How To Use Middle Legs on Lippert Ground Control 3.0 Without Controller

Updated 06/16/2020 | Published 06/12/2020

Question:

In March I purchased a Lippert Ground Control 3.0 6 point set. Because I am using this system on a Box Truck and not a fifth wheel, I have to make some modifications. One such modification is using the middle jack to support the landing gear because of the weight of the cab. The controller will not let me operate the middle jacks even in the manual mode. So, my question is what is the schematic of the jacks so I can make my own controller for just those two jacks? Thank You,

asked by: John G

Expert Reply:

The reason you're having this issue is because the middle jacks on the Lippert Ground Control 3.0 (6 point set) # LC675817 aren't designed to be run independently and will only come down after auto-leveling has been completed.

There is not a wiring schematic available for these jacks, but if you're looking to run them independently of the Ground Control remote system you will need to locate the power and ground wire (the larger wires connected to the motor) and setup a switch system on your own. There are two other wires that are connected to the middle legs that are for the hull effect to be used when leveling, so they're not going to be used in your application.

expert reply by: Erik B