Princess auto TowingMaster 8970220, Manual

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place
with the 3/8” safety lock pin (#13) provided.
WARNING:
Do not stack blocks under the jack’s foot to increase the height. Stacked
blocks may become unstable and fall.
3. Extend the jack by pushing the operating switch (#4) UP .
Note : Under heavy use, the internal circuit breaker may open, causing the motor to switch off. In
this case, release the operating switch, and wait 15 seconds for the breaker to reset before
resuming operation.
4. Retract the jack by pushing the operating switch (#4) DOWN .
Note : If you attempt to extend or retract the jack and it does not respond, it may be at the end of
the stroke. If the jack fails to respond, try operating it in the opposite direction. If it will not
operate in either direction refer to the troubleshooting guide. For FORD owners refer to the
troubleshooting manual for important installation information.
5. After hitching the trailer to a tow vehicle, slide the foot pad (#15) fully into the jack tube, secure it
with the safety lock pin (#13) and retract the jack tube. You may have to raise the jack tube
slightly to release pressure on the safety lock pin.
6. Always check ground clearance before driving off.
MANUAL OPERATION INSTRUCTIONS
1. If for any reason electric power is lost, disconnect the jack from the power source.
2. Remove the rubber access cover on the top of the jack.
3. Insert the manual crank handle into the access hole on the top of the jack, engaging the drive
screw.
4. Rotate the manual crank handle counter-clockwise to extend the jack, and clockwise to retract it.
MAINTENANCE
1. The Electric A-frame jack motor is sealed and maintenance-free. It is important to maintain the
electrical system including the battery and charger (not included).
2. Ensure all connections are tight and free of corrosion and that the jack is properly grounded.
3. Make sure the battery is fully charged prior to use.
TROUBLESHOOTING
Refer to below troubleshooting guide if the device does not function properly or parts are missing. If
unable to do so, have a qualified technician service the device.
Failure Possible Cause Corrective Action
Motor will not
operate
No or Low Voltage
Check battery & 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.
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.
Check electrical connections.