Ford 2015 F-550 v.1 Manuel d'utilisateur télécharger pdf (Page 199)

Do not use a hitch that either

clamps onto the bumper or

attaches to the axle. You must

distribute the load in your trailer

so that 10-15% for conventional

towing or 15-25% for fifth wheel

towing of the total weight of the

trailer is on the tongue.

Weight-distributing Hitches

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 loaded vehicle,

without the trailer, on a level

surface.

2. Measure the height to the top

of your vehicle's front wheel

opening on the fender. This is

H1.

3. Attach the loaded trailer to

your vehicle without the

weight-distributing bars

connected.

4. Measure the height to the top

of your vehicle's 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 your

vehicle's front wheel opening

on the fender is approximately

halfway between H1 and H2.

6. Check that the trailer is level or

slightly nose down toward your

vehicle. If not, adjust the ball

height accordingly and repeat

Steps 2-6.

Once the trailer is level or slightly

nose down toward the vehicle:

• Lock the bar tension adjuster

in place.

• Check that the trailer tongue

securely attaches and locks

onto the hitch.

• Install safety chains, lighting,

and trailer brake controls as

required by law or the trailer

manufacturer.

Fifth-wheel Trailer Hitch (If

Equipped)

WARNINGS

The mounting pads in the bed

are specifically designed for

certain fifth-wheel trailer hitches

and gooseneck ball hitches. Do

not use these mounting pads for

other purposes. Doing so could

result in vehicle structural

196

Super Duty (), enUSA

Towing

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