5A
Specifies bucket types and applications for ZX33U-5A based on capacity and width.
Std. Specification
Provides standard specifications for ZX38U-5A including dimensions, engine, ground pressure, and speeds.
Working Ranges
Details working range dimensions for ZX38U-5A with different arm lengths.
Shoe Types and Applications
Lists shoe types and their applications for ZX38U-5A (Canopy/Cab).
Std. Specification
Provides standard specifications for ZX48U-5A including dimensions, engine, ground pressure, and speeds.
Working Ranges
Details working range dimensions for ZX48U-5A with different arm lengths.
Shoe Types and Applications
Lists shoe types and their applications for ZX48U-5A (Canopy/Cab).
Bucket Types and Applications ZX48U-5A
Specifies bucket types and applications for ZX48U-5A based on capacity and width.
Std. Specification
Provides standard specifications for ZX55U-5A including dimensions, engine, ground pressure, and speeds.
Working Ranges
Details working range dimensions for ZX55U-5A with different arm lengths.
Shoe Types and Applications
Lists shoe types and their applications for ZX55U-5A (Cab).
Bucket Types and Applications ZX55U-5A
Specifies bucket types and applications for ZX55U-5A based on capacity and width.
Std. Specification
Provides standard specifications for ZX65USB-5A including dimensions, engine, ground pressure, and speeds.
Working Ranges
Details working range dimensions for ZX65USB-5A with different arm lengths.
Shoe Types and Applications
Lists shoe types and their applications for ZX65USB-5A (Cab).
Bucket Types and Applications ZX65USB-5A
Specifies bucket types and applications for ZX65USB-5A based on capacity and width.
Optional Attachment
Hydraulic Breaker, Hydraulic Crusher and Quick Coupler
Covers selection, operation precautions, and piping for attachments like breakers and crushers.
Attachment
Details allowable weight limits for installed attachments to ensure machine stability and safety.
Piping for Breaker and Crusher (Optional)
Explains operational procedures for stop valves, selection valves, and pedal operation for attachments.
Attachment Pedal (Hydraulic Breaker) (Optional)
Describes how to operate the hydraulic breaker using the attachment pedal and its safety precautions.
Precautions for Breaker Operation
Warns about reduced machine stability with breakers, avoiding hitting objects, and operating at cylinder stroke ends.
Stop operation if breaker hydraulic hoses jump abnormally
Instructs to stop operation if hoses jump abnormally, preventing breaker/machine damage.
Do not operate the breaker in water
Avoid operating the breaker in water to prevent rust, seal damage, and hydraulic system contamination.
Do not use breaker for lifting operation
Do not use the breaker for lifting to prevent machine tipping or breaker damage.
Do not operate the breaker to the side of the machine
Avoid operating the breaker to the machine's side to prevent instability and undercarriage damage.
Operate the chisel carefully to avoid hitting the machine
Operate the chisel carefully to prevent contact with the boom or other machine parts.
Do not operate breaker with the arm positioned vertically
Avoid operating the breaker with the arm vertically to prevent excessive vibration and oil leakage.
Press the breaker so that the chisel (the axis) is positioned and thrust perpendicular to the object
Position and thrust the chisel perpendicularly to the object to prevent chisel or piston damage.
Do not operate the breaker continuously longer than one minute
Avoid continuous breaker operation longer than one minute to prevent premature chisel wear.
Raising the front part of the undercarriage by pressing down the breaker may cause damage to the front attachment
Do not raise the undercarriage front part more than 150 mm by pressing the breaker down.
Do not operate breaker with the boom swing operation
Avoid operating the breaker with boom swing for extended periods to prevent shortening main frame service life.
Attachment Pedal (Hydraulic Crusher) (Optional)
Describes how to operate the hydraulic crusher using the attachment pedal and its safety precautions.
Precautions for Crusher Operation
Warns about reduced stability with crushers, avoiding supporting machine weight with cylinders, and operating parallel to tracks.
When the arm rolled in with the crusher equipped, the crusher may come in contact with the boom
Take care to prevent the crusher from contacting the boom when the arm is rolled in.
When operating the crusher up high with the boom fully raised, be careful of falling objects
Be careful of falling objects when operating the crusher at high elevations with the boom raised.
When operating the crusher on a floor in a building, first confirm that the floor has sufficient strength
Ensure floor strength supports crushing load and machine weight before operating crusher indoors.
Always operate the crusher on a stable, level surface
Operate the crusher on stable, level surfaces, not slopes or crushed scraps, and avoid using it for hauling.
To prevent the attachment from falling accident, use a platform when replacing or detaching the attachment
Use a platform when replacing or detaching attachments to prevent falling accidents.
If a multiple number of attachments such as crusher and bucket, or crusher and breaker are used and replaced
Replace hydraulic oil tank filter and change oil regularly if multiple attachments are used to prevent contamination.
Always remove the crusher from the excavator before transporting the machine
Remove the crusher before transport and do not extend bucket cylinder to prevent damage from vibrations.
AUX Function Lever for Extra Piping (Optional)
Explains the function of switches on the AUX lever for operating attachments and safety precautions.
AUX Function Lever (Right) --- for Extra Piping
Details how to operate attachments like breakers using slide switch or push switch on the right control lever.
Auxiliary Flow Rate Control (Optional)
Describes how to control maximum and minimum hydraulic flow rate in the auxiliary pipe line.
Control Lever (H-pattern: HITACHI Excavator Pattern)
Explains the function of each control lever in the H-pattern and warns about unexpected movements.
Control Lever (SAE-backhoe Pattern)
Explains the function of each control lever in the SAE-backhoe pattern and warnings about pattern changing.
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