SPECIFICATION
Verify that distance from the center of the pedal to the engine compartment bulkhead is as specified.
Specification: 7.60-7.72 in (193-196 mm)
Scheme 1
- Disconnect brake pedal switch connector.
- Loosen locknut B and rotate switch A until it does not contact pedal.
- Loosen locknut D and turn rod C to adjust height of the brake pedal. If necessary, further rotate switch A to prevent it from contacting pedal.
- Rotate brake pedal switch A in until plunger is completely compressed, then rotate it out about 1/2 turn. Tighten locknuts B and D.
- Reconnect brake pedal switch connector.
- Verify operation of stoplights.
Scheme 2
- Pump pedal a few times (with engine off) to eliminate any slack in system.
- To measure pedal free play, gently press pedal by hand until resistance is felt. Pedal free play: 0.16-0.28 in (4-7 mm)
Scheme 3
- Loosen locknut D and turn rod C to adjust free play.
- Verify pedal height and stoplight operation.
- Tighten locknut D.
Scheme 4
- Verify that clearance from floor to center of the pedal pad is as specified when pedal is pressed with a force of about 132 lb (65 Kg). Pedal-to-floor clearance: Minimum: 2.75 in (70.0 mm)
- If clearance is less than required, check for the following. Air in brake system. Malfunctioning automatic adjuster (rear brake drums).