Installation Instructions

8 HYDRAU Lie SYSTEM
81700·82100'82400 WSM,11770
(3) O-ring
(4) Feedback Rod
(5) Alignment Marks
(6) Alignment Marks
(1) Lift Arm LH
(2) Lift Arm RH
(3) Hydraulic Arm Shaft
Lift Arm, Hydraulic Arm Shaft and Hydraulic Arm
1. Remove the position control feedback rod (4).
2. Remove the external snap ring, and remove the lift arm LH
(1).
3. Draw out the hydraulic arm shaft (3) and lift arm RH (2) as a
unit.
(When reassembling)
o Align the alignment marks (5) of the hydraulic arm and
hydraulic arm shaft.
o Align the alignment marks (6) of the lift arm LH and
hydraulic arm shaft.
o Apply grease to the right and left bushi ngs and O-ri ngs.
o Take care not to damage the O-rings.
(1) Position Control Valve
Position control valve
23.6
to 27.4 N'm
Tightening torque
mounting screws
2.4
to 2.8 kgf·m
17.4
to 20.2 ft-Ibs
(1) Hydraulic Piston
(2) 8ackup Ring
Hydraulic Piston
1. Inject the compressed air into the hydraulic cylinder, and
take out the hydraulic piston (1).
(When reassembling)
o Take care not to damage the O-ring and backup ring.
o Apply transmission fluid to the O-ring.
.. Replace the O-ring if it is defective, worn or scratched, which
may case oil leakage.
(2) Disassembling Hydraulic Cylinder Assembly
Position Control Valve
1. Remove the position control valve mounting screws, and
remove the position control valve(l).
(When reassembling)
o Take care not to damage the O-rings.
8177P238
8-510