The Komatsu WA50-8 Wheel Loader Shop Manual (SEN07007-01) is the workshop book you use when the machine is down and you’ve already checked the obvious stuff in the yard. It’s aimed at people who actually turn wrenches on a WA50-8, not just run it. Most folks reach for this when they need guided diagnostics, teardown order, or correct reassembly after a failure, so they don’t waste half a day guessing.
What this manual helps you do
- Trace hydraulic issues on the Komatsu WA50-8 wheel loader using factory-style troubleshooting trees and circuit layouts.
- Diagnose engine, electrical, and hydraulic faults with step-by-step test sequences that match what most shops have on the truck or in the bay.
- Follow correct disassembly and reassembly sequences for major components so you don’t break castings, pinch seals, or miss hidden fasteners.
- Check adjustment procedures for linkages, brakes, steering, and loader functions after repairs so the machine goes back to work safely.
- Handle scheduled workshop-level service tasks on the WA50-8 with the kind of guidance you’d expect in a dealer shop environment.
Who this is for
This is for field techs, shop mechanics, and fleet managers who are responsible for actual repairs on a Komatsu WA50-8, not just daily checks. Operators looking for basic controls and routine maintenance would be better off with the Operation & Maintenance manual, not this shop manual.
FAQ
Q: Is this a PDF I can search and print?
A: Yes, it’s a digital PDF you can search by keyword and print the pages you need for the jobsite.
Q: Does this go deep enough for full component rebuilds?
A: These shop manuals usually cover diagnostics, removal, disassembly, inspection points, reassembly, and testing for major systems.
Q: How do I know it matches my specific WA50-8?
A: Check your machine tag and confirm it’s a WA50-8; if you’re near a serial break, you may want to confirm with your Komatsu dealer that SEN07007-01 is the correct book for your unit.
Bottom line: if you’re repairing or diagnosing a Komatsu WA50-8 in the field or shop, this is the right manual; if you just need operating instructions and basic servicing, keep looking for the O&M book instead.
📘 Show Index
Table of Contents:
- 00 Index and Foreword
- Index
- Abbreviation List
- Foreword, Safety, Basic Information
- How to Read the Shop Manual
- Safety Notice for Operation
- Precautions to Prevent Fire
- Procedures If Fire Occurs
- Precautions When You Dispose of Waste Materials
- Precautions When You Handle Hydraulic Equipment
- Precautions When You Disconnect and Connect Pipings
- Precautions When You Handle Electrical Equipment
- Precautions When You Handle Fuel System Equipment
- Precautions When You Handle Intake System Equipment
- Practical Use of KOMTRAX
- Disconnect and Connect Push-Pull Type Coupler
- How to Disconnect and Connect Type 1 Push-Pull Type Coupler
- How to Disconnect and Connect Type 2 Push-Pull Type Coupler
- How to Disconnect and Connect Type 3 Push-Pull Type Coupler
- Precautions for Disconnection and Connection of Connectors
- How to Disconnect and Connect Deutsch Connector
- How to Disconnect and Connect Slide Lock Type Connector
- How to Disconnect and Connect Connector with Lock to Pull
- How to Disconnect and Connect Connector with Lock to Push
- How to Disconnect and Connect Connector with Housing to Rotate
- How to Read the Codes for Electric Cable
- Explanation of Terms for Maintenance Standard
- Standard Tightening Torque Table
- Conversion Table
- 01 Specifications
- Table of Contents
