30 Ft. x 2 ga. Battery Cable
Power - #4 Black
Raise - #5 Black
Lower - #6 Black
Ground - Lower Solenoid - Black
Motor
Solenoid
Toggle Control Switch
2 ga.
Ground Cable
Electric Motor
150 amp
Circuit Breaker
Raise
Power Down
10 A Fuse
Power - Black
Cab Shut-Off
Ground
Main Liftgate
Power - Brown
Power - Blue
12 volt power supply
Ground - Lower Solenoid - Black
Shift Solenoid - Yellow
Lower Solenoid - Black
Ground - Yellow
Shift Valve
S5
Lower Valve
S1
Lower Valve
S2
Diode Cover
Lower Solenoid - Black
MBB
Power Down Harness with Diode
POWER DOWN
Pump Reservoir
Motor
Overheat
ACTIVE GROUND
ACTIVE POWER WIRE OR COMPONENT
INACTIVE POWER
S1 & S2 - Release Valve for Lowering
R1 & R2 - Flow Restrictor for limiting lower speed.
S5 - Shift Valve is activated upon LOWER function only.
Pilot to close check valve is NOT used on full time PD.
Power Down = M + S1&S2 + S5
MOTOR RUNS, GATE WON'T LOWER
1. CHECK FOR POWER, GROUND AND PROPER OPERATION
OF S1, S2, AND S5 VALVES
GATE LOWERS, MOTOR NOT RUNNING
1. CHECK FOR 12 VOLTS TO MOTOR RELAY FROM
DIODE IN POWER DOWN HARNESS
2. CHECK FOR 12 VOLTS TO MOTOR
3. CHECK MOTOR GROUND
Power
Load
Ground
- Green/Yellow
Ground - Green/Yellow
Ground - Green/Yellow
21
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