SERVICE PROCEDURE MAINTENANCE
4-52
EVERY 500 HOURS SERVICE 4
Maintenance for every 50 and 250 hours service should be carried out at the same time.
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE 4
WARNING
Parts and oil are at high temperature immediately after the engine is stopped and may cause serious
burns. Wait for the oil temperature to go down before performing this operation.
q Refill capacity: 28 liters
q Prepare a socket wrench and filter wrench.
1. Remove the cover (1) on the bottom of the machine and
set a container to catch the drained oil directly under the
drain plug.
2. Take the end of hose (2) out of the inspection window.
3. Loosen drain plug (P) to drain oil. Do it slowly so that you
do not get splashed with drained oil.
4. Check the drained oil, and if there are excessive metal par-
ticles or foreign material, please contact your Komatsu dis-
tributor.
5. Install drain plug (P).
6. Open the engine side cover on the right side of the
machine.
7. Remove bolts (3) - 2 bolts in total - to remove lower side
cover (4).
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