- Abbreviation List
- Specifications
- Specification Drawing
- Specification Drawing: WA50-8
- Specifications
- Weight Table
- How to Use Fuel, Coolant and Lubricants by Ambient Temperature
- 10 Structure and Function
- Table of Contents
- Abbreviation List
- Boot-up System
- Layout Drawing of Boot-up System
- System Operating Lamp System
- System Diagram of System Operating Lamp System
- Function of Operation Lamp System
- Battery Disconnect Switch
- Function of Battery Disconnect Switch
- Engine System
- Layout Drawing of Engine System
- Engine Control System
- System Diagram of Engine Control
- Function of Engine Control System
- Component Parts of Engine System
- Cooling System
- Layout Drawing of Cooling System
- Specifications of Cooling System
- Control System
- Layout Drawing of Control System
- Machine Monitor System
- System Diagram of Machine Monitor System
- KOMTRAX System
- System Diagram of KOMTRAX System
- Function of KOMTRAX System
- Component Parts of Control System
- Machine Monitor
- KOMTRAX Terminal
- HST Controller
- Hydraulic System
- Layout Drawing of Hydraulic System
- Component Parts of Hydraulic System
- Hydraulic Tank
- Steering and Work Equipment Pump
- Control Valve
- Power Train System
- Layout Drawing of HST System
- HST Control System
- System Diagram of HST Control System
- Travel Speed Adjustment Function
- Traction Control Function
- Machine Protection Function by HST Controller
- Component Parts of Power Train System
- Drive Shaft
- HST Pump
- HST Motor
- Transfer
- Axle
- Differential
- Final Drive
- Work Equipment System
- Layout Drawing of Work Equipment System
- Steering System
- Layout Drawing of Steering System
- Steering Column
- Structure of Steering Column
- Component Parts of Steering System
- Priority Valve
- Orbitrol Valve
- Brake System
- Layout Drawing of Brake System
- Component Parts of Brake System
- Undercarriage and Frame
- Frame, Axle Mount and Center Hinge Pin
- Structure of Frame, Axle Mount and Center Hinge Pin
- Function of Frame, Axle Mount and Center Hinge Pin
- Work Equipment
- Structure of Work Equipment
- Structure of Bucket
- Bucket Positioner
- Structure of Bucket Positioner
- Function of Bucket Positioner
- Operation of Bucket Positioner
- CAB Related Parts
- ROPS CAB
- Structure of ROPS CAB
- Function of ROPS CAB
- ROPS Canopy
- Structure of ROPS Canopy
- Function of ROPS Canopy
- 20 Standard Value Table
- Table of Contents
- Abbreviation List
- Standard Value Table for Engine
- Standard Value Table for Engine: WA50-8
- Standard Value Table for Machine
- Standard Value Table for Machine: WA50-8
- Machine Posture and Procedures to Measure Performance
- 30 Testing and Adjusting
- Table of Contents
- Precautions Before Work
- Abbreviation List
- Related Information on Testing and Adjusting
- Tools for Testing and Adjusting
- Sketch of Tools for Testing and Adjusting
- Engine and Cooling System
- Examine Engine Speed
- How to Examine Engine Speed
- Examine Exhaust Gas Color
- How to Examine Exhaust Gas Color with Handy Smoke Checker
- How to Examine Exhaust Gas Color with Smoke Meter
- Examine and Adjust Valve Clearance
- How to Examine Valve Clearance
- How to Adjust Valve Clearance
- Examine Compression Pressure
- How to Examine Compression Pressure
- Examine Engine Oil Pressure
- How to Examine Engine Oil Pressure
- Bleed Air from Fuel System
- How to Bleed Air from Fuel System
- Examine Fuel System for Leakage
- How to Examine Fuel System for Leakage
- Handle Cylinder Cut-out Mode Operation
