Installation Instructions

81700·82100'82400 WSM,11770 8 HYDRAULIC SYSTEM
Lowering Speed Adjusting Valve
1. Remove the lowering speed adjusting valve body (2) with the
lowering speed adjusting shaft (1).
2. Draw out the poppet (3) and spring (4).
(When reassembling)
.. Take care not to damage the O-rings.
(1) Lowering Speed Adjusting Shaft
(2) Lowering Speed Adjusting Valve 80dy
(3) Poppet
(4) Spring
8177P242
Relief Valve
1. Remove the plug (1), and draw out the shim (2), spring (3),
poppet
(4) and the valve seat (5).
(When reassembling)
.. Take care not to damage the O-ring.
49.0 to 68.6 N'm
Tightening
torque Relief valve plug
5.0to 7.0 kgf'm
36.2 to 50.6 ft-Ibs
II IMPORTANT
• After disassembling and assembling the relief valve, be sure
to adjust the relief valve setting pressure.
II IMPORTANT
• Measure the distance (A) between valve body and lever
before disassembling.
(4) Poppet
(5) Valve Seat
(3)
Snap Ring
(4) Nuts
(1) Lever
(2) Spool
(1) Plug
(2) Shim
(3) Spring
(3) Disassembling Position Control Valve
Spool
1. Remove the nuts (4) and snap ri ng (3).
2. Draw out the spool (2) with the lever (1).
8177F817 0
8-S 11