Factory Shop Manual For Komatsu Backhoe Loader. Manual Contains Illustrations, Instructions, Diagrams For Step By Step Remove And Install, Assembly And Disassembly, Service, Inspection, Repair, Troubleshooting, Tune-Ups.
Format: PDF
Language: English
Pages: 570
Number: WEBM001004 (issued 2004)
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes
Model
Komatsu Backhoe Loader
WB97R-2
SN 97F21409 And Up
Contents
FOREWORD
-STRUCTURE AND FUNCTION
Power Train
Transmission
Drive Shafts
Control Valve Block
Front Axle
Rear Axle
Hydraulic Pump
Steering Unit
Hydraulic Circuit Standard
Hydraulic Circuit (With PPC Valve)
Shovel Control Valve
Shovel Control Valve
Backhoe Control Valve
CLSS (Closed Center Load Sensing System)
PPC Valve (Optional)
Solenoid Valve
Safety Valve
Brake Pump
Shovel Cylinders
Backhoe Cylinders
Air-Conditioning Unit
How The Air-Conditioning Unit
Functions
Engine Wiring Harness
Front Line Wiring Harness
Lateral Platform Wiring Harness
Lateral Dashboard Wiring Harness
Backhoe Servocontrol Wiring Harness (Frame)
Backhoe Servocontrol Wiring Harness (Cabin)
Work Light Wiring Harness
Atc24 Wiring Harness
Fuses Box
Fuses Box Atc24
Electrical Diagram EGM
Electrical Diagram ATC24
-TESTING AND ADJUSTING
Normal Or Standard Technical Data
Special Tools
Measuring Engine Speed
Adjusting Valve Clearance
Measuring Compression Pressure
Testing And Adjusting Fuel Injection Timing
Checking And Tightening The Fan – Belt
Checking And Tightening The Compressor Fan – Belt
Measuring Accelerator Pedal Operating
Travel And Accelerator Lever
Adjusting Brake Pedal Travel, Brake Alignment
Air Bleeding – Releasing Residual Pressure
Checking And Setting Pressure In The Attachments Hydraulic Circuit
Testing And Adjusting Of Load Sensing Signal (LS Valve)
Testing And Adjusting Of Unloading Valve
Checking Unloading Valve Functionality
Testing Priority Valve Operation
Testing And Setting Steering Control System Pressure
Checking And Calibrating The Servo Control Feed Valve (Optional)
Testing Brake System
Control Of The Engine Speed Under Load
Testing Pressures In The Power Train Group
Testing The Correct Functioning Of The Power Train Clutches
Adjusting The Sensor For Return To Dig Device
Analysis Of Causes Hydraulic Drift
Testing The Air-Conditioning Unit
Emptying The Air-Conditioning Unit
Front Axle Troubleshooting
Rear Axle Troubleshooting
Transmission Troubleshooting
Checking And Inspection Of The Electronic Control Unit
Troubleshooting
-REMOVAL AND INSTALLATON, DISASSEMBLY AND ASSEMBLY
Precautions To Be Taken While Working
Special Tools
Removal Of Starting Motor
Installation Of The Starting Motor
Removal Of The Alternator
Installation Of The Alternator
Removal Of The Air-Conditioning Unit Compressor
Installation Of The Air-Conditioning Unit Compressor
Removal Of The Injection Pump
Installation Of The Injection Pump
Removal Of The Valve Cover
Installation Of The Valve Cover
Removal Of The Injection Nozzles
Installation Of The Injection Nozzles
Removal Of The Thermostat
Installation Of The Thermostat
Removal Of The Cooling Liquid Pump
Installation Of The Coolant Liquid Pump
Removal Of The Turbocompressor
Installation Of The Turbocompressor
Removal Of The Cylinder Head
Installation Of The Cylinder Head
Removal Of The Front Counterweight
Installation Of The Front Counterweight
Removal Of The Radiator Unit
Installation Of The Radiator Group
Removal Of The Condenser
Installation Of The Condenser
Removal Of The Muffler
Installation Of The Muffler
Removal Of The Exhaust Pipe
Installation Of The Exhaust Pipe
Removal Of The Engine Hood
Installation Of The Engine Hood
Removal Of The Cab
Installation Of The Cab
Removal Of The Heat And Air-Conditioning Group
Installation Of The Heating And Air-Conditioning Group
Removal Of The Fuel Tank
Installation Of The Fuel Tank
Removal Of Hydraulic Oil Tank
Installation Of The Hydraulic Oil Tank
Removal Of The Engine-Gearbox-Pump Group
Installation Of The Engine Gearbox-Pump Group
Removal Of The Piston Pump
Installation Of The Piston Pump
Removal Of The Transmission
Installation Of The Transmission
Disassembly And Assembly Of Transmission
Removal Of The Convertor
Installation Of The Convertor
