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.
Replacement of the high-pressure piping must be made as an assembly.
If there are any problems, the parts must be replaced. Ask your Komatsu distributor for replacement.
METHOD FOR CHECKING FOR
MISSING FUEL SPRAY PREVENTION CAP,
HARDENING OF RUBBER
The fuel spray prevention caps on the fuel injection piping and both ends of the high-pressure piping act to pre-
vent the fuel from coming into contact with high-temperature parts of the engine and causing a fire if the fuel
should leak or spray out.
Check fuel spray prevention caps (14 places) visually or with a finger to see if any of them has fell off, or the
rubber portion is hardened.
If there are any problems, the related parts must be replaced. Ask your Komatsu distributor for replacement.
METHOD FOR CHECKING WEAR OF DAMPER GEAR
Checking is not necessary for initial 4000 hours.
Ask your Komatsu distributor for checking the wear amount of damper gear.
EVERY 4500 HOURS MAINTENANCE
Maintenance for every 50, 100, 250 and 500 hours service should be performed at the same time.
METHOD FOR CLEANING KDPF
Contact your Komatsu distributor for cleaning of the KDPF.
METHOD FOR CLEANING DEF TANK
Ask your Komatsu distributor for cleaning of the DEF tank.
EVER
Y 8000 HOURS MAINTENANCE
Maintenance for every 50, 100, 250, 500, 1000, 2000 and 4000 hours service should be performed at the same
time.
METHOD FOR REPLACING FUEL SPRAY PREVENTION CAP
Ask your Komatsu distributor for replacement of the fuel spray prevention caps.
METHOD FOR REPLACING STARTING MOTOR
(For the machines equipped with the auto idle stop function)
Ask your Komatsu distributor for replacement of the starting motor.
MAINTENANCE MAINTENANCE PROCEDURE
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