Parking Brake Lining Seating Procedure
Perform lining seating in a place with good visibility, and pay careful attention to safety. Perform lining seating by the following procedure when replacing the parking brake shoe assemblies or the rear brake discs, or when brake performance is insufficient.
- Adjust the parking brake pedal stroke to the standard value, as outlined earlier in this section.
- Depress the parking brake pedal with a force of 23-34 lbs. (100-150 N).
- Drive the vehicle at a constant speed of 22-31 mph (35-50 kmh) for about 328 ft. (100 meters).
- Release the parking brake and let the brakes cool for five to ten minutes.
- Repeat the procedure in steps 2. to 4. four to five times.
- Depress the parking brake pedal with a force of 44-55 lbs. (196-245 N) and count the number of notches. The standard value is 1 notch
If the parking brake pedal stroke is not within the standard value, adjust as follows:
- Release the parking brake.
Remove the console inner box tray and plate, and then loosen the adjusting nut to move it to the cable rod end so that the cable will be free.
Remove the rear wheels, and then remove the adjustment hole plug on the brake disc.
Use a flat-tip screwdriver to turn the adjuster in the direction of the arrow (the direction which expands the shoe) so that the disc will not rotate by hand. Return the adjuster five notches in the direction opposite to the direction of the arrow.
Install the rear wheels, and then tighten the wheel nuts to 66-80 ft. lbs. (88-108 Nm).
WARNINGMake sure that the parking brake pedal stroke is within the standard value. If the stroke is too short, it may cause the brakes to drag.
Turn the adjusting nut to adjust the parking brake pedal stroke to the standard value. After adjustment, check that the adjust nut and the cable rod is not loose.
- Release the parking brake and turn the rear wheels to check that the rear brakes are not dragging.
- If either of the parking brake cables is replaced, adjust the parking brake pedal stroke as described previously, depress the parking brake pedal 10 times with approximately 135 lbs. (600 N) to eliminate the initial slack of the cable. Then adjust the parking brake pedal stroke as outlined above again.
Removal & Installation
- Raise and safely remove the vehicle.
- Unbolt and remove the caliper, but do not disconnect the fluid line. Suspend the caliper with a piece of wire. Do NOT let it hang by it-s brake line.
- Remove the rotor.
- Remove the shoe-to-anchor spring.
- Remove the adjusting wheel spring.
- Remove the rear brake shoe slack adjuster.
- Remove the parking brake operating lever strut.
- Remove the strut-to-shoe spring.
- Remove the rear brake shoe spring cup and shoe hold-down spring.
- Remove the parking brake cable clip.
- Remove the rear parking brake cable connection.
- Remove the rear brake shoe assembly.
Use a flat-tipped screwdriver or a similar tool to open up the rear brake chamber retainer joint. Then remove the rear brake chamber retainer.
- Remove the parking brake operating lever.
- If wheel hub, backing plate and shoe-hold down pin removal are necessary, perform the following:
Inspect the parking brake lining, as follows:
- Measure the thickness of the brake lining at several places. The standard value is 2.8 mm (0.11 inch) and the minimum limit is 1.0 mm (0.04 inch)
- If the thickness of the brake lining is below the limit, replace the shoe assemblies on both sides of the vehicle. Never replace only one side.
Installation is the reverse of the removal procedure, noting the following:
- Refer to the tightening specifications shown on the accompanying illustration.
Use pliers or a similar tool to close the rear brake chamber retainer end onto the pin.
Install the rear brake shoe slack adjuster as shown in the accompanying illustration.
WARNINGThe front and rear shoe-to-anchor springs are not interchangeable, so the blue spring must be installed at the front side and the yellow spring must be installed at the rear side.
Install the shoe-to-anchor springs in the order shown in the accompanying illustration.
- Perform the parking brake pedal stroke check and adjustment, and the parking brake seating procedure, as outlined in this section.