Proper Liftgate Grounding

Many liftgates still use single pole systems and are grounded through the fifth wheel and kingpin. According to Phillips, when the kingpin ground is interrupted, the 8-gauge wire at the J560 connector can become overloaded.

Phillips says the solution is a dual-pole cable. The dual-pole cable has a dedicated positive and ground line directly from the tractor batteries.

The extra reliability in the connection ensures that there is a continuous charge to the liftgate batteries.

When using the dual-pole cable, Phillips says you are providing a cleaner signal to the liftgate batteries and other auxiliary components.

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