Emergency brake

  • 1989 FORD F-150
  • V8
  • 4WD
  • 143,000 MILES
Almost every time we put the vehicle's emergency brake on, it locks up and won't let me release it. HELP!
Do you
have the same problem?
Sunday, January 16th, 2011 AT 10:50 PM

1 Reply

Field Adjustment (Use this procedure to correct a slack system if new tension limiter is not installed)

Make sure brake drums are cold for correct adjustment.
Release the parking brake control.
Grip the tension limiter housing to prevent it from spinning and tighten the equalizer nut 6 full turns past its original position on the threaded rod.
Fully depress pedal to the last detent position and check for proper rear cable tension of 1556 N or (350 lbs). If tension is low repeat steps 2 and 3.
Release parking brake and check for rear wheel drag.
NOTE: The tension limiter will reset the parking brake tension anytime the system is disconnected provided the distance between the bracket and the cinch strap hook is reduced during adjustment. When the cinch strap hook contacts the bracket, the system tension will increase significantly and over tensioning may result. If all available adjustment travel has been used, the tension limiter must be replaced.

Place the parking brake pedal in the fully released position, then check the slack in the parking brake two rear cables.
The cables should be tight enough to provide full application of the rear brake shoes, when the parking brake lever or foot pedal is placed in the fully applied position, yet loose enough to ensure complete release of the brake shoes when the lever is in the released position.
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Sunday, January 16th, 2011 AT 11:07 PM

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