Komatsu PW118MR-11, Operation & Maintenance Manual

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5.
Close the machine right front cover.
METHOD FOR CHECKING FAN BELT TENSION AND REPLACING FAN BELT
Special tools are required for the inspection and replacement.
Ask your Komatsu distributor to perform this work.
REMARK
As the automatic fan belt tensioner is installed to this machine, no belt tension adjustment is required.
EVERY 2000 HOURS MAINTENANCE
Maintenance for every 100, 250, 500 and 1000 hours service should be performed at the same time.
METHOD FOR CHANGING OIL IN HYDRAULIC TANK, CLEANING HYDRAULIC
TANK STRAINER
(for machines with synthetic biodegradable oil type HEES)
k k
WARNING
• Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn in-
jury. Wait for the temperature to go down, and then start the work.
• The oil may spray out when the oil filler cap is removed. Turn it slowly to release the internal pres-
sure, then remove it carefully.
• Do not mix the synthetic biodegradable oil type HEES with ordinary hydraulic oils, since when the
temperature increases insoluble compounds are generated, which deposit on the filters and clog
them. The maximum concentration of ordinary oil must not exceed 1% of the total quantity of oil in
the hydraulic system.
NOTICE
If the machine is equipped with a hydraulic breaker, the oil deteriorates faster than when performing
normal operations with the bucket. Consequently, carry out maintenance in accordance with “MAINTE-
NANCE INTERVAL FOR HYDRAULIC BREAKER”.
Refill capacity: 80 ℓ
Items to be prepared
• Container to catch the drained oil
• Oil drain hose (supplied)
1.
Retract the cylinders of the bucket and the arm completely,
fully extend the cylinder of the 2-piece boom and lower the
boom until the bucket teeth rest on the ground. Lower the
blade to the ground.
MAINTENANCE PROCEDURE MAINTENANCE
4-66
WENAM00130