Removal Of The Transmission-Reverse, Direction Indicator And Headlight Dipper Beam Control Group (Standard Version)
Installation Of The Transmission Reverse, Direction Indicator And Headlight Dipper Beam Control Group 1
Removal Of The Transmission-Reverse,
Direction Indicator And Headlight Dipper Beam Control Group (EGM Version)
Installation Of The Transmission Reverse, Direction Indicator And Headlight Dipper Beam Control Group
Removal Of The Steering Unit
Installation Of The Steering Unit
Removal Of The Working Brake Pump Group
Installation Of The Working Brake Pump Group
Removal Of The Front Working Equipment Control Valve
Installation Of The Front Working Equipment Control Valve
Disassembly And Assembly Front And Backhoe Control Valve
Removal Of The Front Axle
Installation Of The Front Axle
Disassembly Of Front Axle
Assembly Of Front Axle
Removal Of The Rear Axle
Installation Of The Rear Axle
Disassembly Of Rear Axle
Assembly Of Rear Axle
Removal Of The Front Bucket Boom-Raising Cylinder
Installation Of Front Bucket
Boom-Raising Cylinder
Removal Of The Front Bucket Tilt Cylinders
Installation Of The Front Bucket Tilt Cylinders
Removal Of The Front Bucket
Installation Of The Front Bucket
Removal Of The Front Working Equipment
Installation Of The Front Working Equipment
Removal Of The Backhoe Control Valve (Standard Version)
Installation Of The Backhoe Control Valve
Removal Of The Backhoe Control Valve (Version With Servocontrol)
Installation Of The Backhoe Control Valve
Removal Of The PPC Valves Controlling The Backhoe Control Valves (Optional)
Installation Of The PPC Valves
Replacing The PPC Valve Support Release Cables
Removal Of The PPC Valve Support Return Gas Spring
Installation Of The PPC Valve Support Return Gas Spring
Removal Of The Solenoid Valve Assembly Controlling The Hammer And Jig Arm/Hammer And Side Digging Boom
Installation Of The Solenoid Valve Assembly Controlling The Hammer And Jig Arm/Hammer And Side Digging Boom
Removal Of The Servocontrol Feed Valve (Optional)
Installation Of The Servocontrol Feed Valve (Optional)
Removal Of Backhoe Boom Cylinder
Installation Of The Backhoe Boom Cylinder
Removal Of The Backhoe Arm Cylinder
Installation Of The Backhoe Arm Cylinder
Removal Of The Jig Arm Cylinder
Installation Of The Jig Arm Cylinder
Removal Of The Backhoe Bucket Cylinder
Installation Of The Backhoe Bucket Cylinder
Removal Of The Outrigger Cylinders 268
Installation Of The Outrigger Cylinders
Removal Of The Backhoe Swing Cylinders270
Installation Of The Backhoe Swing Cylinders
Removal Of Backhoe Backframe Lock Cylinder
Installation Of Backhoe Backframe
Lock Cylinder
Disassembly Of Cylinders (Front Bucket Raise And Tilt, Boom, Arm, Bucket, Outriggers And Jig Arm)
Assembly Of Cylinders (Front Bucket Raise And Tilt, Boom, Arm, Bucket, Outriggers And Jig Arm)
Disassembly Of Boom Swing Cylinder
Assembly Of Boom Swing Cylinder
Disassembly Of Backhoe Backframe Lock Cylinder
Assembly Of Backhoe Backframe Lock Cylinder
Removal Of The Boom Safety Cylinder
Installation Of The Boom Safety Cylinder
Removal Of The Backhoe Working Equipment
Installation Of The Backhoe Working Equipment
Removal Of The Backhoe Bucket
Installation Of The Backhoe Bucket
Removal Of The Arm
Installation Of The Arm
Removal Of Complete Jig Arm
Installation Of The Complete Jig Arm
Removal Of 2Nd Arm
Installation Of 2Nd Arm
Removal Of 2Nd Arm Guides
Installation Of 2Nd Arm Guide
Removal Of The Backhoe Boom
Installation Of The Backhoe Boom
Removal Of The Backhoe Swing Bracket
Installation Of The Backhoe Swing Bracket
Removal Of Backhoe Backframe
Installation Of Backhoe Backframe
-MAINTENANCE STANDARD
Transmission
Front Axle
Rear Axle
Hydraulic Pump
2-Spool Control Valve
3-Spool Control Valve
3-Spool Control Valve (With Return To Dig)
6-Spool Control Valve (Standard)
7-Spool Control Valve (Standard)
8-Spool Control Valve (Standard)
6-Spool Control Valve (With Servocontrol)
7-Spool Control Valve (With Servocontrol)
8-Spool Control Valve (With Servocontrol)
Brake Pump
Shovel Cylinders
Backhoe Cylinders
Front Working Equipment
Swing Bracket
Backhoe Working Equipment
What you get
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