Parking Brake System: Description and Operation
Parking Brake - E-150 - E-550On E-150, E-250 and E-350, the parking brake is a drum-in-hat type system mounted in the hub of the disc brake. On the E-450 and E-550, the parking brake is mounted to the transmission extension housing. All systems are controlled by a foot-operated parking brake control mounted on the steering column support bracket.
On E-150, E-250 with multiplier, and E-350, the parking brake cable is self-adjusting. On E-250 with tension limiter, E-450 and E-550, the parking brake cable is adjustable.
Parking Brake System - E-150, E-350 (Disc Brake Shown, Drum Brake Similar) (Part 1):
Parking Brake System - E-150, E-350 (Disc Brake Shown, Drum Brake Similar) (Part 2):
Parking Brake System - E-150, E-350 (Disc Brake Shown, Drum Brake Similar)
Parking Brake System - E-250 with Tension Limiter:
Parking Brake System - E-250 with Tension Limiter
Parking Brake System - E-250 with Multiplier (Part 1):
Parking Brake System - E-250 with Multiplier (Part 2):
Parking Brake System - E-250 with Multiplier
The parking brake system is actuated when the parking brake control is depressed. The parking brake control applies tension to the front parking brake cable and conduit, the parking brake intermediate cable, and the parking brake cable equalizer. The parking brake cable equalizer is coupled to the RH parking brake rear cable and conduit, and the LH parking brake rear cable and conduit. The respective rear brake assemblies are then applied.
If the parking brake control is not fully released, the parking brake signal switch will illuminate the brake warning light.
The parking brake signal switch is mounted on the parking brake control.
Drum Brake Components - E-150 (Part 1):
Drum Brake Components - E-150 (Part 2):
Drum Brake Components - E-150
Disc Brake Components - E-150:
Disc Brake Components - E-150
Parking Brake - E-350:
Parking Brake - E-250, E-350
The rear wheel disc brake assembly contains a cable actuated parking brake assembly.
If the parking brake control is not fully released, the parking brake signal switch will illuminate the brake warning light.
The parking brake signal switch is mounted on the parking brake control. The switch is held in place by a self-tapping screw and aligned with a locator pin.
E-450, E-550
Parking Brake Components - E-450, E-550:
Parking Brake Components - E-450, E-550
The parking brake system is actuated when the parking brake control is depressed. The parking brake control applies tension to the front parking brake cable and conduit, activating the parking brake assembly.
If the parking brake control is not fully released, the parking brake signal switch will illuminate the brake warning light.
The parking brake signal switch is mounted on the parking brake control.
Parking Brake - E-550
Motorhome Chassis
Parking Brake Components:
Parking Brake Components
The parking brake is mounted on the transmission extension housing.
The parking brake system is actuated when the parking brake control is depressed. The parking brake control applies tension to the front parking brake cable and conduit, activating the parking brake assembly.
Brake Warning System
The brake warning indicator:
^ is located in the instrument cluster.
^ illuminates to signal the driver that the parking brake is applied or to signal a low brake fluid condition.
^ remains lit to indicate a brake system concern has occurred.