Description: Free Download Towing Guide for the 2010 Ford F-150 in PDF ebook in pdf files,Many states require a separate braking system on trailers with aloaded weight of more than 1,500 pounds. For your safety, Ford MotorCompany recommends that a separate functional brake system beused on any towed vehicle, including those dolly-towed or towbar-towed. There are two basic types of brake systems designed toactivate trailer brakes:1. Electronically Controlled Brakes usually provide automatic andmanual control of trailer brakes. They require that the tow vehiclebe equipped with a controlling device and additional wiring forelectrical power. These brakes typically have a control boxinstalled within reach of the driver and can be applied manuallyor automatically.