Komatsu PC1250-11, Original Instructions Manual

Page: 392 / 452

NOTICE
If the nitrogen gas charge pressure in the accumulator is low and operations are continued, it becomes
impossible to release the remaining pressure inside the hydraulic circuit if a failure occurs on the ma-
chine.
Replace the accumulator every 2 years or every 4000 hours, whichever comes sooner. Ask your Komatsu dis-
tributor for replacement.
The accumulator is installed to the position shown in the figure.
METHOD FOR CHECKING AND ADJUSTING AIR COMPRESSOR
Ask your Komatsu distributor for inspection and adjustment of the air compressor.
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 clamps (1) to (23) for high-pressure pipe visually and with your fingers that there are no loose mounting
bolts or hardening of the rubber.
MAINTENANCE PROCEDURE MAINTENANCE
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