STEERING
L3301, L3901, L4701, WSM
7-M6
[2] HYDRAULIC CIRCUIT
When the engine starts, the hydraulic pump (8)
pressurize oil from transmission case (7) through oil filter
(6) and send the oil, to the steering controller (3).
The oil which has entered steering controller (3) is
directed to control valve (10).
When the steering wheel is turned, control valve (10)
operates and send oil through gerotor (1) to steering
cylinder (2). The cylinder rod of steering cylinder (2)
moves the direction of front wheels.
Return oil from steering cylinder (2) passes through
control valve (10) and is sent to the PTO clutch valve.
When the engine is not operating, and the steering
wheel is turned, gerotor (1) rotates to supply oil to
steering cylinder (2). Thus the direction of front wheel
can be controlled manually.
9Y1211012STM0010US0
[3] HYDRAULIC PUMP
The gear type hydraulic pump is adopted for these
models. This pump is called as tandem type and
composed two pair of gears, side plates, bushings and
other components as shown in the figure.
The hydraulic pump pressurize oil from transmission
case through oil filter and send the oil to power steering
circuit and main hydraulic circuit.
9Y1211012STM0011US0
(1) Gerotor
(2) Steering Cylinder
(3) Steering Controller
(4) Relief Valve
(5) Check Valve
(6) Oil Filter
(7) Transmission Case
(8) Hydraulic Pump
(9) Steering Wheel
(10) Control Valve
A: To Three Point Hydraulic
System and Others
B: To PTO Clutch Valve
(1) Drive Gear 1
(2) Coupling
(3) Drive Gear 2
(4) Driven Gear 1
(5) Bushing
(6) Bushing
(7) Driven Gear 2
(8) Side Plate
A: From Power Steering
Controller
B: From Transmission Case
C: To Power Steering
Controller
D: To Main Hydraulic Circuit
To Next Page
Loading...
Need help?
General
