SERVICE PROCEDURE MAINTENANCE
4-46
EVERY 500 HOURS SERVICE 0.
Maintenance for every 50, 100 and 250 hours service should be carried out at the same time.
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE 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.
! Container to catch drained oil: Min 38 liters (10.04 US gal) capacity
! Refill capacity: 38 liters (10.04 US gal)
! Filter wrench
1. Open the engine side cover on the right side of the chassis.
2. Open oil filler (F).
3. Place a container to catch the oil under drain plug (P).
4. Loosen drain plug (P), and drain the oil.
5. Check the drained oil, and if there are excessive metal parti-
cles or foreign material, please contact your Komatsu dis-
tributor.
6. Install drain plug (P).
7. Using the filter wrench, turn filter cartridge (1) counterclock-
wise to remove it.
In particular, if this operation is carried out immediately after
stopping the engine, a large amount of oil will come out, so
wait for 10 minutes before starting the operation.
8. Clean the filter holder, fill the new filter cartridge with engine
oil, then coat the seal and thread of the filter cartridge with
engine oil (or coat thinly with grease)and install.
9. When installing, bring the seal surface into contact with the
filter holder, then tighten a further 3/4 to 1 turns.
10.After replacing the filter cartridge, add engine oil through oil
filler (F) until the oil level is between the H and L marks on
the dipstick (G).
11.Run the engine at idling for short time, then stop the engine,
and check the oil is between the H and L marks on the dip-
stick. For details, see “CHECK OIL LEVEL IN ENGINE OIL
PAN, ADD OIL ( 3-71 )“.
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