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MAINTENANCE
SERVICE PROCEDURE
CHECK FOR LOOSE ENGINE HIGH-PRESSURE PIPING CLAMPS, 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.
CHECKING FOR MISSING FUEL SPRAY PREVENTION CAP, HARDENING OF RUBBER
The fuel spray prevention caps (12 places) on the fuel injection piping and both ends of the high-pressure piping act
to prevent 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 visually and touch by hand to check that there are no missing caps, loose bolts or
hardening of the rubber. 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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