TRANSMISSION
L3560, L4060, L4760, L5060, L5460, L6060, WSM
3-M24
(3) Function of Components
[A] Servomechanism
The servomechanism is mainly comprised of the servo piston and proportional valve.
Signals from the HST pedal flow to the ECU and transmit from the ECU to the proportional valve.
The servo piston is controlled by oil from the proportional valve.
Refer to Workshop Manual of "TRACTOR MECHANISM" (Code No. 9Y021-18200) for the operation of the
servomechanism, that is, the operation of servo piston.
Valves
Check and high pressure relief. As for the mechanism and function of valve, charge relief valve and case relief
valve, Refer to Workshop Manual of "TRACTOR MECHANISM" (Code No. 9Y021-18200).
9Y1210824TRM0031US0
(1) Servo Piston
(2) Feedback Rod (Connected to
Swashplate Position Sensor)
(3) Swashplate Position Sensor
(4) Swashplate
(5) Piston Adjusting Screw
(6) Spring
(7) Proportional Valve (Forward)
(8) Proportional Valve (Reverse)
A: To Reverse Side
B: To Forward Side
a: Slit for Connection of
Swashplate
P: Pump Port
T: Tank Port
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