Power Steering Schematics
When the steering wheel is turned to the right (Fig. 3),
the control valve within the steering valve shifts to close
the “AUX” port. This directs oil supplied by the steering
pump to the metering section of the steering valve. As
the steering wheel is turned, system oil is metered out
port “RT” to the steering cylinder. Oil displaced by the
other end of the steering cylinder returns to the steering
valve through port “LT” and is directed out port “OUT”
back to reservoir.
When the steering w
heel is stationary, the control valve
within the steering valve shifts back to neutral (Fig. 4),
allowing system oil to flow through the steering valve
and out the “AUX” port back to reservoir. Oil in the rest
of the steering circuit is then trapped.
Right Turn
STEERING CYLIN-
STEERING VALVE
FROM
PUMP
Figure 3
Neutral
FROM
STEERING CYLIN-
STEERING VALVE
PUMP
When the steering valve is turned to the left (Fig. 5) oil
is metered out port “LT” to the steering cylinder. Oil
displaced by the other end of the cylinder returns to the
steering valve through port “RT” and is directed out port
“OUT” back to reservoir.
FROM
PUMP
STEERING VALVE
Left Turn
Figure 4
Figure 5
STEERING CYLIN-
Reelmaster
®
223-D/5100-D/5300-D Page 7 - 3 Power Steering Schematics
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