Replacing drum brakes involves several steps and requires careful attention to detail. Here’s a comprehensive guide on how to replace drum brakes. Please note that this is a general guide, and the specific steps may vary depending on the make and model of your vehicle. Always refer to your car’s service manual for precise instructions.
Materials and Tools Needed:
- New drum brake shoes
- Drum brake hardware kit
- Brake cleaner
- Brake fluid
- Brake spring pliers
- Brake spoon or screwdriver
- Brake adjusting tool
- Brake fluid catch pan
- Jack and jack stands
- Lug wrench
- C-clamp
- Brake spring tool
- Brake line wrench
- Hammer
- Brake drum micrometer (optional)
Steps:
1. Prepare the Vehicle:
- Park the vehicle on a level surface.
- Loosen the lug nuts but don’t remove them.
2. Jack up the Vehicle:
- Use a jack to lift the rear of the vehicle.
- Secure it on jack stands.
3. Remove the Wheel:
- Use a lug wrench to remove the wheel.
4. Remove the Drum:
- If the drum is stuck, tap it gently with a hammer.
- Once removed, inspect for any cracks or scoring.
5. Release Tension on the Brake Shoes:
- Locate the brake adjuster access hole.
- Use a brake spoon or screwdriver to turn the adjuster to release tension.
6. Remove the Brake Shoes:
- Disconnect the brake shoe return springs using brake spring pliers.
- Remove the hold-down pins and springs.
- Take note of the placement of each part for reassembly.
7. Inspect and Clean:
- Inspect all components for wear and damage.
- Clean the brake assembly with brake cleaner.
8. Install New Brake Shoes:
- Install new brake shoes and the hold-down pins and springs.
- Attach the return springs.
9. Adjust the Brakes:
- Adjust the brake shoes using a brake adjusting tool.
- Rotate the drum to ensure smooth movement.
10. Reinstall the Drum:
- Slide the drum back onto the wheel studs.
11. Adjust the Brake Drum:
- Adjust the brake drum until there’s a slight drag when rotating.
- Use a brake drum micrometer if available.
12. Reassemble:
- Reinstall the wheel and hand-tighten lug nuts.
- Lower the vehicle and tighten the lug nuts in a crisscross pattern.
13. Bleed the Brakes:
- If you opened the brake system, bleed the brakes to remove air.
- Use a brake line wrench to open the bleeder valve.
14. Repeat for the Other Side:
- Repeat the process on the other side.
15. Test Drive:
- Before driving, pump the brake pedal to seat the shoes.
- Test the brakes at low speeds.
Notes:
- Always consult your vehicle’s service manual for specific instructions.
- Be cautious with brake fluid; it can damage paint.
- If you’re not comfortable with brake work, seek professional assistance.
Remember, brake systems are critical for safety, so if you’re unsure or uncomfortable with any step, it’s best to consult a professional mechanic for assistance.
