Replace Fuel Pre-Filter Element - Hitachi Zaxis 850LC-3 Operator's Manual

4 REPLACE FUEL PRE-FILTER ELEMENT

--- every 500 hours
IMPORTANT: Be sure to use only genuine Hitachi elements
for the main fuel cartridge and the pre-
cartridge. 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 manu-
facturers' elements are excluded from Hita-
chi Warranty Policy.
Procedures:
1. Close cock (5) on the bottom of the fuel tank.
2. Place a 1-liter (1 US qt) or larger capacity container under
drain plug (1).
3. Loosen air bleed plug (4) and drain plug (1). Drain fuel
until fuel does not flow out of the filter.
4. Remove transparent filter case (8) using an exclusive tool.
5. When transparent filter case (8) is removed, the element
is exposed. Remove the element by hand.
6. Install a new element. Tighten transparent filter case (8)
to 30 ± 2 N•m (3±0.2 kgf•m, 22±1.4 lbf•ft) using the exclu-
sive tool.
7. Tighten air bleed plug (4) and drain plug (1).
8. Open cock (5) on the bottom of the fuel tank.
9. Bleed air from the fuel supply system.
After replacing the fuel filter element, bleed air from the
fuel supply system. (Refer to the air bleed procedures de-
scribed on page 7-49.)
Wrench size: 14 mm
MAINTENANCE
5
Full Pre-Filter
7-53
M1J1-07-054
M1JB-07-040
4
M1U1-07-004
8
1
M1U1-07-005