Steering
9803/3280 Issue 1
Steer Unit Operation
- 4 Wheel Steer Machines
4 Wheel Steer Mode
- Right Turn
The illustration shows the flow through the steering
unit in a right hand turn condition. The operation is
identical to that described for a left hand turn,
except that the oil is diverted by spool A to the
other side of stator D and power track rod rams 40
and 41.
Component Key:
A Inner Spool
B Outer Spool
D Stator
LS Load Sensing Port
X Steer Mode Control Valve
40 Front Power Track Rod Ram
41 Rear Power Track Rod Ram
43B Relief Valve
43C Non-Return Valve
4 - 6 4 - 6
Circuit Descriptions
Section H Section H
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