Power Steering Hydraulic Circuit - Kubota M6800S Workshop Manual

M6800 · M6800S · M8200 · M9000, WSM

2. POWER STEERING HYDRAULIC CIRCUIT

(1) Hydraulic Pump
(2) Steering Controller
Hydraulic Oil Flow
When the engine starts, the hydraulic pump (1) of the power steering system pressure-feeds the oil drawn from the
transmission case through the suction pipe.
The oil which has entered steering controller (2) is directed to control valve (6).
As the steering wheel is turned, control valve (6) operates and the oil passes through gerotor (4) and into steering
cylinder (3). The cylinder rod then moves to control the directional movement of the front wheels.
Return oil from steering cylinder (3) passes through control valve (6) is sent to the PTO clutch valve.
When the engine is not operating, and the steering wheel is turned, gerotor (4) rotates to supply oil to steering
cylinder (3). Thus the machine can be steered manually.
(3) Steering Cylinder
(4) Gerotor
(5) Check Valve
7-M2
STEERING
(6) Control Valve
KiSC issued 03, 2008 A