M6040, M7040, WSM
3. THREE POINT HITCH HYDRAULIC SYSTEM
[1] HYDRAULIC CIRCUIT
1. When the engine is started, the hydraulic pump (11) is rotated to draw oil from transmission case (10) through the
suction pipe.
Supplied oil is filtered by the hydraulic oil filter cartridge (9).
2. Filtered oil is forced out by the hydraulic pump to the auxiliary control valve (1) through the hydraulic outlet (13).
3. With the auxiliary control valve (1) in neutral position, oil is channeled from "N" port to the control valve (3) through
the flow priority valve (2).
4. The hydraulic system has a relief valve (7) which restricts the maximum pressure in the circuit.
The hydraulic cylinders (6) have a cylinder safety valve (5) to relieve shock pressure due to heavy implement
bounce.
5. The control valve (3) is actuated by the mechanical linkage for "Position control" or "Draft control" or both "Mix
control" (combining position control with draft control).
8-M6
HYDRAULIC SYSTEM
(1) Auxiliary Control Valve
(2) Flow Priority Valve
(3) Control Valve
(4) Lowering Speed Adjusting
Valve
(5) Cylinder Safety Valve
(6) Hydraulic Cylinder (Exterior)
(7) Relief Valve
(8) Hydraulic Pump
(for Power Steering)
(9) Hydraulic Oil Filter Cartridge
(10) Oil Tank
(Transmission Case)
(11) Hydraulic Pump (for 3-point)
(12) Trailer Brake (Option)
(13) Hydraulic Outlet
(a) To Power Steering
Controller
A:
To Implement Cylinder
B:
To Implement Cylinder
N:
N Port
9Y1210143HYM0005US0
KiSC issued 07, 2012 A