HYDRAULIC SYSTEM
M6060, M7060, WSM
7-S25
[4] CONTROL VALVE
Removing Control Valve
1. Remove the E-shaped stopper (2).
2. Remove the control valve mounting screws.
3. Remove the control valve (1).
• Do not disassemble the spool joint 1 (5) from the spool (7)
unless necessary.
If disassembled due to unavoidable reasons, record the
installation length (L1) between the spool joint 3 and spring
retainer. (as shown figure.)
When reassembling, be sure to make a former length.
• Do not loosen the adjusting screw (8) unless necessary.
(When reassembling)
• Be sure to fit the O-rings (10).
Adjusting Spool Joint
1. Set the length L1 to the reference value or recorded value.
2. Set the length L2 to the factory specification (neutral state), with
operate the draft feedback lever (4) and position link lever (3).
3. Check the gap (G) between the lowering poppet and adjusting
screw (8).
4. If the gap (G) is not within the reference valve, recheck the
length (L2) at the neutral state of spool.
If necessary to adjust the gap (G), loosen the lock nut (9) and
adjust by the adjusting screw (8).
9Y1210828HYS0041US0
Plug and Unload Valve
1. Secure the control valve with a vise.
2. Remove the seat plug 1 (1) for unload poppet 1 (3).
3. Draw out the spring (2) for unload poppet 1 (3).
4. Remove the seat plug 2 (4) for unload poppet 2 (6).
5. Draw out the spring (5) and unload poppet 2 (6).
(When reassembling)
• Install the plug, noting O-ring.
9Y1210828HYS0042US0
Length (L1) Factory specification
24.5 to 25.0 mm
0.965 to 0.984 in.
Length (L2) Factory specification
66.3 to 66.7 mm
2.61 to 2.62 in.
Gap (G) Reference Value
0.2 to 0.3 mm
0.008 to 0.01 in.
(1) Control Valve
(2) E-shaped Stopper
(3) Position Link Lever
(4) Draft Link Lever
(5) Spool joint
(6) Lock Nut
(7) Spool
(8) Adjusting Screw
(9) Lock Nut
(10) O-ring
G: Gap
(1) Seat Plug 1
(2) Spring
(3) Unload Poppet 1
(4) Seat Plug 2
(5) Spring
(6) Unload Poppet 2
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