Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Drum Brake System: Service and Repair

REAR DRUM BRAKE





COMPONENTS

REMOVAL
1. Remove the wheel.





2. After removing the rear wheel bearing nut, remove the rear hub with the brake drum.
3. Remove the shoe return louver spring and shoe hold down spring,





4. Remove the shoes and adjuster as an assembly.

INSPECTION








1. Measure the inside diameter of the brake drum. Check the runout of the brake drum by using a dial indicator.








2. Measure the brake shoe lining thickness.
3. Inspect the brake lining and drum for proper contact.
4. Inspect the wheel cylinder outside for excessive wear 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-own pin.





3. Assemble the return spring by pressing the push rod,
4. After assembling the drum components, pull the parking brake lever to end several times,