Replace Engine Oil Filter - Hitachi ZW 550-6 Operator's Manual

Replace Engine Oil Filter

--- every 500 hours (each time when engine oil is
changed)
d
WARNING: Immediately after the machine has
been operated, all engine parts are hot. Wait for
the engine to cool before starting any maintenance
work. Failure to do so may cause severe burns.
1. Park the machine following the same procedures as
described on page 7-6 for preparation of inspection/
maintenance work.
IMPORTANT:
 When replacing oil filters (1), make sure to replace
both of them at the same time.
 When installing the oil filter, make sure that the
gasket is not caught at the rim. This could cause
oil leakage.
 Any dirt on the cock or plug must be wiped off
before installing it.
 Do not perform abrupt engine idling, which may
cause an engine failure.
 After replacement, run the engine and confirm
that there is no oil leakage from the area around
the filter.
2. Clean around the oil filler cap so that foreign matter
does not enter. Remove the oil filler cap.
3. Place a container of approx. 60 L (16 gallons) capacity
under the oil pan and drain plug (2) to receive the
drain oil.
4. Remove oil pan drain plug (2) to drain the oil.
Retighten the plug.
f
NOTE: After all oil has been drained, inspect the cloth for
any debris such as small pieces of metal.
MAINTENANCE
7-28
1
2
115Z7B-7-27-2
115Z7B-7-28-3