Hitachi ZW 180-6, Operator'S Manual

Page: 342 / 426

MAINTENANCE
7-70
Replace Fuel Pre-Filter Element
---every 500 hours
d
CAUTION: Depending on the circumstance, diesel
fuel is flammable. When inspecting or performing
service or repairs on the fuel system, to reduce the
possibility of fire and resulting severe personal
injury, death, or property damage, never smoke or
allow sparks or flames (such as pilot lights, electrical
switches, or welding equipment) in the work area.
IMPORTANT:

Be sure to use only genuine Hitachi elements for the
fuel main filter element and the pre-filter element.
Failure to do so may lower engine performance and/
or shorten the engine service life.

Make sure that debris, water, steam, or cleaning
solution does not get inside the fuel system.
1. Remove cartridge filter (1) by using a filter wrench.
Arrange a container to receive fuel for safety and to
prevent ground from contamination.
2. Apply a thin film of clean fuel to the gasket of new
cartridge filter element (2).
3. Turn cartridge filter element (2) clockwise by hand until
the gasket touches the contact area.
4. Using the filter wrench, tighten the cartridge 1/4 to 1/2
turn more.
Be careful not to overly tighten cartridge filter (1).
Deformation of the cartridge may result.
5. Bleed Air from the Fuel System
After replacing the fuel pre-filter, bleed air from the fuel
system.
(Refer to "Bleed Air from the Fuel System" in item .)
M4GB-07-066
2
1
MNEK-07-006