Komatsu PC10-7 PC15-3 PC20-7 Shop Manual

BLEEDING AIR
TROUBLESHOOTING
POINTS TO REMEMBER WHEN TROUBLESHOOTING
SEQUENCE OF EVENTS IN TROUBLESHOOTING
PRECAUTIONS WHEN CARRYING OUT MAINTENANCE
CHECKS BEFORE TROUBLESHOOTING
ELECTRICAL CIRCUIT DIAGRAM
POSITION OF CONNECTORS FOR TROUBLESHOOTING
CONNECTION TABLE FOR CONNECTOR
HANDLING CONNECTORS
METHOD OF USING TROUBLESHOOTING CHARTS
TROUBLESHOOTING OF ELECTRICAL SYSTEM (C MODE)
C-1. THIS ENGINE DOES NOT STOP WHEN THE STARTING SWITCH IS TURNED OFF
TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE)
H-1 SPEEDS OF WORK EQUIPMENT, TRAVEL SWING ARE ALL SLOW ALL WORK
EQUIPMENT, TRAVEL, SWING LACK POWER
H-2 THERE IS EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS WORK EQUIPMENT
TRAVEL, SWING DO NOT MOVE, OR SPEED IN EXTREMELY SLOW
H-3 ABNORMAL NOISE GENERATED (FROM AROUND PUMP)
H-4 CONTROL LEVER IS HEAVY
H-5 WORK EQUIPMENT (BOOM, ARM, BUCKET) SPEED IS SLOW EXCESSIVE HYDRAULIC
DRIFT

SEBM020P0703

SERIAL No.
25001 and up
5001 and up
35001 and up