Kubota WSM F3680 User Manual

2-S22
F2880, F3680, RCK72-F36, RCK72R-F36, RCK60-F36, RCK60R-F36, WSM
TRANSMISSION
[3] DISASSEMBLING AND ASSEMBLING
(1) Hydrostatic Transmission
Gears
1. Remove the ball bearing (4) and 28T gear (5).
2. Remove the external snap ring (3) and 30T gear (2).
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Center Section
1. Remove the center section mounting hex. socket head screws.
2. Separate the center section (2) from HST housing.
(When reassembling)
• Cover the splines of each shaft with thin tape to protect sealing
lip.
• Apply grease to the oil seals for the pump and motor shaft.
• Place a new gasket on the housing.
• Install center section with valve plates in place.
IMPORTANT
■
• Valve plates (1), (3) may stick to the center section but they
are not fixed. Take care not to drop them.
• Be sure to tighten the hex. socket head screws to the
specified torque.
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Check and High Pressure Relief Valve
1. Remove the valve plug (1), and remove the check valve spring
(2) and relief valve assembly (3).
(When reassembling)
• Take care not to damage the O-ring on the plug.
W1034707
Motor Cylinder Block and Pump Cylinder Block
1. Pull out the output shaft (4) and motor cylinder block (3) with
pistons as a unit.
2. Slide out the pump cylinder block (2) with pistons.
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(1) Center Section
(2) 30T Gear
(3) External Snap Ring
(4) Ball Bearing
(5) 28T Gear
Tightening torque
Center section hex. socket
screw
49.0 to 58.8 N·m
5.0 to 6.0 kgf·m
36.2 to 43.4 ft-lbs
(1) Valve Plate of Pump
(2) Center Section
(3) Valve Plate of Motor
Tightening torque Valve plug
58.8 to 98.1 N·m
6.0 to 10.0 kgf·m
43.4 to 72.3 ft-lbs
(1) Valve Plug
(2) Check Valve Spring
(3) Check and High Pressure Relief
Valve Assembly
(1) Input Shaft
(2) Pump Cylinder Block
(3) Motor Cylinder Block
(4) Output Shaft
KiSC issued 04, 2006 A

Kubota WSM F3680 Specifications

General

Brand	Kubota
Model	WSM F3680
Category	Lawn Mower
Language	English