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Date of Origin – 02/24/11
Updated – 02/03/20
TEST PROCEDURE:
CAUTION: To test conveyor system, power unit must be equipped with pressure
relief valve set below 3000 psi before proceeding.
Power Unit Relief Check:
1. Insure needle valve on Flow Meter Assembly is in open position by turning the needle valve
counter clockwise.
2. Power up hydraulic power unit to provide pressure to the conveyor system. Do not activate
conveyor at this time. System pressure should read 0-100 psi and 20-30 gpm at the Flow Meter
Assembly.
3. Slowly turn the needle valve clockwise on Flow Meter Assembly to close off the hydraulic ow.
The gauge pressure will increase and the ow meter should read constant at original ow rate.
Verify the pressure maximum is 2500 psi and does not continue to build above 3000 psi. If the
pressure gauge continues to climb above 3000 psi open the needle valve and verify the power
unit has its own relief valve and reset to appropriate pressure if equipped.
a. At maximum pressure setting and needle valve fully closed the ow meter should
reduce to 0 gpm and pressure reading 2500-3000 psi.
b. Flow Meter should read between 20 gpm minimum and 30 gpm maximum any
where below 2500-3000 psi or power unit relief setting.
4. If the power source pressure is set at maximum of 2500-3000 psi and the ow rate is 20-30 gpm
below this setting then proceed to step 4 at control handles on trailer.
Hydraulic System Check
5. Raise the incline conveyor by moving the right
selector valve handle rearward to bottom out
incline cylinder to check trailer relief valve setting.
6. Check gauge pressure on selector valve.
Pressure should read 2500 psi on gauge when lever
is being held reward. If the gauge does not read
2500 psi the pressure relief on the selector
valve must be adjusted.
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