Parking Brake System: Service and Repair
REMOVAL
Follow removal steps outlined in illustration.
Removal Service Points
Rear Speed Sensor Removal.
CAUTION: When removing the speed sensor from the knuckle, use care not to hit the pole piece at its tip against the rotor teeth or other parts.
Self-Locking Nut Removal.
With the special tool, secure the axle shaft and remove the companion flange self-locking nut.
INSPECTION
Checking For Unusual Wear Of The Brake Lining And Brake Drum.
1) Measure the thickness of the brake lining at several places.
Standard value: 2.8 mm (0.110 inch)
Limit: 1.0 mm (0.039 inch)
CAUTION: Replace the brake shoes if the thickness of the brake lining is the limit value or less.
2) Measure the brake disc drum inner diameter at two or more places.
Standard value: 168.0 mm (6.6 inch)
Limit: 169.0 mm (6.7 inch)
CAUTION: Replace if the brake disc drum inner diameter is the limit value or more.
INSTALLATION
Installation in reverse order as removal.
Installation Service Points
>A< Shoe-To-Anchor Spring Installation.
The shoe-to-anchor spring must be installed in the sequence shown in the illustration.
CAUTION: Each shoe-to-anchor spring has a unique spring load and the spring "a" is painted to prevent erroneous installation.
NOTE: The figure shows the left wheel; for the right wheel, the position in symmetrical.
>B< Adjuster Installation.
Install the adjuster facing the left adjusting bolt to the vehicle front and right adjusting bolt to the vehicle rear.
>C< Self-Locking Nut Installation.
With the special tool, secure the axle shaft and tighten the companion flange self-locking nut.
>D< Flange Nut Installation.
After tightening the flange nut, align with the spindle's indentation and crimp.
>E< Rear Speed Sensor Installation.
Insert a filler gauge between the speed sensor pole piece and rotor teeth and tighten the speed sensor at such position where the gap is as specified below over the entire circumference.
Standard value: 0.2 - 0.7 mm (0.008 - 0.028 inch)
Post-installation Operation:
- Parking Brake Lever Stroke Adjustment.