- Examine and Adjust Alternator Belt Tension
- How to Examine Alternator Belt Tension
- Adjust Alternator Belt Tension
- Examine Installed Condition of Cylinder Heads and Manifolds
- How to Examine Installed Condition of Cylinder Heads and Manifolds
- Examine Engine Piping for Damage and Looseness
- How to Examine Engine Piping for Damage and Looseness
- Examine and Adjust Air Conditioner Compressor Belt Tension
- How to Examine Air Conditioner Compressor Belt Tension
- How to Adjust Air Conditioner Compressor Belt Tension
- Power Train
- Examine and Adjust HST Oil Pressure
- How to Examine HST Oil Pressure
- How to Adjust HST Oil Pressure
- Adjust Travel Speed Sensor
- How to Adjust Travel Speed Sensor
- Examine Drive Shaft for Looseness, Backlash, and Damage
- How to Examine Drive Shaft for Looseness, Backlash, and Damage
- Steering System
- Examine Steering Wheel
- How to Examine Steering Wheel
- Examine and Adjust Steering Circuit Oil Pressure
- How to Examine Steering Circuit Oil Pressure
- How to Adjust Steering Circuit Oil Pressure
- Bleed Air from Steering Cylinder Circuit
- How to Bleed Air from Steering Cylinder Circuit
- Brake System
- Examine Brake Performance
- How to Examine Brake Performance
- Examine Brake Pedal
- How to Examine Brake Pedal
- Examine and Adjust Brake Pedal Linkage
- How to Examine Brake Pedal Linkage
- How to Adjust Brake Pedal Linkage
- Examine and Adjust Brake Lamp Switch
- How to Examine Brake Lamp Switch
- How to Adjust Brake Lamp Switch
- Examine and Adjust Inching Potentiometer Linkage
- How to Examine Inching Potentiometer Linkage
- How to Adjust Inching Potentiometer Linkage
- Examine and Adjust Parking Brake Control Linkage
- How to Examine Parking Brake Control Linkage
- How to Adjust Brake Parking Brake Control Linkage
- Examine Brake Disc Wear Volume
- How to Examine Brake Disc Wear Volume
- Examine Parking Brake Performance
- How to Examine Parking Brake Performance
- Hydraulic System
- Release Remained Pressure from Work Equipment Circuit
- How to Release Remained Pressure from Work Equipment Circuit
- Examine and Adjust Work Equipment Oil Pressure
- How to Examine Work Equipment Oil Pressure
- How to Adjust Work Equipment Oil Pressure
- Bleed Air from Work Equipment Circuit
- How to Bleed Air from Work Equipment Circuit
- Work Equipment
- Examine Proximity Switch Operation Pilot Lamp
- How to Examine Proximity Switch Operation Pilot Lamp
- Examine and Adjust Bucket Positioner
- How to Examine Bucket Positioner
- How to Adjust Bucket Positioner
- Examine Stroke of Work Equipment Valve Spool
- How to Examine Stroke of Work Equipment Valve Spool
- CAB Related Parts
- Examine Directional Lever
- How to Examine Directional Lever
- Examine and Adjust Work Equipment Lever
- How to Examine Work Equipment Control Lever
- How to Adjust Work Equipment Control Lever
- Examine Accelerator Pedal
- How to Examine Accelerator Pedal
- Electrical System
- Set and Operate Machine Monitor
- Operator Mode
- Examine Function by LCD (Liquid Crystal Display)
- Examine Function of Service Meter
- Usage Limitation and Maintenance Password Change Function(When Password Length is 10)
- Usage Limitation and Maintenance Password Change Function(When Password Length is 6)
- Service Mode
- How to Operate Service Mode
- How to See Pre-defined Monitoring Information
- How to Examine Self-Define Monitor Information
- Abnormality Record Menu
- How to Reset Maintenance Time
- How to See Maintenance Record
- How to Operate Maintenance Mode Setting
- How to Set Phone Number Entry
