Parking Brake System: Adjustments
ADJUSTMENTS - PARK BRAKE CABLE TENSIONERNOTE: Tensioner adjustment is only necessary when the tensioner, or a cable has been replaced or disconnected for service. When adjustment is necessary, perform adjustment only as described in the following procedure. This is necessary to avoid faulty park brake operation.
1. Raise vehicle.
2. Back off cable tensioner adjusting nut create slack in cables.
3. Remove rear wheel/tire assemblies. Then remove brake drums.
4. Verify brakes are in good condition and operating properly.
5. Verify park brake cables operate freely and are not binding, or seized.
6. Check rear brake shoe adjustment with standard brake gauge.
7. Install drums and verify that drums rotate freely without drag.
8. Install wheel/tire assemblies.
9. Lower vehicle enough for access to park brake foot pedal. Then fully apply park brake pedal. The pedal should go approximately 3 inches past vertical toward the dash panel.
NOTE: Leave park brakes applied until adjustment is complete.
10. Raise vehicle again.
11. Mark tensioner rod 6.35 mm (1/4 inch) from edge of tensioner.
12. Tighten adjusting nut on the tensioner rod until the mark is no longer visible.
CAUTION: Do not loosen, or tighten the tensioner adjusting nut for any reason after completing adjustment.
13. Lower vehicle until rear wheels are 15 - 20 cm (6 - 8 inch) off shop floor.
14. Release park brake foot pedal and verify that rear wheels rotate freely without drag. Then lower vehicle.