Replace Hydraulic Tank Oil Filter - KCM 70Z7 Operation & Maintenance Manual

Replace Hydraulic Tank Oil Filter

--- every 1000 hours
WARNING: Hydraulic oil becomes hot during
operation. Severe burns may result if skin comes in
contact with hot hydraulic oil. Wait for the oil to cool
before starting any maintenance work.
Especially when removing the filter, be careful that the
remaining oil in the filter does not spill.
Replacement Procedures
1. Park the machine following the same procedures as
described on page 7-7 for preparation of inspection/
maintenance work.
2. Install articulation lock bar to the front and rear of the
chassis by following the procedures described on page
7-9.
3. Clean the vicinity around cover plate (1).
4. Get a container and workshop towels to hold the spilled
oil and the element. Relieve the air pressure from the
hydraulic oil tank by pressing air bleed valve (8).
5. Loosen bolts (2) (6 used) to remove cover (1) and O-ring
(3). When removing cover (1), slowly remove the cover
while pressing the cover downward so that spring (4)
does not fly off. Slowly permit cover to rise, then carefully
remove.
6. Remove spring (4), valve (5) and element (6).
7. Replace element (6) and O-ring (3) with new ones. Install
new element and new O-ring in the hydraulic oil tank.
Before installing element (6), make sure that rubber (7) is
present.
8. Install cover (1) with bolts (2) (6 used).
Tightening torque: 49.9 N·m (5.1 kgf·m, 37 lbf·ft)
MAINTENANCE
2
7-49
1
1
8
M4GB-07-044
2
3
4
5
6
M4GB-07-051
3
4
5
6
7
M4GB-07-052