Field Adjustment (Bronco, "E" & "F" Series)
- Adjust rear brakes before adjusting parking brake cables. Use this procedure to correct slack in cable. Ensure brake drums are cold. Press parking brake to fully applied position. On models with Orschein parking brake, apply parking brake. On all models, grip tension limiter housing to prevent it from spinning.
- Thread equalizer nut 6 turns past original position until cinch strap begins to slip. Check cable tension at rear of equalizer assembly using Cable Tension Gauge (021-00018). Tension should be at least 310 lbs. (140 kg) on models with Orschein parking brake and 350 lbs. (159 kg) on all others. If tension is below specifications, adjust equalizer nut again.
- Release parking brake pedal or parking brake handle, and check for rear wheel drag. If drag is noted, remove drums, and check for clearance between parking brake lever and cam plate. Clearance should be .015" (.38 mm) with parking brake fully released. If clearance is incorrect, readjust parking brake cable.
NOTE:
Tension limiter will reset parking brake tension any time system is disconnected if distance between bracket and cinch strap hook is reduced during adjustment. When adjustment has been performed so cinch strap contacts bracket, system tension will increase greatly. This may cause an over-tension condition. When available adjustment travel has been used, replace tension limiter.