Brake Shoe: Service and Repair

REMOVAL





1. Remove the wheel, then remove the brake drum.

NOTE: If the brake drum is difficult to remove, insert bolts into the threaded holes of the drum, then remove it.

2. After removing the rear hub bearing flange nut, remove the rear hub with the brake drum.





3. Remove the abut end shoe spring, the cylinder end shoe spring, the shoe hold down spring.
4. Remove the shoes and adjuster as an assembly.

INSPECTION





1. Measure the brake drum inside diameter.
Check the runout of the brake drum using a dial indicator.
Inside diameter
Standard value 228.6 mm (9 inch)
Service limit 229.6 mm (9.04 inch)





2. Measure the brake shoe lining thickness.
Lining thickness
Standard value 4.45 mm (0.18 inch)
Service limit 1.5 mm (0.059 inch)





3. Inspect the brake lining and drum for proper contact.
4. Inspect the wheel cylinder outside for excessive corrosion and damage.
5. Inspect the backing plate for wear or damage.

INSTALLATION





1. Apply the specified grease to the locations indicated in the illustration and to each component.
- Shoe and backing plate contact surfaces
- Shoe and anchor plate contact surfaces
Recommended grease: Multipurpose grease SAE J310, NLGI No. 2





2. Install the shoe hold down pin.





3. Assemble the return spring with the push rod shortened.

CAUTION: Split pin and hub cap must not be reused.

4. Check the outside dimension and correct it using auto-adjuster (227.6 - 228.1 mm).
5. Do the parking brake stroke adjustment after assembling lining.