Mec Speed Level 2684 ES, Руководство по обслуживанию и запасным частям

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“3084 Speed Level™ Sigma Lift” Service and Parts Manual November 2009
Page 4a-35
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R O U B L E S H O O T I N G
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M O D E L S
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Y D R A U L I C
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R E S S U R E
A
D J U S T M E N T
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Steering Relief (RV2)
The steering Relief valve is located on the lower left side of the valve manifold. It is
necessary to remove the cap from the relief valve if adjustment is necessary.
REMOVING THE CAP WHILE THE ENGINE IS RUNNING WILL RESULT IN FLUID
LEAKAGE.
• Energize the steering to full left.
• Hold the switch for 10 seconds to get an accurate reading on the pressure gauge.
• If pressure is LOW, adjust steering relief valve ¼ turn clockwise and recheck.
• If pressure is HIGH, adjust steering relief valve ¼ turn counterclockwise and recheck.
• Repeat until correct.
C
O U N T E R B A L A N C E
V
A L V E S
Figure 4a-11: Counterbalance Valves
1. Loosen the locknut on one of the
valves.
2. Turn the adjustment screw counter-
clockwise (to the left) until it
reaches the internal stop and the
screw will turn no further.
3. Turn the adjustment screw clock-
wise (to the right) 3¼ turns.
4. Tighten the locknut while holding
the adjustment screw in position to
prevent it from rotating.
5. Repeat steps 1 through 4 on the
other Counterbalance valve.
6. Adjustment is complete.
Counterbalance
Valves
ART_3241