Drum brake service and repair involve maintaining and restoring the functionality of the drum brake system, a common type of braking system found in the rear wheels of many vehicles.

Here’s a breakdown of the key steps involved:

Visual Inspection:

• Begin with a visual inspection of the drum brakes. Check for signs of wear, such as grooves or scoring on the brake drums.

Wheel Removal:

• Lift the vehicle and remove the wheel to access the drum brake components.

Brake Drum Inspection:

• Inspect the brake drum for any cracks, warping, or excessive wear. If the drum is damaged, it may need to be replaced.

Brake Shoe Inspection:

• Examine the brake shoes for wear, cracking, or unevenness. Worn-out brake shoes should be replaced.

Hardware Inspection:

• Check the various hardware components, including springs, clips, and adjusters. Replace any damaged or worn hardware.

Cleaning:

• Clean the brake components, including the drum, shoes, and springs, to remove dust, dirt, and brake residue.

Adjustment:

• Adjust the brake shoes to ensure proper clearance. This step is crucial for optimal braking performance.

Wheel Cylinder Inspection:

• Inspect the wheel cylinder for leaks or damage. If there are issues, replacement may be necessary.

Brake Fluid Check:

• Check the brake fluid level in the master cylinder. Top it off if necessary with the recommended brake fluid.

Reassembly:

• Reassemble the drum brake components, making sure all parts are properly positioned and secured.

Brake Bleeding (if needed):

• If the wheel cylinder was replaced or opened during the service, bleed the brake system to remove air and ensure proper brake function.

Testing:

• Perform a road test to ensure that the drum brakes function correctly and there are no unusual noises or vibrations.

Regular drum brake service is essential for maintaining safe and effective braking performance.

It’s advisable to follow the vehicle manufacturer’s recommended service intervals and consult a professional mechanic if you’re not familiar with brake system components and procedures.