Hitachi ZW 180-6 Operator's Manual page 315

8. Using a filter wrench, turn cartridge filter (6)
counterclockwise to remove it.
9. Clean the filter-seating surface. After coating the new
cartridge filter gasket surface with new oil, lightly turn
the cartridge filter clockwise by hand until the cartridge
filter sealing surface comes in contact with the filter-
seating surface.
10. At this time, further tighten the cartridge filter 3/4 turns
using a filter wrench. Take care not to excessively tighten
the cartridge filter. Be careful not to damage filter
cartridge by overtightening.
11. Refill the specified amount of oil through transmission
oil filler port (7).
Oil amount : 30 liters (7.9 gallons)
12. Start the engine and keep it running for two minutes.
13. Check that the oil level is within the specified range in oil
level gauge (8). If necessary, add oil.
f
NOTE: Never reuse cartridge type element (6).
Install the cartridge with care so that the O-ring is not
damaged due to twisting.
Check for any oil leakage at the drain plug and the filter
mounting area.
MAINTENANCE
6
7-43
7
MNEC-07-014
8