Guide to Properly Adjusting Drum Brake Shoes for Optimal Performance

How to Adjust Brake Shoes on Drum Brakes

Drum brakes are a common type of braking system found in many vehicles, especially older models. Proper adjustment of brake shoes is crucial for ensuring effective stopping power and prolonging the lifespan of your braking components. If the brakes are adjusted correctly, they can provide optimal performance and improve safety. Here’s a step-by-step guide on how to adjust brake shoes on drum brakes.

Tools and Materials Needed - Brake shoe adjusting tool or flat-head screwdriver - Socket set - Brake cleaner - Lubricant (high-temperature brake grease) - Safety glasses - Gloves

Step 1 Safety First Before you start, ensure your vehicle is parked on a flat surface, and engage the parking brake. It’s advisable to wear safety glasses and gloves to protect yourself during the process.

Step 2 Remove the Wheel Loosen the lug nuts on the wheel where you will be adjusting the brakes. Then, use a jack to lift the vehicle and place it securely on jack stands. Remove the wheel to access the drum.

Step 3 Remove the Brake Drum Once the wheel is off, you may need to remove the brake drum. If the drum is stuck, tap it lightly with a hammer to break the seal created by rust or debris. Once loosened, slide the drum off to expose the brake shoes.

Step 4 Inspect the Brake Components Before adjusting, inspect the brake shoes, drum, and other components for wear and tear. Replace any worn parts as necessary. Ensure that the surfaces are clean by using brake cleaner to remove dust and debris.

Step 5 Adjust the Brake Shoes Locate the adjusting screw or star wheel, typically found at the bottom of the brake assembly. Using a brake shoe adjusting tool or flat-head screwdriver, turn the adjuster to either expand or retract the brake shoes. Turning it clockwise usually expands the shoes, while counterclockwise pulls them back.

Step 6 Check Shoe Clearance After adjusting, spin the drum to check for interference. The drum should spin freely with a slight drag when you manually turn it. If it spins too freely, adjust the shoes to be closer to the drum.

Step 7 Reassemble Once satisfied with the adjustment, reattach the brake drum. Ensure it sits evenly and securely. Replace the wheel, lower the vehicle, and tighten the lug nuts to the manufacturer’s specifications.

Step 8 Test the Brakes Finally, before driving, pump the brake pedal several times to ensure proper function and performance.

Adjusting brake shoes on drum brakes is a straightforward task if you follow these steps. Regular maintenance not only enhances your vehicle’s braking efficiency but also ensures safety on the road.