Check battery and electrical
connections. Must have minimum of
10 VDC. If the battery is low, plug the
trailer cable into the tow vehicle, and
start the tow vehicle to provide power
to the jack.
Clean area between the jack
mounting plate and coupler, and
ensure paint has been removed by
the star washers.
Direct metal-to-metal contact
must exist between mounting
components to ensure good electrical
contact.