Hitachi ZAXIS 120-6 class Operator's Manual page 381

2. Place 1 liter or larger capacity container under drain hose
(3).
3. Loosen air bleed plug (1) and drain plug (2). Drain fuel
until fuel does not flow out of the filter.
After draining fuel, remove drain plug (2) and replace
O-ring..
4. Remove the harness connected to sensor (7).
IMPORTANT: The harness connector has a lock (8). Press
lock (8) and disconnect the connector. If an attempt is
made to disconnect the connector without releasing
lock (8), it may damage the connector.
5. Remove transparent filter case (4) using the exclusive
tool.
6. When transparent filter case (4) is removed, the O-ring
for transparent filter case (4) is exposed. Remove the
element by hand.
7. Remove filter cartridge (6) by using a band wrench.
8. Install new cartridge (6). When the upper gasket of
cartridge (6) contacts to the head, further tighten
cartridge (6) for 3/4 turns by hand.
9. Replace O-ring with new one and tighten transparent
filter case (4) to 10 +/- 1 N·m using the special tool.
10. Tighten air bleed plug (1) and drain plug (2).
11. Reconnect the harness that was disconnected from
sensor (7).
IMPORTANT: Fit the parts together until lock (8) of the
harness connector is locked in place.
12. Open cock (5) on the bottom of the fuel tank.
13. Bleed Air from Fuel System
After replacing the fuel filter element, bleed air from the
fuel supply system.
(Refer to " Bleed Air from the Hydraulic System".)
Wrench size: 14 mm
MAINTENANCE
7-87
1
2
3
5
Open Position
6
4
7
MDC1-07-092
MDAA-07-007
8
MDAK-07-057