METHOD FOR CHECKING FOR LOOSENESS OF ENGINE HIGH-PRESSURE PIP-
ING CLAMP
, HARDENING OF RUBBER
NOTICE
If the engine operation is continued while any bolt is loosened or any rubber is hardened or removed,
the contact portions of the high-pressure piping may be worn and may be broken by vibration. Always
check that the proper high-pressure piping clamps are correctly installed.
Check visually or with a finger to check that there is no hardening of the rubber portion and no loose bolts of the
mounting clamps (5 places) for the high-pressure piping between the supply pump and the common rail.
• If there is any loose bolt or hardened rubber portion, ask your Komatsu distributor for replacement.
• Replacement of the high-pressure piping must be made as an assembly.
MAINTENANCE PROCEDURE MAINTENANCE
4-80
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