- Default Menu
- Diagnostic Tests Menu
- Adjustment Menu
- KOMTRAX Settings Menu
- How to Show Service Message
- How to Start Up KOMTRAX Terminal
- Handle Voltage Circuit of Engine Controller
- Handle Battery Disconnect Switch
- Examine Diodes
- How to Examine Diodes by Digital Tester
- How to Examine Diodes by Analog Tester
- Pm Clinic
- Pm Clinic Service
- Pm Clinic Check Sheet: WA50-8
- 40 Troubleshooting
- Table of Contents
- Precautions Before Work
- Abbreviation List
- Related Information to Troubleshooting
- General Troubleshooting Points
- Sequence of Events in Troubleshooting
- Inspection Before Troubleshooting
- Inspection Procedure Before Troubleshooting
- Test in Accordance with Testing Procedure
- Examine Fuel Level and Type
- Examine for Impure Ingredient in Fuel
- Examine Feed Pump Prefilter
- Examine Fuel Prefilter
- Examine Water Separator, Drain Water and Sediment
- Examine Fuel Main Filter
- Examine Engine Oil Level (Oil Quantity in Oil Pan) and Type
- Examine Coolant Level (Reservoir Tank)
- Examine Air Cleaner Clogging
- Clean Outer Element
- Replace Element
- Examine Hydraulic Oil Level
- Examine Hydraulic Oil Filter
- Examine the Oil Level in the Transfer Case
- Examine Oil Level in Front Axle Case
- Examine Oil Level in Rear Axle Case
- Bleed Air from Fuel System
- Bleed Air from Hydraulic System
- How to Examine Electrical Components
- Preparation for Troubleshooting of Electrical System
- Preparation for Troubleshooting of Machine Monitor
- Preparation for Troubleshooting of Engine Controller
- Preparation for Troubleshooting of HST Controller
- Preparation for Troubleshooting of KOMTRAX Terminal
- How to Disconnect and Connect Connector with a Special Lock
- Procedure for Troubleshooting
- Symptom and Troubleshooting Numbers
- Information Shown in Troubleshooting Table
- Connector List and Layout
- Connector Contact Connection Table
- Connector Contact Identification (For 4D88E-7 Engine)
- T-Branch Box and T-Branch Adapter Table
- Fuse Location Table
- Precautions When You Clean and Replace KDPF (KCSF and KDOC)
- Failure Code Table
- Troubleshooting by Failure Code (Display of Code)
- Failure Code [6091NX]
- Failure Code [989FN1]
- Failure Code [989L00]
- Failure Code [989M00]
- Failure Code [989N00]
- Failure Code [AQ20R1]
- Failure Code [B@CRNS]
- Failure Code [D160KA]
- Failure Code [D160KB]
- Failure Code [D160KY]
- Failure Code [D192KA]
- Failure Code [D192KB]
- Failure Code [D192KY]
- Failure Code [D19JKZ]
- Failure Code [D19UKB]
- Failure Code [D19UKZ]
- Failure Code [D19UMC]
- Failure Code [D5ZHKA]
- Failure Code [D5ZHKB]
- Failure Code [D811MC]
- Failure Code [D862KA]
- Failure Code [D8ALKA]
- Failure Code [D8ALKB]
- Failure Code [D8AQK4]
- Failure Code [D8AQKR]
- Failure Code [DAF0KT]
- Failure Code [DAF0MB]
- Failure Code [DAF0MC]
- Failure Code [DAF3KK]
- Failure Code [DAFGMC]
- Failure Code [DAFLKA]
- Failure Code [DAFLKB]
- Failure Code [DAFQKR]
- Failure Code [DAJ0KK]
- Failure Code [DAJ0KT]
- Failure Code [DAJ0MC]
- Failure Code [DAJ1KA]
- Failure Code [DAJ2KK]
- Failure Code [DAJ5KX]
- Failure Code [DAJ6KX]
- Failure Code [DAJ9KQ]
- Failure Code [DAJLKA]
- Failure Code [DAJLKB]
- Failure Code [DAJQKR]
- Failure Code [DAJRMA]
- Failure Code [DB2QKR]
- Failure Code [DDAAL6]
- Failure Code [DDD7KA]
- Failure Code [DDD7KY]
- Failure Code [DDK6KA]
- Failure Code [DDK6KY]
- Failure Code [DGH1KX]
- Failure Code [DHHBKX]
- Failure Code [DHHBKY]
- Failure Code [DHHCKX]
- Failure Code [DHHCKY]
- Failure Code [DHTCL6]
- Failure Code [DJF1KA]
