Komatsu Motor Grader GD705-5 parts + service manual

Description Komatsu Motor Grader GD705-5 parts + service manual

Komatsu Motor Grader GD705-5 pdf parts manual + workshop service manual + operation & maintenance manual

Serial numbers:
26001 and up

Technical data, specifications, testing, troubleshooting, maintenance, lubrication, electrical diagrams, hydraulic schematics, adjusting, assembly, disassembly, removal, installation instructions and other information

MANUAL CONTENT:
Index and foreword
Foreword and general information
Safety notice
How to read the shop manual
Explanation of terms for maintenance standard
Handling of electric equipment and hydraulic components
Handling of connectors newly used for engines
How to read electric wire code
Precautions when carrying out work
Method of disassembling and connecting pushpull type coupler
Standard tightening torque table
List of Abbreviation
Conversion table

Specification
Specification drawing
Weight table
Table of fuel, coolant and lubricants

Structure and function
Engine and cooling system
Cooling system
Cooling fan motor
Power train system
Power train system drawing
Power train piping drawing
Transmission control
Torque converter
Transmission
Transmission control valve
ECMV
Main relief and torque converter relief valve
Front axle
Final drive
Differential
Differential lock solenoid valve
Tandem drive
Steering system
Steering piping diagram
Priority valve
Steering valve
Brake system
Brake hydraulic piping diagram
Brake valve
Slack adjuster
Accumulator (for brake)
Charge valve
Wheel brake
Parking brake and bank control valve
Parking brake
Undercarriage and frame
Frame
Tire
Hydraulic system
Work equipment hydraulic component layout
Work equipment control
Hydraulic tank
Main pump
Power train pump
Control valve
CLSS
Functions and operation by valve
Swivel joint
Pilot check valve
Separately installed safety valve
Accumulator (for blade)
Work equipment
Circle and drawbar
Blade
Lifter
Circle rotation motor
Circle rotation gear
Cab
Cab
Electrical system
Machine monitor
Automatic shift control system
Transmission controller
Engine controller
KOMTRAX system
Starting engine circuit
Stopping engine circuit
Preheating circuit
Engine power mode select circuit
Cooling fan control function
Sensor

Standard value table
Standard value table for engine
Standard value table for machine

Testing and adjusting
Precautions before work
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 boost pressure
Testing exhaust gas temperature
Testing exhaust gas color
Testing and adjusting valve clearance
Testing compression pressure
Testing blowby pressure
Testing engine oil pressure
Handling equipment of fuel system devices
Releasing remaining pressure from fuel system
Testing fuel pressure
Testing fuel return rate and leakage
Bleeding air from fuel circuit
Testing fuel circuit for leakage
Handling cylinder cutout mode operation
Handling noinjection cranking operation
Testing muffler (main body) and stuck muffler for looseness and damage
Testing muffler function
Testing installed condition of cylinder heads and manifolds
Testing of engine piping for damage and looseness
Testing and adjusting air conditioner compressor belt tension
Checking and replacing alternator belt
Checking and replacing autotensioner
Power train
Testing power train oil pressure
Adjusting transmission speed sensor
Retrieval of disabled machine due to transmission valve failure
Flushing procedure for torque converter and transmission circuits
Testing and adjusting toein
Adjusting bearing preload
Testing and adjusting differential lock oil pressure
Steering system
Testing and adjusting steering oil pressure
Testing oil leakage of steering cylinder
Bleeding air from steering circuit
Brake system
Testing and adjusting brake oil pressure
Releasing remaining pressure from brake circuit
Bleeding air from brake circuit
Testing wear of wheel brake disc
Testing and adjusting parking brake
Parking brake emergency releasing procedure
Procedure for charging brake accumulator with nitrogen gas
Hydraulic system
Testing and adjusting work equipment oil pressure
Testing and adjusting pump LS differential pressure
Testing lift arm lock cylinder circuit oil pressure
Testing oil leakage of work equipment cylinder
Bleeding air from work equipment circuit
Testing cooling fan pump circuit oil pressure
Work equipment system
Adjusting drawbar ball joint clearance
Testing and adjusting circle guide clearance
Adjusting circle rotation gear
Procedure for charging blade accumulator with nitrogen gas
Electrical system
Special functions of machine monitor
KOMTRAX terminal start-up procedure (ORBCOMM)
Lamp indication of KOMTRAX terminal (ORBCOMM)
KOMTRAX terminal start-up procedure (GPRS)
Lamp indication of KOMTRAX terminal (GPRS)
Handling voltage circuit of engine controller
Testing diodes
Pm Clinic
Pm Clinic service

