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MAINTENANCE
SERVICE PROCEDURE
EVERY 500 HOURS SERVICE
Maintenance for every 250 hours should be performed at the same
time.
CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE
(including engine by-pass filter cartridge)
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.
Refill capacity: 38 liters (10.04 US gal)
Prepare a socket wrench and filter wrench.
1.
Remove the covers at the bottom left at the front of the
machine and on the side face, and put a container directly
underneath to catch the drained oil.
2.
Loosen drain plug (P) (with a slit) slowly to avoid getting oil on
yourself, and drain the oil.
3.
Check the drained oil, if there is excessive metal particles or
foreign material, contact your Komatsu distributor.
4. Install drain plug (P).
5.
Using a filter wrench, turn filter cartridge (1) counterclockwise
to remove it.
6. Clean the filter holder, fill the new filter cartridge with clean oil,
coat the thread and packing portion of the new filter cartridge
with oil (or coat thinly with grease), then install.
7. When installing the filter cartridge, bring the packing surface
into contact with the filter holder, then tighten a further 3/4 to 1
turn.
8. After replacing the filter cartridge, add oil through oil filler (F)
until the oil level is between the H and L marks on the dipstick
(G).
9. Run the engine at idling for a short time, then stop the engine,
and check that the oil level is between the H and L marks on the
dipstick. For details, see "CHECK OIL LEVEL IN ENGINE OIL
PAN, ADD OIL (PAGE 3-78)".
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