EVERY 1000 HOURS MAINTENANCE
Maintenance for every 100, 250 and 500 hours should be performed at the same time.
METHOD FOR REPLACING HYDRAULIC OIL FIL
TER ELEMENT
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.
• When removing the oil filler cap, the oil may spurt out. Turn it slowly to release the internal pres-
sure, then remove it carefully.
NOTICE
If
the machine is equipped with a hydraulic breaker, the hydraulic oil deteriorates faster than in the nor-
mal bucket digging operation. Accordingly, perform the maintenance by referring to “MAINTENANCE IN-
TERVAL FOR HYDRAULIC BREAKER”.
1.
Open the dirt cover (1).
Open
the dirt cover (1) fully and it will be secured by the
cover support lever (2).
2.
Loosen the bolt (3) of the hydraulic tank, move the plate
(4)
on the oil filler port (F), and turn the cap of the oil filler
port (F) slowly to remove it.
Release the internal pressure.
MAINTENANCE MAINTENANCE PROCEDURE
4-85
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