Parking Brake System: Description and Operation

Cable Actuated Transmission-Mounted Parking Brake

A transmission mounted manually operated parking brake is mounted to the transmission extension housing and it incorporates a case assembly and a cable actuated 9x3-inch Bendix brake assembly.










The case assembly consists of opposed mounted roller bearings, companion flange and mainshaft assembly installed in a one-piece aluminum housing. On F-Super Duty Motorhome vehicles only, the speedometer and speedometer cable assembly are driven by the speedometer drive gear, splined to the mainshaft. The case assembly has its own lubrication supply, separate from the transmission. The parking brake is applied and released by a parking brake pedal on F-Super Duty Chassis Cab and Motorhome Chassis Vehicles. On Commercial Stripped Chassis Vehicles an Orschein lever is used.

The parking brake system on E-350 Commercial and Motorhome vehicles is similar in design and service to that on other vehicles. The control assembly is the same as F-150-250-350 vehicles, and should be serviced in the same manner. The cable assemblies are in the same as the E-150-250-350 vehicles, except for front cable lengths, the parking brake cable support assembly and the clevis which is integral to the cable.