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Labrie EXPERT Service Manual

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382 Lifting Arms
The hydraulic flow required to feed the valve comes from the dual vane pump.
Figure 10-6
Dual vane pump
Adjusting Valve Pressure
The following pressure adjustment procedure explains how to adjust the pressure of each function of
the H
ELPING-HAND™ automated arm.
The lockout/tagout procedure must be performed each time maintenance has to be done on the
vehicle. See Locking Out and Tagging Out the Vehicle on page 14.
Before adjusting the valve pressure, make sure to identify each section of the valve (see Figure 10-5)
and its adjustment screws.
NOTE: Extra personnel may be needed to adjust arm pressure correctly.
IMPORTANT: Always use safety precautions when performing maintenance tasks.
Warning!
Stay out of the path of the arm while manually moving the HELPING-HAND™ lifting arm. Serious
injury or even death may result.
Pressure Adjustment Table
Arm Function Pressure Setting Cycle Time
a
Arm Extend System Pressure 3.7 - 4.2
Arm Retract System Pressure 2.8 - 3.3
Arm Up System Pressure 2,5 - 3,0

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Labrie EXPERT Specifications

General IconGeneral
BrandLabrie
ModelEXPERT
CategoryTrucks
LanguageEnglish

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