Pinpoint Test B: The Parking Brake Will Not Release And/Or Rear Brakes Drag

B1 ISOLATE THE PARKING BRAKE CONTROL
- Disconnect the rear cables from the cable equalizer.
- Does the parking brake release?
  - Yes : INSTALL a new parking brake control. REFER to Parking Brake - Exploded View . TEST the system for normal operation.
  - No : GO to B2.
B2 CHECK THE REAR BRAKE SHOES AND HARDWARE
- Remove the rear brake drum. Refer to DRUM BRAKE .
- Inspect the brake shoes, hardware and backing plate.
- Are the shoes, hardware and backing plate in good condition?
  - Yes : GO to B3.
  - No : INSTALL new components as necessary. REFER to DRUM BRAKE . TEST the system for normal operation.
B3 ISOLATE THE REAR PARKING BRAKE CABLES
- Disconnect the parking brake cables from the brake shoe actuators.
- While holding the rear cable conduit, attempt to slide the rear cable inside the conduit.
- Does the rear cable slide freely inside the conduit?
  - Yes : The system is operating normally at this time. The concern may have been cause by a seized or binding component. CLEAN and LUBRICATE the brake backing plate using the specified materials. CONNECT all cables and INSTALL all components. TEST the system for normal operation.
  - No : INSTALL new rear brake cable(s). REFER to Parking Brake - Exploded View . TEST the system for normal operation.