8787780 3,500 LB 12V DC ELECTRIC A-FRAME TRAILER JACK
V1.0
10
For technical questions call 1-800-665-8685
TROUBLESHOOTING
Visit a Princess Auto Ltd. location for a solution if the tool does
not function properly or parts are missing. If unable to do so,
PROBLEM(S) POSSIBLE
CAUSE(S)
SUGGESTED SOLUTION(S)
Motor isn’t
operating.
1. Poor ground.
2. No or low
voltage.
3. No power
from trailer
connector.
4. Operating
switch
malfunction.
5. Motor
malfunction.
1. 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.
2. 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.
3. Check that trailer connector
has power. Replace or repair
the trailer connectors or
wiring.
4. Check wiring and fix or replace
switch.
5. Have a qualified technician
repair or replace the motor.
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.
