Kubota M9540, Workshop Manual

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8-S29
M8540, M9540, WSM HYDRAULIC SYSTEM
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.
W1020079
Spool and Poppet Valve
1. Remove the lock nut (8) for spool (6).
2. Draw out the spool (6).
3. Remove the seat plug (5) for poppet valve (2).
4. Draw out the spring (4), collar (3) and poppet valve (2).
IMPORTANT
Q
• Do not change the adjuster (1) adjustment.
(When reassembling)
• Install the poppet valve, noting O-ring and backup ring.
W1020366
Check Valve
1. Remove the seat plug (3).
2. Draw out the spring (2) and check valve (1).
(When reassembling)
• Install the plug, noting O-ring.
W1020605
Tightening torque
Seat plug 1
39.2 to 58.8 N·m
4.0 to 6.0 kgf·m
28.9 to 43.4 lbf·ft
Seat plug 2
39.2 to 58.8 N·m
4.0 to 6.0 kgf·m
28.9 to 43.4 lbf·ft
(1) Seat Plug 1
(2) Spring
(3) Unload Poppet 1 (4) Seat Plug 2
(5) Spring
(6) Unload Poppet 2
Tightening torque
Seat plug
39.2 to 58.8 N·m
4.0 to 6.0 kgf·m
28.9 to 43.4 lbf·ft
Lock nut
15.7 to 19.6 N·m
1.6 to 2.0 kgf·m
11.6 to 14.5 lbf·ft
(1) Adjuster
(2) Poppet Valve
(3) Collar
(4) Spring (5) Seat Plug
(6) Spool
(7) Spring
(8) Lock Nut
Tightening torque Seat plug
29.4 to 49.0 N·m
3.0 to 5.0 kgf·m
21.7 to 36.2 lbf·ft
(1) Check Valve
(2) Spring (3) Seat Plug
KiSC issued 09, 2008 A