Komatsu Motor Grader GD825A-2 service & repair manual

Description Komatsu Motor Grader GD825A-2 service & repair manual

Komatsu Motor Grader GD825A-2 pdf workshop service repair manual + operation & maintenance manual

Serial number 11001 and up

MANUAL CONTENT:
GENERAL
Specification dimension drawings
Specifications
Weight table
Fuel, coolant and lubricants

STRUCTURE AND FUNCTION
General
Power train diagram
Joint
HYDROSHIFT transmission and transfer piping
Hydraulic circuit for power train
Hydraulic circuit diagram for power train
PTO (Power Take Off)
HYDROSHIFT transmission and transfer
Transmission control valve
Transmission control
Drive shaft
Final drive, differential lock and unlock piping
Final drive
Tandem drive
Steering piping
Steering circuit system
Steering circuit diagram
Steering valve
Double relief valve
Check valve
Emergency steering system
Front axle
Wheel
Disc brake
Parking brake
Brake air piping
Brake air circuit system
Brake air circuit diagram
Air drier
Air governor
Air tank
Safety valve
Automatic drain valve
Check valve
Brake valve
Parking brake system
Parking brake solenoid valve
Exhaust valve
Spring cylinder
Hydraulic control piping
Hydraulic circuit system
Hydraulic circuit diagram
Closed center load sensing system (CLSS)
Hydraulic pump
Priority flow divider valve
Surge pressure absorbing valve
Hydraulic control valve
Pressure compensating mechanism of hydraulic control valve
Blade lift speed adjustment mechanism
Pilot check valve
Pilot check valve (with safety valve)
Circle rotation motor
Blade accumulator system
Blade float system
Drawbar and lifter
Blade
Lifter bracket control piping
Circle rotation gear
Rear mount ripper
Hydraulic control linkage
Main frame
Air conditioner
Electrical wiring diagram
Monitor panel, cluster gauge and pilot lamp
Electrical circuit diagram
Electronic vehicle monitoring system (EVMS)
Transmission control system
Sensors
Engine starting circuit
Engine stopping circuit

TESTING AND ADJUSTING
Standard value table for engine
Standard value table for chassis
Tool list for testing and adjusting
Testing and adjusting valve clearance
Measuring compression pressure
Testing and adjusting fuel injection timing
Measuring blow-by pressure
Measuring engine oil pressure
Measuring exhaust gas color
Measuring exhaust gas temperature
Measuring intake air pressure (boost pressure )
Testing and adjusting belt tension
Procedure for adjusting the engine stop motor cable
Adjusting accelerator control
Inching pedal travel and operating force
HYDROSHIFT transmission
Checking differential locking device oil pressure
Steering system
Checking tire runout
Checking air pressure of tire
Checking toe-in
Installation of articulate center pins
Checking wear of brake disc
Checking parking brake
Checking work equipment control lever travel and operating force
Checking hydraulic oil temperature
Checking work equipment hydraulic pressure
Adjusting work equipment hydraulic pressure
Measuring hydraulic drift
Charging blade accumulator with gas
Adjusting blade lift speed
Bleeding air from hydraulic pump
Adjusting slip load of circle rotation clutch
Adjusting speedometer module of machine monitor

DISASSEMBLY AND ASSEMBLY
COATING MATERIAL LIST
SPECIAL TOOL LIST
STARTING MOTOR
ALTERNATOR
NOZZLE HOLDER
FUEL INJECTION PUMP
WATER PUMP
ENGINE OIL COOLER CORE
TURBOCHARGER
AIR COMPRESSOR
CYLINDER HEAD
ENGINE (INCL. TRANSMISSION)
RADIATOR
FUEL TANK
PTO
TRANSMISSION
TRANSFER
TRANSMISSION CONTROL VALVE
HYDROSHIFT TRANSMISSION PUMP
TANDEM AND FINAL DRIVE
FINAL DRIVE
BEVEL GEAR
BEVEL PINION
STEERING VALVE
WHEEL BRAKE
AIR TANK
HYDRAULIC TANK
HYDRAULIC PUMP
HYDRAULIC CONTROL VALVE
MAIN CONTROL VALVE
CIRCLE ROTATION MOTOR
DRAWBAR SHIFT CYLINDER, BLADE
LIFT CYLINDER, LIFTER GUIDE
ARTICULATE CYLINDER
REAR MOUNT RIPPER CYLINDER
HYDRAULIC CYLINDER
CIRCLE ROTATION GEAR AND
HYDRAULIC OIL MOTOR
BLADE
CIRCLE AND DRAWBAR
REAR MOUNT RIPPER
METHOD FOR LIFTING UP ROPS CAB
INSTALLATION OF ROPS
DISCONNECTION AND CONNECTION
OF ARTICULATE SECTION

MAINTENANCE STANDARD
HYDROSHIFT transmission and transfer
Transmission pump
Transmission control valve
Transmission solenoid valve
Final drive
Differential lock-up pump
Tandem drive
Front axle
Steering cylinder
Disc brake
Parking brake
Spring cylinder
Hydraulic control valve
Hydraulic cylinder
Hydraulic pump
Drawbar and lifter
Blade
Circle rotation gear
Ripper
Frame

Engine 6D140-1, 6D140E-2 series workshop service repair manual