Hydraulic Oil Flow - wsm STW37 Workshop Manual

STW34, STW37, STW40, WSM

(3) Hydraulic Oil Flow

The oil from the hydraulic pump (3) is adjusted with the regulator valve (4) to the pressure of 18.5 kgf/cm
enters the bi-speed valve (7). When the solenoid valve (10) opens by the bi-speed controller, pressurized oil enters
the hydraulic clutch (8) through the orifice valve (9).
Hydraulic Clutch (Bi-speed)
When the pressurized oil enter to the hydraulic
clutch, the piston (3) moves to the right in the figure and
presses clutch disc and plate (4). Then the power is
transmitted to the 32T gear (5).
When oil runs away, the piston (3) and shifter (2)
moves to the left in the figure by the spring force. Then
the power is transmitted to the 27T gear (1).
(1) 27T Gear
(2) Shifter
(3) Piston
3-M14
TRANSMISSION
(4) Clutch Disc and Plate
(5) 32T Gear
9Y1211109TRM0023US0
(1) Transmission Case
(2) Oil Filter
(3) Hydraulic Pump
(Power Steering)
(4) Regulator Valve
(5) Pressure Reducing Valve
(6) Regulating Valve
(7) Bi-speed Valve
(8) Hydraulic Clutch
(for Bi-speed)
(9) Orifice Valve
(10) Solenoid Valve
(for Bi-speed)
a: To Steering Controller
b: From Oil Cooler
c: To 3P Hydraulic System
2
, and
9Y1211109TRM0024US0
KiSC issued 11, 2014 A