TRANSMISSION
STW34, STW37, STW40, WSM
3-M16
3. POWER TRAIN FOR PTO SYSTEM
[1] INDEPENDENT PTO SYSTEM
(1) Hydraulic Oil Flow
This tractor is equipped with the independent PTO system. The hydraulic circuit is as shown above.
The oil from the hydraulic pump (3) is adjusted with the regulator valve (4) to the pressure of 18.5 kgf/cm
2
, and
enters the bi-speed valve (7). The solenoid valve (10), which is built in the bi-speed valve (7) and operated by the
PTO clutch control switch, opens and shuts the oil circuit to the hydraulic clutch (8).
9Y1211109TRM0027US0
(1) Transmission Case
(2) Oil Filter
(3) Hydraulic Pump (for Power
Steering)
(4) Regulator Valve
(5) Pressure Reducing Valve
(6) Regulating Valve
(7) Bi-speed Valve
(8) Hydraulic Clutch (for PTO)
(9) Accumulator
(10) Solenoid Valve (for PTO)
a: To Steering Controller
b: From Oil Cooler
c: To 3P Hydraulic System
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