replacing shoes on drum brakes

Replacing Shoes on Drum Brakes A Comprehensive Guide

Drum brakes are a common braking system used in many vehicles, especially in older models and lighter weight vehicles. Unlike disc brakes, drum brakes utilize a set of shoes that press against a rotating drum to create friction, slowing down the vehicle. Over time, these brake shoes can wear out, leading to diminished performance and unsafe driving conditions. Therefore, knowing how to replace shoes on drum brakes is essential for vehicle maintenance. This article will walk you through the steps involved in this process, ensuring you can tackle this task confidently and safely.

Understanding Drum Brake Components

Before diving into the replacement process, it is helpful to familiarize yourself with the key components of drum brakes

1. Brake Drum The cylindrical component that rotates with the wheel. 2. Brake Shoes Curved pieces that press against the inside of the brake drum to create friction. 3. Wheel Cylinder A hydraulic component that pushes the brake shoes outward against the drum. 4. Return Springs These return the brake shoes to their original position when the brakes are not engaged.

Tools and Materials Needed

To replace the brake shoes, you will need the following tools and materials

- Jack and jack stands - Lug wrench - Brake cleaner - Screwdriver - Wrench set - Replacement brake shoes - Brake grease - Safety glasses

Step-by-Step Guide to Replacing Drum Brake Shoes

1. Safety First Begin by ensuring your vehicle is parked on a flat surface. Activate the parking brake and wear safety glasses to protect your eyes from debris.

2. Lift the Vehicle Use the lug wrench to loosen the lug nuts on the wheel where you will replace the brake shoes. Then, lift the vehicle with a jack and secure it with jack stands. Remove the wheel to access the drum brake assembly.

3. Remove the Brake Drum Inspect the brake drum for any retaining screws. If present, remove them and gently pull the drum off. Sometimes, the drum may be stuck due to corrosion. In such cases, you can tap it lightly with a hammer to loosen it.

4. Inspect the Assembly Examine the brake shoes, springs, and other components for wear or damage. Take a picture or make a note of the assembly for reference when installing the new shoes.

5. Remove Old Brake Shoes Detach the return springs and remove the old brake shoes from their mounting points. Be cautious as the springs are under tension.

6. Clean the Components Use brake cleaner to clean the brake drum and the surrounding components. This will remove dust and debris that can affect performance.

7. Install New Brake Shoes Place the new brake shoes in their designated positions. Reattach the return springs using pliers, ensuring they are tensioned correctly.

8. Reinstall the Brake Drum Carefully slide the drum back onto the wheel hub. Ensure it spins freely without rubbing against the shoes.

9. Reattach the Wheel Place the wheel back on the hub, hand-tighten the lug nuts, lower the vehicle, and then use the lug wrench to fully tighten the nuts in a crisscross pattern.

10. Test the Brakes Start the vehicle and slowly apply the brakes a few times to ensure the new shoes are properly seated and functioning. Listen for any unusual sounds and check for any abnormal resistance.

Conclusion

Replacing the shoes on drum brakes is a manageable task for anyone with basic mechanical skills. By following the steps outlined above, you can efficiently replace your brake shoes and ensure your vehicle operates safely. Regular maintenance of your braking system is crucial for your safety and the longevity of your vehicle. If at any point you feel the task is beyond your abilities, don’t hesitate to seek professional assistance. Remember, your brakes are one of the most critical safety features of your vehicle, and maintaining them properly can prevent accidents and ensure peace of mind on the road.