wsm M7040 - Safety Valve; Lift Arm and Lift Arm Shaft

HYDRAULIC SYSTEM
M6040, M7040, WSM
8-S30
[7] SAFETY VALVE
Disassembling Safety Valve
1. Remove the safety valve assembly (1).
2. Secure the safety valve assembly in a vise.
3. Loosen the lock nut (3), and remove the adjust screw (2).
4. Draw out the spring (4), seat (5) and ball (6).
(When reassembling)
• Install the safety valve to the hydraulic cylinder block, taking
care not to damage the O-ring.
9Y1210143HYS0036US0
[8] LIFT ARM AND LIFT ARM SHAFT
Disassembling Lift Arm and Lift Arm Shaft
1. Remove the external circlip (6).
2. Remove the lift arm L.H. (1).
3. Draw out the lift arm shaft (3) and lift arm R.H. (2) 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 lift bushings of lift arm support and
O-rings.
• Take care not to damage the O-rings.
9Y1210143HYS0037US0
Tightening torque
Safety valve assembly
39.2 to 49.0 N·m
4.0 to 5.0 kgf·m
28.9 to 36.2 lbf·ft
Safety valve lock nut
58.8 to 78.5 N·m
6.0 to 8.0 kgf·m
43.4 to 57.9 lbf·ft
(1) Safety Valve Assembly
(2) Adjust Screw
(3) Lock Nut
(4) Spring
(5) Seat
(6) Ball
(7) Housing
(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
KiSC issued 07, 2012 A