Komatsu Bulldozer D37EX-23 D37PX-23 D39EX-23 D39PX-23 service & repair manual

Description Komatsu Bulldozer D37EX-23 D37PX-23 D39EX-23 D39PX-23 service & repair manual

Komatsu Bulldozer D37EX-23, D37PX-23, D39EX-23, D39PX-23 pdf workshop service repair manual + operation & maintenance manual

Serial numbers:
80001 and up
90001 and up

Specifications, testing, troubleshooting, maintenance, technical data, electrical wiring diagrams, hydraulic schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
Specifications
Specification drawing
Weight table
Table of fuel, coolant, and lubricants

Structure and function
Engine and cooling system
Engine related parts
VFT
EGR system piping drawing
EGR system circuit diagram
EGR valve
EGR cooler
KCCV layout drawing
KCCV ventilator
KDOC muffler
Cooling system
Cooling fan motor
Oil cooler bypass and HSTcharge safety valve
Power train
Power train system
Damper
Hydraulic component layout of HST
Steering and brake control
HST pump
HST motor
Charge pump
Solenoid valve
Final drive
Undercarriage and frame
Main frame
Track frame and idler cushion
Hydraulic system
Hydraulic component layout
Work equipment control system
Hydraulic tank
CLSS
Work equipment and cooling fan pump
Control valve
Ripper PPC valve
Angle control
EPC valve
Work equipment
Blade
Ripper
Piston valve
Cab and its attachments
ROPS cab
Cab mount
Electrical system
Electrical control system
Machine monitor system
KOMTRAX system
System component parts
Sensor

Standard value tables
Standard service value table
Standard value table for engine
Standard value table for machine
Standard value table for electrical system

Testing and adjusting
Related information on testing and adjusting
Tools for testing and adjusting
Sketch of tools for testing and adjusting
Engine and cooling system
Testing engine speed
Testing exhaust gas color
Testing and adjusting valve clearance
Testing compression pressure
Testing blowby pressure
Testing engine oil pressure
Testing fuel pressure
Testing fuel return rate and leakage
Bleeding air from fuel system
Testing fuel circuit for leakage
Handling cylinder cutout mode operation
Handling no-injection cranking operatio
Testing of installed condition of cylinder heads and manifolds
Testing engine piping for damage and looseness
Replacing belt for alternator and air conditioner compressor
Writing compensation values at replacement of injector and engine controller
Power train
Testing and adjusting HSToil pressure
Testing outlet pressure of solenoid valve
Testing if machine travels straight
Simple test procedure for brake performance
Adjusting deceleration/brake pedal
Adjusting parking brake lever
Move disabled machine urgently
Undercarriage and frame
Adjusting idler clearance
Checking sprocket wear
Testing and adjusting track tension
Hydraulic system

Releasing remaining pressure in work equipment cylinder
Testing and adjusting work equipment oil pressure
Testing source pressure of control circuit
Testing outlet pressure of work equipment EPC valve and fan EPC valve
Isolating the parts causing hydraulic drift in blade and ripper
Testing internal oil leakage of work equipment cylinder
Testing fan speed
Testing fan circuit oil pressure
Bleeding air from hydraulic circuit
Work equipment
Adjusting work equipment lock lever
Adjusting play of blade center ball
Electrical system
Special functions of machine monitor
Adjustment method when HSTcontroller has been replaced
Adjustment method when electric or hydraulic device has been replaced
Adjusting rearview camera angle
Testing windshield wiper operation
Replacing windshield wiper blade
Handling voltage circuit of engine controller
Handling battery disconnect
Testing diodes

Troubleshooting
Related information on troubleshooting
Troubleshooting points
Sequence of events in troubleshooting
Checks before troubleshooting
Inspection procedure before troubleshooting
Preparation for troubleshooting of electrical system
Classification and procedures for troubleshooting
Symptom and troubleshooting numbers
Information in troubleshooting table
Troubleshooting method for open circuit in wiring harness of pressure sensor system
Connector list and layout
Connector contact identification
T-branch box and T-branch adapter table
Fuse location table
Failure codes table
Troubleshooting by failure code (Display of code)

Track frame and idler cushion
Idler
Track roller
Carrier roller
Track shoe
Hydraulic system
Hydraulic tank
Work equipment and cooling fan pump
Control valve
Ripper PPC valve
Work equipment
Blade
Cutting edge and end bit
Ripper
Lift cylinder
Tilt cylinder
Angle cylinder
Ripper cylinder
Cab and its attachments
Cab mount
Electrical system
System component parts

Air conditioner components
Precautions for refrigerant
Air conditioner component
Configuration and function of refrigeration cycle
Outline of refrigeration cycle
Air conditioner unit
Dual pressure switch
Pressure switch
Compressor
Condenser
Receiver drier
Procedure for testing and troubleshooting
Electrical circuit diagram
System diagram
Parts and connectors layout
Testing relays
Troubleshooting chart
Information described in troubleshooting table
A-1 Troubleshooting for condenser fan
A-2 Troubleshooting for compressor and refrigerant system (Air is not cooled)
A-3 Troubleshooting for blower motor system (No air comes out or air flow is abnormal)
A-4 Troubleshooting for temperature control
Troubleshooting with gauge pressure
Connection of service tool
Precautions for disconnecting and connecting hoses and tubes in air conditioner circuit

Diagrams and drawings
Hydraulic circuit diagram
Symbols in hydraulic circuit diagram
Electric circuit diagram
Symbols in electric circuit diagram

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