2007 Ford F250 Owner Guide 2nd Printing - Page 163
2007 Ford F250 Manual
Page 163 highlights
Tires, Wheels and Loading Weight distributing hitch When hooking up a trailer using a weight distributing hitch, always use the following procedure: 1. Park the unloaded vehicle on a level surface. With the ignition on and all doors closed, allow the vehicle to stand for several minutes so that it can level. 2. Measure the height of a reference point on the front and rear bumpers at the center of the vehicle. 3. Attach the trailer to the vehicle and adjust the hitch equalizers so that the front bumper height is within 1⁄2" (13 mm) of the reference point. After proper adjustment, the rear bumper should be no higher than in Step 2. Note: Adjusting a weight distributing hitch so the rear bumper of the vehicle is higher than it was unloaded will defeat the function of the weight distributing hitch and may cause unpredictable handling. Safety chains Always connect the trailer's safety chains to the frame or hook retainers of the vehicle hitch. To connect the trailer's safety chains, cross the chains under the trailer tongue and allow slack for turning corners. If you use a rental trailer, follow the instructions that the rental agency gives to you. Do not attach safety chains to the bumper. Trailer brakes Electric brakes and manual, automatic or surge-type trailer brakes are safe if installed properly and adjusted to the manufacturer's specifications. The trailer brakes must meet local and Federal regulations. If you own a trailer with a hydraulic brake system, do not connect the trailer's hydraulic brake system directly to your vehicle's brake system. The vehicle's brake system is only designed to carry the appropriate amount of brake fluid for the vehicle alone. Connecting a hydraulic trailer braking system could adversely affect your vehicle's braking performance. The braking system of the tow vehicle is rated for operation at the GVWR not GCWR. 163 2007 F-250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA (fus)