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HEAVY DUTY POWER JACKS
Place manual override handle (
FIG 1-C) into alignment tube and
engage drive pin. Rotate handle counterclockwise to raise or
clockwise to lower the camper.
MAINTENANCE
1. Before each use, inspect jack tubes and replace if bent or damaged.
2. If wiring is connected to battery terminal, inspect at least twice each
year for corrosion. Clean with a solution of baking soda and water,
then apply a thin coat of grease. NOTE: The motor ground screw
(
FIG 1-D) and mounting bolts (FIG 1-B) must be cleaned too if a ground
continuity problem occurs.
3. Once each year, extend jack as far as possible and clean inner ram
tube. Coat tube with light coat of silicone spray lubricant.
The Electric Drive Motor Landing Leg system is protected by a 30 amp
fuse. If replacement is necessary, replace only with a Buss Type AGC-30
fuse or equivalent, available in automotive supply stores.
Power Jack
TROUBLE SHOOTING GUIDE
Guides are only intended for use on Atwood
®
products by service
technicians who have successfully completed Atwood
®
training.
This guide should be used in conjunction with the appropriate
Instruction Manual provided with the product and any applicable
Industry Standards. This is not intended to be a complete list.
Please direct questions concerning service of Atwood
®
products to
866-869-3118 before proceeding.
ƽ WARNING
PERSONAL INJURY AND/OR PRODUCT DAMAGE
• If any of the following conditions develop, the trailer must not be
used until proper corrective action is taken.
CONDITION WITH SOLUTIONS
MOTOR WILL NOT OPERATE
No or low voltage..........................Check battery & electrical connections.
Must have minimum of 10 VDC
Jack flange not making good ......Clean paint or dirt from coupler frame
contact to provide adequate
ground with coupler surface
Blown fuse ....................................Replace with 30 amp AWG fuse
Loose wires on ON/OFF switch ....Secure wire connections
ON/OFF switch faulty ....................Replace switch
Motor faulty ..................................Replace motor
POOR GROUND
WHEN BUTTON IS PRESSED ON JACK
-
Jack doesn’t operate ....................Inspect motor mounting bolt for Loctite
®
.
If Loctite
®
found, replace with new 1/4-20
x 3” screw and two lock washers. If bolt
unavailable, clean present bolt and hole
with wire buffing wheel. Inspect bolt
hole. If dirty, clean with a 1/4-20 tap.
MOTOR CLUTCH ENGAGES
Normal if jack leg is at fully ..........None, but let go of switch when you hear
retracted or extended position the clutch
Worn worm gear ..........................Replace jack ram
Dirty inner ram tube......................Clean ram tube and coat with light coat
of silicone spray
Bent inner ram ..............................Replace inner ram
Clutch faulty ..................................Replace motor
Jack at angle ................................Secure mounting bolts and ensure a
support plate is used.
Excessive tongue weights ............Determine if jack is adequate for tongue
weight.
UTILITY LIGHT DOES NOT WORK
Loose wires on the ON/OFF ..........Secure wire connection
switch
Bad light bulb................................Replace bulb
AMP DRAW
Range of motor ............................8-45 amps
Effective: 11/21/07
IMPORTANT CAUTION - If equalizer bars are attached to the tow
vehicle and the trailer while operating the power tongue jack,
you may experience the motor clutching the moment the jack
sees load. This will occur because you are lifting both the tongue
of the trailer and the rear of the tow vehicle. The 1500 lb. and
2500 lb. acme screw jacks cannot lift this excessive weight. To
overcome this excessive weight, you should upgrade to the 3500
lb. power jack. The ball screw mechanism utilized in this jack
should allow you to lift this load.
Jack operates only partially up
or down, or
Jack runs intermittently
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