Drum Brake System: Adjustments

Fig. 1 Measuring Brake Shoe To Brake Drum Clearance.:

Measure brake drum inside diameter and maximum diameter of brake shoes using brake shoe clearance gauge, Fig. 1. Turn adjuster so that brake shoe diameter will be .012-.024 inch (.3-.6mm) smaller than brake drum inner diameter.

Raise and support rear of vehicle, ensure rear wheels move freely. Remove brake shoe adjusting hole plug from backing plate, then using a suitable brake tool, expand adjuster until wheel is locked. Working through backing plate, insert a narrow tool to move self-adjuster lever away from adjuster, then loosen adjuster wheel approximately 10-12 notches. Install brake shoe adjusting hole plug.