atwood Wheel Leveling IOM User Manual
Table of Contents
Installation 2-10
Leveler legs……………………………………………………….....……… 2
Controller………………………………………………………………........ 4
Dip-switch Configurations…………………………………………………. 5
Wire Harness Installation………………………………………………….. 7
Operation 11-14
Program HOME Position...................................................................... 12
Program/Reprogram AUTO Level Position / Keypad Function............ 13
Unhooking from Tow Vehicle & Leveling/Hooking to Tow Vehicle... 14
Leveling Features…………………………………………………………. 15
System Protection Features...................................................................... 16
Maintenance / Warranty............................................................................. 17
Troubleshooting ……………………………………………………………….. 18-21
Index……………………………………………………………………………… 22
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LEVELER LEGS
1. Install direct drive levelers as close to the front bulkhead, and the rear levelers as close to
the rear wheels as possible in a rectangular formation. If the levelers are installed
unevenly, the effectiveness of the system will be compromised.
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2. Position leveler vertically against frame so base of foot has 8-9" minimum ground clearance
when RV is loaded to its maximum GVWR (NOTE: the clearance of a raw rail is different than
the clearance of a fully completed unit).
3. For all Leveleg installations, refer to the diagram with the correct configuration.
A. For 5K Direct Drive Landing LegsTM,
i. Attach mounting brackets to legs using 3/8” – 16 carriage bolts and nuts. Torque bolts
to 18-20 ft-lbs. On each leg, position one bracket above and one below mounting tabs
welded to landing leg housing.
ii. Position legs against frame in a vertical position. Legs should not be more than 1/4˝
out of parallel with each other. Locate foot pads and lock pins for maximum ground
clearance and to clear lower edge of trailer.
iii. Mark mounting bracket location on trailer frame. Weld mounting bracket to trailer
frame on both vertical sides and across
either top or bottom. DO NOT weld edges
that contact mounting tabs on landing
legs.
NOTE: Due to different frame configurations, it
may be necessary to weld angle bracket tubing
to upper and/or lower part of frame to locate
landing legs vertically and plumb.
B. 7.5K LevelegsTM. There are different ways
to mount the 7.5k Levelegs. The hat
bracket shown below left attaches the
Leveleg oriented to the front or rear of the RV, and the hat bracket shown below middle
attaches the Leveleg oriented perpendicular to the frame.
i. For bolt on assembly, attach the frame bracket to the frame using 4 sets of 1/2”-13
grade 5 nuts and bolts and 1/2” flat and locking washers. This bracket can also be
welded to the frame on some units.
ii. Fit the hat bracket around the Leveleg and attach to the frame bracket using 4 sets
of 1/2” – 13 grade 5 bolts and 1/2” flat washers.
NOTE: The hat brackets used for the 7.5k Levelegs can be oriented in multiple ways to
best fit the RV. The hat bracket can be rotated 180° to bolt the Leveleg higher or lower
to the frame bracket. Also the top tab of the Leveleg can either fit through the slot of the
hat bracket, or rest on the top of the hat bracket in order to offer more options for
assembly. These options are illustrated in the figure below right.
4. Lubricate the bolts and torque to 65 ft-lbs.
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- 4 -
Dip Switch Configuration
• In order to accommodate as many units as possible, there
is a set of four small “dip switches” on the control board
that must be configured. Refer to the following table and
figure for the required configuration for your RV.
NOTE: If any of the blank configurations are used (noted by
“DEAD POSITION) in the table below), the Controller will not
work. In this case, the Control Pad Leveler position LEDs will
flash up and down.
Configurations Rear Levelers Rear Levelers Stroke Length Front Levelers Front Levelers Stroke Length
0000 7.5K 15" of travel 5K Direct Drive 24" of travel
0001 7.5K 13" of travel 5K Direct Drive 24" of travel
0010 DEAD POSITION
0011 DEAD POSITION
0100 DEAD POSITION
0101 DEAD POSITION
0110 DEAD POSITION
0111 DEAD POSITION
1000 DEAD POSITION
1001 DEAD POSITION
1010 DEAD POSITION
1011 DEAD POSITION
1100 DEAD POSITION
1101 DEAD POSITION
1110 DEAD POSITION
1111 DEAD POSITION
NOTE: These switches MUST be configured correctly. Incorrect configuration can result in
poor performance or damage to the system.
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Controller Location
1. To optimize the effectiveness of the Controller,
it should be mounted as close to the center of
the RV as possible. There is an optimal zone
and an acceptable zone to install the Controller
as shown to the right. Any other place will
compromise the operation of the Controller.
2. Install Controller in a clean, dry interior area
protected from moisture. Use corner holes of
unit to fasten base horizontally to mounting
surface, using appropriate hardware for
surface.
3. Install the AUTO POSITION Controller so the
forward arrow points toward the front of the
RV. The controller must be hung upside down
to match the arrows on the side of the
Controller, within 10° of horizontal level
(parallel with mounting surface) as shown
below. Sufficient space below the board must
be provided for the wires to be connected.
NOTE: Any control board installed outside the
acceptable area (defined to the right) will
void warranty
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CONTROLLER WIRING
All information below pertains to the diagram on the page 10
NOTE: Atwood recommends using the Plug n’ Play harness kit
• If modifications to the harnesses must be made, please mimic the Atwood harnesses, and
follow the guidelines provided by the manufacturer of the harness terminals. Be sure any wire
crimps are strong enough as defined by the manufacturer. Poor connections can hurt system
function. Refer to the wire harness index for the pin outs of each harness. Do not
make any wires longer than specified below.
• For any extra wire after installing a harness, fold end to end (do not coil) and tie as
shown. (see right)
• Atwood does not guarantee wiring functionality if wires are modified and/or new or
different harnesses are made.
NOTE: For all wires, use strain relief clamps to reduce damage to the terminals.
Auto Position Control Pads
NOTE: Mount the control pad in a clean, dry, and lockable compartment.
1. Provide a space with the dimensions shown in the figure to the right for the control pad at
desired location.
Note: Reference control pad when making cutout;
there is tight clearance. Also to ensure the longevity
of the product, mount keypad away from potential
sources of moisture: windows, cup holders, etc.
2. Use the corner holes to fasten control pad to
mounting surface using appropriate hardware for
surface.
3. Connect control pad wire harness to control pad.
4. Route the control pad wire harness to controller
and connect the two.
5. Fasten a strain relief clamp (not included) within
12” of the control pad. This is to prevent the wire
harness connection from being damaged at the
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