Clean Suction Filter - Hitachi ZW140-6 Operator's Manual

Clean Suction Filter

--- each time the hydraulic oil is changed.
Two suction filters are located on the bottom of the hydraulic
oil tank.
Clean the suction filters when changing hydraulic oil.
1. After draining hydraulic oil, remove covers (2). Pull down
to take out suction filters (3). Put a cover over the oil
supply port to prevent foreign matter from entering.
Slowly take out filters (3) not to drop the trapped dust.
2. Clean suction filters (3) and the hydraulic oil tank inside
with cleaning oil.
3. Securely insert the suction filter into pipe (5) when
installing the suction filter.
4. Before installing covers (2), check that bolts (4) of the
end of suction filter (3) are securely tightened. Then,
install covers (2) with bolts.
Tightening torque: 50 N·m (5.0 kgf·m) (37 lbf·ft)
5. Supply the specified volume of oil through oil supply
port (1) while checking the oil level with oil gauge (6).
6. Start the engine. While slowly raising or lowering the
arm and tilting the bucket forward and backward, check
for any abnormality. Stop the engine. Check the oil level
using level gauge (6).
MAINTENANCE
1
7-50
2
4
MNDF-07-010
MNDF-07-011
5
3
M4FC-07-029
6
M4FC-07-026