Komatsu Motor Grader GD610 GD620 GD660 GD670 Shop Manual

COVER
CONTENTS
10 ENGINE
20 POWER TRAIN
40 STEERING SYSTEM
50 BRAKE SYSTEM
60 HYDRAULIC SYSTEM
70 WORK EQUIPMENT
80 ELECTRIC AND ELECTRONIC SYSTEM
81 STRUCTURE AND FUNCTION
ELECTRICAL CIRCUIT DIAGRAM
a CIRCUIT DIAGRAM OF CAB
ELECTRONIC VEHICLE MONITORING SYSTEM(EVMS)
ADJUSTING SPEEDOMETER MODULE(IF EQUIPPED)
• 82 TESTING AND ADJUSTING
TABLE OF ELECTRICAL JUDGEMENT STANDARD VALUE
CIRCUIT DIAGRAM
CONNECTOR POSITION FOR TROUBLESHOOTING
POSITION OF CONNECTOR(D TYPE)
POSITION OF TYPE)
CONNECTOR TERMINAL NUMBERS

TROUBLESHOOTING CHART FOR ELECTRONIC VEHICLE MONITORING SYSTEM(MI TO TYPE)
M-1 WHEN STARTING SWITCH IS TURNED ON,MONITOR PANEL DISPLAY DOES NOT APPEAR.
M-2 WHEN STARTING SWITCH IS TURNED ON,MONITOR PANEL DISPLAY DOES NOT GO OUT
A M-3 WHEN STARTING SWITCH IS TURNED NOT START BEFORE STARTING ITEMS FLASH OR
PREHEATING ITEM LIGHTS UP.
M-4 WHEN STARTING SWITCH IS TURNED BEFORE STARTING ITEMS FLASH.
M-5 WHEN STARTING SWITCH IS TURNED NOT START ITEMS FLASH
M 6 WHEN STARTING SWITCH IS ON(ENGINE ITEMS FLASH
M-7 FUEL TANK IS NOT FULL BUT DISPLAY SHOWS FULL TANK
M-8 NO DISPLAY IS GIVEN FOR FUEL LEVEL
M-9 ENGINE COOLANT TEMPERATURE IS HIGH,BUT LOWEST LEVEL DISPLAYED
M-IO ENGINE COOLANT TEMPERATURE GAUGE GIVES NO DISPLAY
M-11 TURN SIGNAL LAMPS,HIGH BEAM LIGHT UP ABNORMALLY,OR DO NOT LIGHT UP
M-12 SPEEDOMETER DISPLAY DOES NOT WORK NORMALLY
M-13 WHEN ENGINE IN STARTED,SERVICE METER DOES NOT MOVE,WHEN ENGINE IN STOPPED,SERVICE METER MOVES
M-14 MONITOR PANEL LAMPS DO NOT LIGHT UP
M-15 CENTRAL WARNING LAMP DOES NOT GO OUT
M-16 CENTRAL WARNING BUZZER DOES NOT STOP
M-17 EMERGENCY ITEM OR NON-EMERGENCY ITEMS IS FLASHING,BUT WARNING LAMP DOES NOT FLASH
M-18 EMERGENCY ITEM IS FLASHING,BUT ALARM BUZZER DOES NOT SOUND

SEBMG6150110