HYDRAULIC SYSTEM
M8540Narrow, M9540Narrow, WSM
N8-S23
[6] LIFT ARM AND LIFT ARM SHAFT
Disassembling Lift Arm and Lift Arm Shaft
1. Remove the external circlip (6).
2. Remove the lift arm R.H. (2).
3. Draw out the lift arm shaft (3) and lift arm L.H. (1) as a unit.
4. Remove the collar (5) and O-rings (4).
(When reassembling)
• Align the alignment marks (7) of the lift arm shaft and lift arms.
• Apply grease to the right and left bushings of lift arm support and
O-rings.
• Take care not to damage the O-rings.
9Y1210236HYS0028US0
[7] LOWERING SPEED ADJUSTING VALVE
Disassembling Lowering Speed Adjusting Valve
1. Remove the plate (1).
2. Tap out the roll pin (2) using a vice grip pliers.
3. Remove the lowering speed adjusting valve assembly (3).
(When reassembling)
• Check the lowering speed adjusting valve turns smoothly.
9Y1210236HYS0029US0
(1) Lift Arm L.H.
(2) Lift Arm R.H.
(3) Lift Arm Shaft
(4) O-ring
(5) Collar
(6) External Circlip
(7) Alignment Mark
Tightening torque
Lowering speed adjusting
valve assembly
34.3 to 39.2 N·m
3.5 to 4.0 kgf·m
25.3 to 28.9 lbf·ft
(1) Plate
(2) Roll Pin
(3) Lowering Speed Adjusting Valve
Assembly
(4) Valve
(5) Pin