Komatsu WA250PT-5H, Operation & Maintenance Manual

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Service procedure
MAINTENANCE
Every 1000 hours service
4-50
Every 1000 hours service 0.
Maintenance for every 50, 100, 250 and 500 hours service should be carried out at the same time.
Change oil in transfer case 0.
WARNING
The parts and oil are at high temperature after the engine is stopped, and may cause burns. Wait for
the temperature to go down before starting the work.
When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it.
Refill capacity: 6.9 liters (1.82 US gal)
1. Set a container to catch the oil under drain plug (P), then
remove drain plug (P) and drain the oil.
To prevent the oil from pouring out suddenly, loosen drain
plug (P) and remove it gradually.
2. After draining the oil, install drain plug (P).
3. Loosen bolt (1), remove cover (2), then take out strainer (3).
4. Remove any dirt stuck to strainer (3), then wash it with
clean diesel oil or flushing oil. If the strainer is damaged,
replace it with a new part.
5. Replace O-ring (4) of cover (2) with a new part, then install.
6. Refill the specified quantity of engine oil through oil filler (F).
7. After filling with oil, check that the oil is at the specified level.
For details, see “Check oil level in transfer case, add oil on
page 4-27“.
8. Check that there is no oil leakage from the transfer case.