8717761
4,000 lb 12V DC A-Frame Trailer Jack
V4.0
12
For technical questions call 1-800-665-8685
TROUBLESHOOTING
Visit a Princess Auto Ltd. location for a solution if the device does not function
properly or parts are missing. If unable to do so, have a qualified technician
service the device.
Problem(s)
Possible Cause(s)
Suggested Solution(s)
Motor isn’t
operating.
Poor ground.
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.
No or low voltage
Check battery and electrical connections.
Power supplied must be a least 10 Volt
DC. If the battery is low, plug the trailer
cable into the tow vehicle, and start the
tow vehicle to provide power to the jack.
No power from trailer
connector.
Check that trailer connector has power.
Replace or repair the trailer connectors
or wiring.
Remote isn’t
operating.
Signal interference
from other wireless
devices.
If using near other trailers with remote-
operated jacks, maintain a distance of at
least 1 m. Do not operate the remotes
simultaneously.