- Failure Code [DK70KA]
- Failure Code [DK70KY]
- Failure Code [DLT4KB]
- Failure Code [DLT4KX]
- Failure Code [DV00KB]
- Failure Code [DX19KA]
- Failure Code [DX19KB]
- Failure Code [DX19KY]
- Failure Code [DXATKA]
- Failure Code [DXATKB]
- Failure Code [DXATKY]
- Failure Code [DXAUKA]
- Failure Code [DXAUKB]
- Failure Code [DXAUKY]
- Troubleshooting of Electrical System (E-Mode)
- E-1 Engine Does Not Start (Engine Does Not Crank)
- E-2 Engine Does Not Start (Fuel Feed Pump System)
- E-3 Automatic Preheating System Does Not Operate
- E-4 When Starting Switch is Turned to ON Position, Machine Monitor Displays Nothing
- E-5 Engine Coolant Temperature Monitor Comes On in White While Engine Runs
- E-6 Charge Level Monitor Comes On in Red While Engine is in Operation
- E-7 Fuel Level Monitor Comes On in Red While Engine Runs
- E-8 Engine Coolant Temperature Monitor Comes On in Red While Engine is in Operation
- E-9 Engine Oil Pressure Monitor Comes on in Red While Engine is in Operation
- E-10 Fuel Gauge Display Does Not Move from Minimum or Maximum
- E-11 Display of Fuel Gauge is Different from Actual Fuel Level
- E-12 Coolant Temperature Gauge Display Does Not Move from Minimum or Maximum
- E-13 Display of Coolant Temperature Gauge is Different from Actual Coolant Temperature
- E-14 HST Oil Temperature Gauge Does Not Move from Minimum or Maximum
- E-15 HST Oil Temperature Gauge Reading is Different from Actual Oil Temperature
- E-16 Seat Belt Caution Lamp Indication is Abnormal
- E-17 Some Areas of Machine Monitor Screen are Not Shown
- E-18 Function Switch Does Not Operate
- E-19 Alarm Buzzer Does Not Sound
- E-20 Alarm Buzzer Cannot be Canceled
- E-21 Service Meter is Not Shown While Starting Switch is in OFF Position
- E-22 Machine Does Not Change to Service Mode
- E-23 Travel Speed is Too Slow or Fast
- E-24 Malfunction of Parking Brake Reminder Alarm
- E-25 The Bucket Positioner Does Not Work or Cannot be Released
- E-26 Cannot Switch Forward and Reverse Properly
- E-27 Horn Does Not Sound
- E-28 Horn Does Not Stop
- E-29 Headlamp, Clearance Lamp, and Tail Lamp Do Not Light
- E-30 Headlamp Does Not Come On or Go Off
- E-31 Clearance Lamp and Tail Lamp Do Not Come On or Go Off
- E-32 Front Working Lamp Does Not Come On or Go Off
- E-33 Rear Working Lamp Does Not Come On or Go Off
- E-34 All of Turn Signal Lamps and Hazard Lamps Do Not Come On or Go Off
- E-35 Turn Signal Lamps Do Not Come On or Go Off
- E-36 Hazard Lamp Does Not Come On or Go Off
- E-37 Brake Lamp Does Not Light or Stays Lighted
- E-38 Backup Lamp Does Not Come on or Does Not Go off
- E-39 Backup Buzzer Does Not Sound or Continues to Sound
- E-40 Front Wiper Does Not Operate
- E-41 Rear Wiper Does Not Operate
- E-42 Window Washer Does Not Operate
- E-43 KOMTRAX System Does Not Operate Correctly
- Troubleshooting for Hydraulic and Mechanical Systems (H Mode)
- Information Shown in Troubleshooting Table (H-Mode)
- H-1 Machine Can Not Move Forward or Reverse
- H-2 Machine Can Not Travel FORWARD (Machine Travels Reverse Normally)
- H-3 Machine Can Not Travel REVERSE (Machine Travels Forward Normally)
- H-4 Travel Speed of FORWARD Travel and REVERSE Travel is Slow, or Power is Low
- H-5 Forward Travel Speed is Slow or Power is Low (Machine Travels Reverse Normally)
- H-6 REVERSE Travel Speed is Slow or Power is Low (Machine Travels FORWARD Normally)
- H-7 Engine Speed Drops Largely or Engine Stops
- H-8 Travel Speed Control Dial Does Not Operate
- H-9 Machine Does Not Turn
- H-10 Steering Wheel is Heavy to Operate
