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MAINTENANCE
SERVICE PROCEDURE
EVERY 4000 HOURS SERVICE
Maintenance for every 50, 250, 500, 1000 and 2000 hours service should be carried out at the same time.
CHECK WATER PUMP
Check that there is no play in the pulley or any grease leakage, water leakage, or clogging of the drain hole. If any
problem is found, contact your Komatsu distributor for disassembly and repair or replacement.
CHECK ACTUATION OF COMPRESSOR
Check the following items. If any problem is found, please ask your Komatsu distributor to carry out disassembly,
repair, or replacement.
Are the compressor and magnet clutch turned ON-OFF when the air conditioner switch is turned ON-OFF?
Is any abnormal noise generated from the clutch or compressor body?
CHECK FAN PULLEY
Check that there is no play in the pulley or any grease leakage, water leakage, or clogging of the drain hole. If any
problem is found, contact your Komatsu distributor for disassembly and repair or replacement.
CHECKING HIGH-PRESSURE PIPING CLAMP FOR LOOSENESS AND HARDENING OF RUBBER
Check visually and touch by hand to check that there is no hardening of the rubber and no loose bolts of the
mounting clamps (2 places) for the high-pressure piping between the supply pump and the common rail. If there are
any problems, the parts must be replaced. In this case, please ask your Komatsu distributor to carry out
replacement.
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