FORD 2013 E-450 v.1 - Manual (Page 163)

For load specification terms found on the tire label and Safety
Compliance label and for instructions on calculating your vehicle’s load,
refer to Load limit in the Load Carrying chapter.
Remember to account for the trailer tongue weight as part of the vehicle
load when calculating the total vehicle weight.
Hitches
Do not use a hitch that either clamps onto the bumper or attaches to the
axle.
Distribute the trailer load so 10-15% of the total trailer weight 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 the vehicle front wheel opening on
the fender, this is H1.
3. Securely attach the loaded trailer to the vehicle without the
weight-distributing bars connected.
4. Measure the height to the top of the vehicle 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 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 the
vehicle. If not, adjust the ball height accordingly and repeat
Steps 1–6.
7. Lock bar tension adjuster in place.
8. Check that the trailer tongue is securely attached and locked to the
hitch.
9. Install safety chains, lighting, and trailer brake controls as required
by law or the trailer manufacturer.
Towing 163
2013 Econoline (eco)
Owners Guide gf, 1st Printing
USA (fus)