- H-11 Machine Sways or Large Shocks are Made While Machine Turns
- H-12 Machine Unintentionally Turns to One Side When Machine Travels
- H-13 Brakes Do Not Work or Have Poor Performance
- H-14 Brakes Do Not Release or Drag
- H-15 Parking Brake Does Not Work or It is Weak
- H-16 Parking Brake is Not Released or Drags
- H-17 Boom Does Not Rise
- H-18 Boom Moves Slow or Boom Lacks Lifting Force
- H-19 Rising Boom Slows Down at Some Height
- H-20 Lift Cylinders Can Not Hold Bucket on Ground
- H-21 Hydraulic Drift of Boom is Large
- H-22 Boom Moves Up and Down During Operation
- H-23 When You Switch Control Lever From "Hold" to "Raise", Boom Temporarily Lowers
- H-24 Bucket Does Not Tilt Back
- H-25 Bucket Moves Slow or Lacks Tilt-Back Force
- H-26 Bucket Decreases Speed During Tilt-Back Operation
- H-27 Bucket Cylinder Does Not Hold Bucket on Ground
- H-28 Hydraulic Drift of Bucket is Large
- H-29 Bucket Tilts Back and Forth While You Carry Load (Work Equipment Valve in Hold)
- H-30 When You Switch Control Lever From "Hold" to "Tilt", Bucket Temporarily Dumps
- H-31 Boom and Bucket Control Levers Do Not Move Smoothly and are Heavy to Move
- Troubleshooting of Engine (S-Mode)
- Information Shown in Troubleshooting Table (S-Mode)
- S-1 Engine Does Not Crank When Starting Switch is Turned to START Position
- S-2 Engine Cranks but No Exhaust Smoke Comes Out
- S-3 Fuel is Sprayed but Engine Does Not Start (Misfiring: Engine Cranks but Does Not Start)
- S-4 Engine Startability is Unsatisfactory
- S-5 Engine Does Not Pick Up Smoothly
- S-6 Engine Stops During Operation
- S-7 Engine Runs Rough or is Not Stable
- S-8 Engine Lacks Power
- S-9 KDPF Becomes Clogged in a Short Time
- S-10 Engine Oil Consumption is Excessive
- S-11 Engine Oil Becomes Dirty Quickly
- S-12 Fuel Consumption is Excessive
- S-13 Oil is in Coolant (or Coolant Spurts Back or Coolant Level Goes Down)
- S-14 Engine Oil Pressure Drops
- S-15 Fuel Mixes into Engine Oil
- S-16 Water Mixes into Engine Oil (Milky)
- S-17 Coolant Temperature Increases Too High (Overheating)
- S-18 Unusual Noise is Heard
- S-19 Vibration is Excessive
- S-20 Air Cannot be Bled from Fuel Circuit
- 50 Disassembly and Assembly
- Table of Contents
- Precautions Before Work
- Abbreviation List
- Related Information on Disassembly and Assembly
- How to Read This Manual
- Coating Materials List
- Special Tool List
- Engine and Cooling System
- Remove and Install Cooling Assembly
- How to Remove Cooling Assembly
- How to Install Cooling Assembly
- Remove and Install Radiator Assembly
- How to Remove Radiator Assembly
- How to Install Radiator Assembly
- Remove and Install Hydraulic Oil Cooler Assembly
- How to Remove Hydraulic Oil Cooler Assembly
- How to Install Hydraulic Oil Cooler Assembly
- Remove and Install Engine and HST Pump Assembly
- Remove Engine and HST Pump Assembly
- Install Engine and HST Pump Assembly
- Remove and Install Engine Hood Assembly
- How to Remove Engine Hood Assembly
- How to Install Engine Hood Assembly
- Remove and Install Fuel Tank Assembly
- How to Remove Fuel Tank Assembly
- How to Install Fuel Tank Assembly
- Remove and Install KDPF Assembly
- How to Remove KDPF Assembly
- How to Install KDPF Assembly
- Disassemble and Assemble KDPF Assembly
- Remove and Install Air Cleaner Assembly
- How to Remove Air Cleaner Assembly
- How to Install Air Cleaner Assembly
- Remove and Install Air Conditioner Compressor Assembly
- How to Remove Air Conditioner Compressor Assembly
- How to Install Air Conditioner Compressor Assembly