Troubleshooting
Precautions before work
General information on troubleshooting
Points to remember when troubleshooting
Sequence of events in troubleshooting
Checks before troubleshooting
Preparation work for troubleshooting of electrical system
Classification and procedures for troubleshooting
Failure codes table
Failure and troubleshooting numbers
Information in troubleshooting table
Troubleshooting method for open circuit in wiring harness of pressure sensor system
Connector list and layout
Connection table for connector pin numbers
T-branch box and T-branch adapter table
Locations of fuses
Troubleshooting by failure code
Troubleshooting of electrical system (E-mode)
Troubleshooting for hydraulic and mechanical system (H-mode)

Disassembly and assembly
Precautions before work
Related information on disassembly and assembly
How to read this manua
Coating materials list
Special tools list
Sketches of special tools
Engine and cooling system
Removal and installation of fuel supply pump assembly
Removal and installation of fuel injector assembly
Removal and installation of cylinder head assembly
Removal and installation of engine front oil seal assembly
Removal and installation of engine rear oil seal assembly
Removal and installation of cooling fan pump assembly
Removal and installation of cooling fan and fan motor assembly
Removal and installation of radiator assembly
Removal and installation of aftercooler assembly
Removal and installation of power train oil cooler assembly
Removal and installation of fuel tank assembly
Removal and installation of engine hood assembly
Power train
Removal and installation of engine and transmission assembly
Disconnection and connection of transmission and torque converter assembly from/to engine
Disassembly and assembly of transmission assembly
Disassembly and assembly of torque converter assembly
Removal and installation of tandem drive and final drive assembly
Disassembly and assembly of tandem drive assembly
Disassembly and assembly of final drive assembly
Steering system
Removal and installation of steering valve (Orbitrol) assembly
Brake system
Disassembly and assembly of wheel brake assembly
Undercarriage and frame
Removal and installation of center hinge pin
Hydraulic system
Removal and installation of hydraulic tank, battery and frame assembly
Removal and installation of hydraulic tank assembly
Removal and installation of control valve assembly
Disassembly and assembly of control valve assembly
Disassembly and assembly of hydraulic cylinder assembly
Work equipment
Removal and installation of blade assembly
Disassembly and assembly of circle drawbar assembly
Removal and installation of circle rotation gear assembly
Disassembly and assembly of circle rotation gear assembly
Removal and installation of ripper assembly
Cab and its attachments
Removal and installation of operator's cab assembly
Removal and installation of floor frame assembly
Removal and installation of operator's cab glass (adhered window glass)
Removal and installation of air conditioner unit assembly
Electrical system
Removal and installation of engine controller assembly
Removal and installation of starting motor
Removal and installation of battery
Removal and installation of machine monitor assembly
Removal and installation of transmission controller assembly
Removal and installation of KOMTRAX terminal assembly (ORBCOMM)
Removal and installation of KOMTRAX terminal assembly (GPRS)

Maintenance standard
Engine and cooling system
Engine mount and transmission mount
Cooling system
Cooling fan motor
Power train system
Torque converter
Transmission
Transmission control valve
ECMV
Main relief valve and torque converter relief valve
Front axle
Final drive
Differential
Tandem drive
Brake system
Slack adjuster
Wheel brake
Parking brake
Undercarriage and frame
Frame
Hydraulic system
Main pump
Power train pump
Control valve
Hydraulic cylinder
Work equipment
Circle and drawbar
Blade
Lifter
Circle rotation gear

Appendix
Precautions before work
Air conditioner
Precautions for refrigerant
Air conditioner components
Structure and function of refrigeration system
Overview of refrigeration system
Air conditioner unit
Compressor
Condenser
Receiver drier
Air conditioner control panel
Procedure for check and troubleshooting
Circuit diagram and layout of connector pins
System diagram
Detail of air conditioner unit
Parts and connectors layout
Testing air leakage (ducts)
Check with self-diagnosis (control panel display)
Testing temperature control
Testing Fresh/Recirc air changeover
Testing evaporator temperature sensor
Testing relays
Testing blower amp
Troubleshooting Chart
Information in troubleshooting table
Troubleshooting for power supply system (Air conditioner does not operate)
Troubleshooting of compressor and refrigerant system (Air is not cooled)
Troubleshooting for blower motor system (Air does not come out or air flow is improper)
Troubleshooting for temperature control
Troubleshooting for FRESH/RECIRC air changeover
Troubleshooting with gauge pressure
Connection of service tool
Precautions for disconnecting and connecting air conditioner piping
Handling compressor oil

Diagrams and drawings
Hydraulic diagrams and drawings
Symbols used in hydraulic circuit diagrams
Hydraulic circuit diagram
Electrical diagrams and drawings
Symbols used in electric circuit diagrams
Electrical circuit diagram

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