8-M3
MX5100, WSM
HYDRAULIC SYSTEM
3. HYDRAULIC CIRCUIT FOR THREE POINT HYDRAULIC
SYSTEM
W1012963
■ Hydraulic Oil Flow
1. When the engine (3) is started, the hydraulic pump (4) is rotated to draw oil from the 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 (4) to the front hydraulic block (6). When a front end loaders is
equipped with the tractor, oil pressure is taken from the front hydraulic block (6), and the return oil from the front
end loader flows back to this front hydraulic block (6), then into the position control valve (7) through the delivery
pipe.
3. The position control valve (7) switches the oil to the hydraulic cylinder (9) for the three-point hydraulic system or
return to the oil tank (transmission case) (1).
• The hydraulic system has a relief valve (5) which restricts the maximum pressure in the circuit. The hydraulic
system has a cylinder safety valve which relieves shock pressure in the hydraulic cylinder.
• When hydraulic power is taken out to use a hydraulically-operated implement, implement’s cylinders can be
actuated by operating the double-acting auxiliary control valve (12).
(1) Oil Tank
(Transmission Case)
(2) Hydraulic Oil Filter Cartridge
(3) Engine
(4) 3-Point System Hydraulic
Pump
(5) Relief Valve
(6) Front Hydraulic Block
(7) Position Control Valve
(8) Cylinder Safety Valve
(9) Hydraulic Cylinder
(10) Lowering Speed Adjusting
Valve
(11) Hydraulic Cylinder Block
(12) Auxiliary Control Valve
A : To PTO Clutch and Power
Steering
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