- Remove and Install Air Conditioner Condenser Assembly
- How to Remove Air Conditioner Condenser Assembly
- How to Install Air Conditioner Condenser Assembly
- Power Train
- Remove and Install HST Pump Assembly
- Remove HST Pump Assembly
- Install HST Pump Assembly
- Remove and Install HST Motor Assembly
- How to Remove HST Motor Assembly
- How to Install HST Motor Assembly
- Remove and Install Transfer Assembly
- Remove Transfer Assembly
- Install Transfer Assembly
- Disassemble and Assemble Transfer Assembly
- Disassemble Transfer Assembly
- Assemble Transfer Assembly
- Remove and Install Parking Brake Assembly
- How to Remove Parking Brake Assembly
- Install Parking Brake Assembly
- Disassemble and Assemble Parking Brake Assembly
- Disassemble Parking Brake Assembly
- Assemble Parking Brake Assembly
- Remove and Install Front Axle Assembly
- How to Remove Front Axle Assembly
- How to Install Front Axle Assembly
- Remove and Install Rear Axle Assembly
- How to Remove Rear Axle Assembly
- How to Install Rear Axle Assembly
- Disassemble and Assemble Axle Housing Assembly
- How to Disassemble Axle Housing Assembly
- How to Assemble Axle Housing Assembly
- Disassemble and Assemble Differential Assembly
- How to Disassemble Differential Assembly
- How to Assemble Differential Assembly
- Undercarriage and Frame
- Remove and Install Center Hinge Pin
- How to Remove Center Hinge Pin
- How to Install Center Hinge Pin
- Remove and Install Counterweight Assembly
- How to Remove Counterweight Assembly
- How to Install Counterweight Assembly
- Remove and Install Undercover
- How to Remove Undercover
- How to Install Undercover
- Hydraulic System
- Remove and Install Hydraulic Tank Assembly
- How to Remove Hydraulic Tank Assembly
- How to Install Hydraulic Tank Assembly
- Remove and Install Control Valve
- How to Remove Control Valve
- How to Install Control Valve
- Work Equipment
- Remove and Install Work Equipment Assembly
- How to Remove Work Equipment Assembly
- How to Install Work Equipment Assembly
- Disassemble and Assemble Hydraulic Cylinder Assembly
- How to Disassemble Hydraulic Cylinder Assembly
- How to Assemble Hydraulic Cylinder Assembly
- CAB Related Parts
- Remove and Install Operator Cab Assembly
- How to Remove Operator Cab Assembly
- How to Install Operator Cab Assembly
- Remove and Install Canopy Assembly
- How to Remove Canopy Assembly
- How to Install Canopy Assembly
- Remove and Install Floor Frame Assembly (Canopy Specification)
- Remove Floor Frame Assembly (Canopy Specification)
- Install Floor Frame Assembly (Canopy Specification)
- Remove and Install Operator Cab Glass (Adhered Glass)
- How to Remove Operator Cab Glass (Adhered Glass)
- How to Install Operator Cab Glass (Adhered Glass)
- Remove and Install Heater Unit Assembly
- How to Remove Heater Unit Assembly
- How to Install Heater Unit Assembly
- Remove and Install Air Conditioner Unit Assembly
- How to Remove Air Conditioner Unit Assembly
- How to Install Air Conditioner Unit Assembly
- Remove and Install Operator Seat Assembly
- How to Remove Operator Seat Assembly
- How to Install Operator Seat Assembly
- Electrical System
- Remove and Install Engine Controller Assembly
- How to Remove Engine Controller Assembly
- How to Install Engine Controller Assembly
- Remove and Install HST Controller Assembly
- How to Remove HST Controller Assembly
- How to Install HST Controller Assembly
- Remove and Install Machine Monitor Assembly
- How to Remove Machine Monitor Assembly
- How to Install Machine Monitor Assembly
