UniCarriers FG20 Series Operation & Maintenance Manual page 124

6. Once the drain plug becomes loose, turn it with
fingers.
7. Oil will spout out. Place an oil catching pan properly.
8. Wipe the drain plug clean.
9. After oil is drained off completely, reinstall the drain
plug.
10. Wipe areas around the drain plug clean.
11. Wind cloth around the oil fill port neck to catch spilt
oil.
12. Add oil up to the specified level, leaving a room of
about one liter. Then, gradually add oil, checking the
oil level with the oil level dipstick.
13. Wipe clean areas around the fill port and reinstall
the oil fill port cap securely.
14. Start the engine and run it at idle rpm to prime oil
throughout the engine.
15. Shut down the engine. After a while, check the oil
level using the oil level dipstick. The oil level should
be between the H and L marks on the dipstick. If the
level is low, add oil.
■ CHANGING ENGINE OIL FILTER
CAUTION
The engine is very hot for a while after the engine
is shut down. Change the engine oil filter after the
engine cools down enough.
Change the engine oil filter in the following manner:
1. Using a filter wrench, loosen the filter cartridge and
remove.
2. Get a new filter cartridge.
3. Wipe clean the cylinder block in the cartridge
mounting area.
4. Apply a thin coat of engine oil on the "O"-ring of the
new filter cartridge.
5. Hand tighten the new filter cartridge. After the "O"-
ring touches the seal surface, use a filter wrench to
tighten the cartridge.
• Rough guide for tightening
K21: about 1/3 of a turn
PERIODIC INSPECTION
4-33
C240
A
V2403
B
K21
V2403
B
A
A
: FILL PORT
B
: DRAIN PLUG