Hydraulic Circuit - wsm M108S Workshop Manual

M108S, WSM

[1] HYDRAULIC CIRCUIT

1. When the engine is started, the hydraulic pump (3) is rotated to suck oil from transmission case (1) through the
suction pipe.
Supplied oil is filtered by the hydraulic oil filter cartridge (2).
2. Filtered oil is forced out by the hydraulic pump to the auxiliary control valve (4).
3. With the auxiliary control valve (4) in neutral position, oil is channeled from "N" port to the control valve (5).
4. The hydraulic system has a relief valve (6) which restricts the maximum pressure in the circuit.
The hydraulic cylinder (8) has a cylinder safety valve (9) to relieve shock pressure due to heavy implement bounce.
5. The control valve (5) is actuated by the mechanical linkage for "Position control" or "Draft control" or both "Mix
control" (combining position control with draft control).
6. Tractor has a single / double acting auxiliary control valve (4) as standard equipment.
8-M4
HYDRAULIC SYSTEM
(1) Oil Tank (Transmission
Case)
(2) Hydraulic Oil Filter Cartridge
(3) Hydraulic Pump
(4) Auxiliary Control Valve
(5) Control Valve
(6) Relief Valve
(7) Lowering Speed Adjusting
Valve
(8) Hydraulic Cylinder
(9) Cylinder Safety Valve
(10) Hydraulic Pump (for Power
Steering)
(a) To Regulator Valve
N : N Port
W1019991
KiSC issued 05, 2012 A