- Remove and Install KOMTRAX Terminal Assembly
- How to Remove KOMTRAX Terminal Assembly
- How to Install KOMTRAX Terminal Assembly
- 60 Maintenance Standard
- Table of Contents
- Abbreviation List
- Engine and Cooling System
- Maintenance Standard for Engine Mount
- Maintenance Standard for Coupling
- Power Train
- Maintenance Standard for Transfer Mount
- Maintenance Standard for HST Pump
- Maintenance Standard for HST Motor
- Maintenance Standard for Relief Valve of HST Motor
- Maintenance Standard for Transfer
- Maintenance Standard for Front Axle
- Maintenance Standard for Rear Axle
- Maintenance Standard for Front Differential
- Maintenance Standard for Rear Differential
- Maintenance Standard for Front Final Drive
- Maintenance Standard for Rear Final Drive
- Steering System
- Maintenance Standard for Steering Column
- Maintenance Standard for Steering Cylinder
- Brake System
- Maintenance Standard for Brake
- Undercarriage and Frame
- Maintenance Standard for Frame, Axle Mount and Center Hinge Pin
- Work Equipment
- Maintenance Standard for Work Equipment Linkage
- Maintenance Standard for Bucket
- Maintenance Standard for Bucket Positioner
- Maintenance Standard for Lift Cylinder
- Maintenance Standard for Bucket Cylinder
- CAB Related Parts
- Maintenance Standard for ROPS Cab
- Maintenance Standard for ROPS Canopy
- 80 Appendix
- Table of Contents
- Precautions Before Work
- Abbreviation List
- Air Conditioner System
- Precautions for Refrigerant
- Air Conditioner Component
- Specifications of Air Conditioner
- Structure and Function of Refrigeration Cycle
- Outline of Refrigeration Cycle
- Component Parts of Air Conditioner System
- Air Conditioner Unit
- Configuration Diagram of Air Conditioner Unit
- Compressor
- Structure of Compressor
- Specifications of Compressor
- Function of Compressor
- Condenser
- Structure of Condenser
- Specifications of Condenser
- Function of Condenser
- Receiver Drier
- Structure of Receiver Dryer
- Specifications of Receiver Dryer
- Function of Receiver Dryer
- Air Conditioner Control Panel
- Structure of Air Conditioner Control Panel
- Function of Air Conditioner Control Panel
- Information Shown in Troubleshooting Table
- A-1 Troubleshooting for Power Supply System (Air Conditioner Does Not Operate)
- A-2 Troubleshooting for Blower Motor System (No Air Comes Out or Air Flow is Abnormal)
- A-3 Troubleshooting for Temperature Control Function
- A-4 Troubleshooting for Air Conditioner Compressor and Cooling System (Electrical System)
- A-5 Troubleshooting for Air Conditioner Compressor and Cooling System (Mechanical Systems)
- A-6 Troubleshooting for Hot Water Circuit System
- A-7 Unusual Noise is Heard from Air Conditioner Related Parts
- A-8 Water Leaks from Air Conditioner Related Parts
- A-9 Troubleshooting for Fresh/Recirc Air Changeover
- Precautions for Disconnection and Connection of Air Conditioner Piping
- Handle Compressor Oil
- 90 Circuit Diagrams
- Table of Contents
- Abbreviation List
- Hydraulic Circuit Diagram
- Symbols Used in Hydraulic Circuit Diagram
- Hydraulic Circuit Diagram
- Electrical Circuit Diagram
- Symbols Used in Electric Circuit Diagram
- Electrical Circuit Diagram (1/10)
- Electrical Circuit Diagram (2/10)
- Electrical Circuit Diagram (3/10)
- Electrical Circuit Diagram (4/10)
- Electrical Circuit Diagram (5/10)
- Electrical Circuit Diagram (6/10)
- Electrical Circuit Diagram (7/10)
- Electrical Circuit Diagram (8/10)
- Electrical Circuit Diagram (9/10)
- Electrical Circuit Diagram (10/10)
- Index
Komatsu
