Hitachi ZAXIS 120-6 class Operator's Manual page 379

2. Place 1 liter or larger capacity container under the drain
hose.
3. Rotate the bottom of filter element (2) counterclockwise
by using a spanner to remove filter element (2) from
head cover (3).
4. Apply a thin layer of fuel to the cartridge gasket (O-ring).
5. Install new filter element (2) on head cover (3) while
rotating filter element (2) clockwise. Tightening torque:
25±2 N·m (2.5±0.2 kgf·m)
6. Open cock (1) on the bottom of the fuel tank.
7. Bleed Air from the Fuel System
After replacing fuel filter element (2), bleed air from the
fuel supply system.
(Refer to " Bleed Air from the Fuel System".)
Wrench size: 24 mm
MAINTENANCE
7-85
Main Filter
MDC1-07-046
3
2
MDC1-07-047
1
MDAA-07-007
Open Position