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Weight-distributing Hitch – Vehicles without Air Suspension
WARNING: Do not adjust a weight-distributing hitch to any
position where the rear bumper of the vehicle is higher than it
was before attaching the trailer. Doing so will defeat the function of the
weight-distributing hitch, which may cause unpredictable handling, and
could result in serious personal injury.
When hooking-up a trailer using a weight-distributing hitch, always use
the following procedure:
1. Park the vehicle (without the trailer) on a level surface.
2. Measure the height of the top of the front wheel opening on the
fender, this is H1.
3. Attach the trailer to the vehicle without the weight distributing bars
connected.
4. Measure the height of the top of the front wheel opening on the
fender a second time, this is H2.
5. Install and adjust the tension in the weight distributing bars so that
the height of the front fender is approximately halfway between H1
and H2.
6. Check that the trailer is level. If not level, remove the trailer, adjust
the ball height accordingly, and repeat Steps 3–6.
Weight-distributing Hitch – Vehicles with Air Suspension
WARNING: Do not adjust a weight-distributing hitch to any
position where the rear bumper of the vehicle is higher than it
was before attaching the trailer. Doing so will defeat the function of the
weight-distributing hitch, which may cause unpredictable handling, and
could result in serious personal injury.
When hooking-up a trailer using a weight-distributing hitch, always use
the following procedure:
1. Turn off easy entry / kneel feature if equipped.
2. Park the vehicle, without trailer and with the ignition on, on a level
surface with all doors closed for a few minutes to ensure that the air
suspension has settled.
3. Measure the height of the top of the front wheel opening on the
fender, this is H1.
4. Attach the trailer to the vehicle; do not install the weight distributing
bars at this time.
Towing 243
2013 Navigator (nav)
Owners Guide gf, 1st Printing
USA (fus)
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