Replace Fuel Pre-Filter Element - Hitachi ZW 120-6 Operator's Manual

Replace Fuel Pre-Filter Element

---every 3000 hours
IMPORTANT:
 Be sure to use only genuine Hitachi elements for
the main fuel filter and the pre-filter. Failure to do
so may deteriorate the engine performance and/
or shorten the engine service life. Please be noted
that all engine failures caused by using other
manufacturers' elements are excluded from Hitachi
Warranty Policy.
 Take care not to allow dirt and/or water to enter the
fuel filter.
Procedures
1. Park the machine following the same procedures as
described on page 7-7 for preparation of inspection/
maintenance work.
2. Remove cartridge filter (1) with a filter wrench.
Be sure to retain fuel with a container to ensure safety
and to protect the ground against contamination.
3. Coat fuel to the gasket surface on new cartridge filter
element (2).
4. Install cartridge filter element (2) to fuel filter (1) by
lightly turning the element by hand until the seal surface
makes contact with the gasket.
5. Tighten the cartridge filter element more approx. 3/4
turns using the filter wrench.
Take care not to overly tighten the cartridge filter
element. Deformation of cartridge filter (1) may result.
6. Bleed Air from the Fuel System
After replacing the fuel filter element, bleed air from the
fuel supply system.
(Refer to "Bleed Air from the Fuel System" in item
MAINTENANCE
2
.)
7-62
1
MNSC-07-007
M4GB-07-066