atwood Single and Dual Mount Motorized Jack System - Manual

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SAFETY ALERT SYMBOLS
Safety Symbols alert you to potential personal safety hazards. Obey all safety
messages following these symbols.
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WARNING
ƽ
CAUTION
avoid possible avoid possible
injury or death injury and/or property damage
FOR YOUR SAFETY READ ALL INSTRUCTIONS
BEFORE INSTALLATION AND OPERATION
Installer: Provide these instructions to the consumer.
Consumer: Keep documents for future reference.
Atwood Single and Dual Mount Jacks are intended for use on Fifth
Wheel, Gooseneck and Standard Trailers. It is not intended for use with
commercial trucking applications.
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WARNING
VEHICLE CAN MOVE OR COLLAPSE
• Never exceed the rated capacity of the Jack as stated on the label
located on the jack.
CAPACITY A Single Mount Jack has a 10,000 lb. lifting capacity and a
15,000 lb. maximum support capacity.
POWER REQUIREMENTS
INSTALLATION
WELDING INSTRUCTIONS
• M . I . G . OR STICK - Make 3/8˝ fillet welds minimum. Use No. E6011 AWS
welding rod, 3/8˝ diameter. Machine amps (AC or DCRP) 2 160-180
amps with 50 volts.
• M . I . G . WELDING - Use A.W.S. ER 70S-3 or 6 wire or equivalent with a
diameter of .035 - .045. The recommended shielding gas mixture is
75% - 95% Argon & 25% - 5% CO
2
.
• STICK WELDING - Use E6011 A.W.S. welding rod or equivalent with a
diameter as follows: 1/8˝ electrode set power between 115-130
Amps DC or 5/32˝ electrode set power between 140-160 Amps DC.
JACK INSTALLATION
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WARNING
EXPLOSION
• Control and motor relays are not ignition protected. DO NOT install
in areas which require ignition protected devices (such as battery
or propane tank storage compartments).
1. Block the trailer tires fore and aft to prevent the trailer from rolling.
2. Support the front end of the trailer so it can be worked on and around dur-
ing the jack installation. Be sure the trailer is level.
3. Position jack vertically against trailer mounting surface (typically the for-
ward bulkhead under the gooseneck). Mark weld-on bracket location to
provide 9˝ minimum ground clearance from bottom of jack foot when trail-
er is hitched and loaded. The jack should be located on the centerline of
the trailer if one jack is used. If two jacks are used, they should be located
equal distance from the centerline of the trailer see
FIG 1 & 2.
4. Weld the mounting bracket to the trailer frame. Use at least 8˝ of 3/8˝ fillet
weld on each side of the bracket. Distribute the weld along the length of
the bracket to resist prying forces as well as compression loads. The
welded attachment of the Jack must be made to structurally sound com-
ponents of the trailer frame (see
FIG 3). The jack bracket can be welded to
the trailer while attached to the jack or removed from the jack. If it is left
attached to the jack, protect the power wires from touching the trailer
frame or jack during welding to avoid damage to the control. Protect jack
and wires from welding spatter. If the jack bracket is removed from the
jack, install 4-6˝ long 1/2˝ bolts through the bracket holes and install nuts
snugly against bracket. This is to minimize bracket distortion from welding.
See
WELDING INSTRUCTIONS stated after INSTALLATION.
5. Paint bracket and weld areas on trailer.
6. If a special “OEM” bracket is used, attach the bracket to the trailer using
the hardware provided. (Lock washers or prevailing torque fasteners must
be used for the jack mounting). Torque bolts to 65 ft-lbs. then mount the
Atwood Jack to the bracket as described in
STEP 7.
7. Attach housing bracket ( FIG 4) to frame bracket with eight (8) bolts and
washers. bolt 1/2˝ - 20 Grade 5
washer 1/2˝ locking
Lubricate the bolts and torque to 65 ft-lbs. All eight (8) bolts must be
in place.
MANUAL SWITCH/WIRING INSTALLATION
1. Cut a 1-3/4˝ diameter hole deep enough for switch to sit in and to
be flush with mounting surface on outside of trailer.
2. Pull wires through hole for switch and use switch plate as template
to mark four screw holes. Move switch plate and drill (4) 1/8˝ diame-
ter screw holes.
3. Replace switch with wires through hole and mount the switch using
(4) self-tapping Phillips head screws.
4. The long wires will run back to the motor wires on the jack. Cut the
connectors off of the motor wires on the jack and connect the red
wire to the red wire and the black wire to the yellow wire on the
motor using heat shrink butt connectors. If more wire length is
needed, use a minimum 10 gage wire and properly sized butt con-
nectors. Add wire loom over the wiring, add electrical tape at each
end and support as needed using wire ties.
5. Route the short wires(power) along a safe path to the auxiliary stor-
age battery on board the trailer. Add length of 10 gage wire using
butt connectors as necessary.
6. Cut the power wires to a convenient length for terminating at the
battery. Strip the wires back 1/2˝ and crimp on the ring terminals to
each of the red and black wires. Add wire loom and wire ties to
support.
7. Attach the black power wire from the switch to the battery negative
(-) terminal on the battery.
8. Install the manually resetable 40 AMP circuit breaker to the battery
positive (+) terminal. Connect the red power wire ring terminal to the
load side terminal of the 40 AMP breaker. NOTE: The circuit breaker
must be mounted under a battery cover or inside a battery compart-
ment out of wet conditions. (See figure X)
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LITERATURE NUMBER
MPD 66199
SINGLE AND DUAL MOUNT
MOTORIZED JACK SYSTEM
ENGLISH, FRANÇAIS (et Canada) Effective 12/10/07
•Installation •Operation •Maintenance