Point Hydraulic System; Hydraulic Circuit - wsm STW37 Workshop Manual

STW34, STW37, STW40, WSM

6. 3-POINT HYDRAULIC SYSTEM

[1] HYDRAULIC CIRCUIT

(1) Auxiliary Control Valve
(2) Hydraulic Cylinder
(3) Lowering Speed Adjusting
Valve
1. When the engine (9) is started, the hydraulic pump (8) is rotated to draw oil from the transmission case (6) trough
the suction pipe. Supplied oil is filtered by the oil filter (7).
2. Filtered oil is forced out by the hydraulic pump to auxiliary control valve (1) then flow to the position control valve
(5).
3. The position control valve (5) switches the oil flow, and oil is channeled to the hydraulic cylinder (4) for the 3-point
hydraulic system or returned to the oil tank (6).
4. The hydraulic system has a relief valve (11) which restricts the maximum pressure in the circuit.
(4) Hydraulic Piston
(5) Position Control Valve
(6) Oil Tank (Transmission Case)
(7) Oil Filter
(8) Hydraulic Pump (3P)
(9) Engine
(10) Hydraulic Block Type Outlet
(11) Relief Valve
8-M10
HYDRAULIC SYSTEM
a: To Hydraulic Pump
(Power Steering)
9Y1211109HYM0009US0
KiSC issued 11, 2014 A