Pump Wiring & Hydraulics

Wiring Diagram Information
Before beginning any tests on the wiring and controls, ensure that your dump trailer’s battery is charged to a minimum of 12 volts DC. If you lack a battery load tester, you can simply press the test button on the battery charger to verify the charge level of the battery. For accurate testing of your dump trailer, you will require a DC voltmeter, a 12-volt test light, or a power probe.

If the pump does not run, start here:

If the pump runs but dump body does not go up or down, start here:

WARNING

A Low or under charged battery will allow pump to run and SOUND NORMAL but will not allow enough power to activate fluid solenoids to allow them to open the up and down valves properly. If Battery Voltage is low trailer will go up but wil not come down even with pump motor running.
RECHECK the battery state of charge before assuming the pump on your dump trailer is bad.

IF BOTH WIRES ARE LIGHTING UP AND BOX STILL DOES NOT GO UP OR DOWN PLEASE CALL US FOR FURTHER ASSISTANCE

hydraulic pump wiring diagram