Kubota WSM STa-30, Workshop Manual

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3-S19
ST
α
-30 · ST
α
-35, WSM TRANSMISSION
Neutral Valve
1. Remove the neutral valve assembly (6), (7) from the port block
(8).
2. Take out the spring holder (1), spring (2) and poppet N (3) after
tapping out the spring pin (5).
(When reassembling)
• Apply transmission oil to the O-rings.
NOTE
■
• Neutral valves for forward and reverse are not
interchangeable.
• It is indicated “F” on top of forward neutral valve and “R” for
reverse neutral valve.
W1019616
Check and High-Pressure Relief Valve
1. Take out the check spring (4) and the relief valve assembly (3)
after removing the plug (5).
(When reassembling)
• Apply transmission oil to the O-rings and relief valve assembly
(3).
NOTE
■
• It is impossible to disassemble relief valve assembly.
• The check and high-pressure relief valve for forward and for
reverse are interchangeable.
W1019931
Port Block and Charge Relief Valve
1. Separate the port block (1) after removing the mounting screws.
2. Remove the spring (2) and poppet L (3).
(When reassembling)
• Tighten the port block (1) mounting screws diagonally.
• Be sure to fix the O-ring (4).
• Apply transmission oil to the O-ring and poppet L.
W1020103
(1) Spring Holder
(2) Spring
(3) Poppet N
(4) Valve Body (5) Spring Pin
(6) Neutral Valve Assembly (Reverse)
(7) Neutral Valve Assembly (Forward)
(8) Port Block
Tightening torque
Check and high-pressure
relief valve plug
58.8 to 68.6 N·m
6.0 to 7.0 kgf·m
43.4 to 50.6 ft-lbs
(1) Check and High-Pressure Relief
Valve for Forward
(2) Check and High-Pressure Relief
Valve for Reverse
(3) Relief Valve Assembly
(4) Check Spring
(5) Plug
Tightening torque Port block mounting screw
39.3 to 44.1 N·m
4.0 to 4.5 kgf·m
29.0 to 32.5 ft-lbs
(1) Port Block
(2) Spring (3) Poppet L
(4) O-ring
KiSC issued 11, 2006 A