EVERY 500 HOURS MAINTENANCE
Maintenance for every 50 and 250 hours should be performed at the same time.
METHOD
FOR CHANGING OIL IN ENGINE OIL PAN, REPLACING ENGINE OIL
FILTER CARTRIDGE
WARNING
Immediately after the engine is stopped, its parts and oil are still very hot, and may cause burn injury.
W
ait for the temperature to go down, and then start the work.
Refill capacity: 27 ℓ {7.13 U.S.Gal} 
Prepare a socket wrench and a filter wrench.
Prepare a container to catch drained oil.
1.
Remove cover (1) under the front cover, and pull out the
drain hose.
2.
Place the oil container to catch oil under the hose.
3.
Loosen drain plug (P) to drain oil. Do it slowly so that you
do not get splashed with drained oil.
4.
Tighten drain plug (P).
5.
Check the drained oil.
If
there are excessive metal particles or foreign material,
contact your Komatsu distributor.
6.
Install cover (1).
7.
Remove the mounting bolts (4 pieces) from engine side
cover
(2) on the right side of the machine, and remove en-
gine side cover (2).
MAINTENANCE PROCEDURE MAINTENANCE
4-50
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