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 cir-
cuit if a failure occurs on the machine.
Replace the accumulator every 2 years or every 4000 hours,
whichever comes sooner. Ask your Komatsu distributor for re-
placement.
The accumulator is installed to the position shown in the figure.
METHOD FOR CHECKING FOR LOOSENESS OF ENGINE HIGH-PRESSURE PIP-
ING CLAMP, HARDENING OF RUBBER
Check the clamps (1) to (20) visually and with your fingers that there are no loose bolts or hardening of the rub-
ber.
If there is any problem, the related parts must be replaced. Ask your Komatsu distributor for replacement.
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. Be sure
to check that the specified high-pressure piping clamps are installed correctly.
MAINTENANCE MAINTENANCE PROCEDURE
4-79
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