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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
Cir
c
uit
D
e
sc
rip
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S
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n H
S
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n H