how to adjust rear brake drums

Oct . 17, 2024 01:52 Back to list

how to adjust rear brake drums

How to Adjust Rear Brake Drums A Comprehensive Guide

Maintaining your vehicle's brake system is crucial for safety and performance. While disc brakes are common in modern vehicles, many still use rear brake drums. Adjusting these drums is essential for ensuring that your brakes function efficiently, as improper adjustment can lead to decreased performance, uneven wear, and potential safety hazards. Below is a comprehensive guide on how to adjust rear brake drums.

Tools Required

Before you begin, gather the necessary tools and materials - Jack and jack stands - A lug wrench - A brake adjustment tool (or a flathead screwdriver) - Safety goggles - Work gloves

Step 1 Prepare Your Vehicle

1. Safety First Park your vehicle on a flat surface, engage the parking brake, and wear safety gloves and goggles. 2. Lift the Vehicle Use a jack to lift the rear of the vehicle. Secure it with jack stands to ensure stability while you work. 3. Remove the Wheel Use a lug wrench to take off the wheel that is covering the brake drum.

Step 2 Inspect the Brake Drums

Once the wheel is removed, visually inspect the brake drum and components. Look for any signs of wear or damage, such as cracks, grooves, or excessive dust build-up. If the drums are excessively worn, consider replacing them before proceeding.

Step 3 Access the Brake Adjuster

how to adjust rear brake drums

1. Locate the Adjuster Behind the brake drum, there’s a small opening that leads to the brake adjuster mechanism. This is where you will make adjustments. 2. Remove the Drum If needed, gently tap on the drum with a rubber mallet to remove it from the hub.

Step 4 Adjust the Brake Shoes

1. Manual Adjustment Using your brake adjustment tool or a flathead screwdriver, locate the adjuster wheel. Rotate the adjuster to either expand or retract the brake shoes. Turning it clockwise typically tightens the shoes, while counterclockwise loosens them. 2. Check for Proper Clearance Adjust until you feel a slight drag when spinning the drum by hand. There should be some resistance, but the drum should still turn freely without excessive friction.

Step 5 Reassemble Everything

1. Reattach the Drum Once adjustments are complete, reinstall the brake drum onto the hub. Make sure it sits flush and smoothly with the backing plate. 2. Put the Wheel Back On Align the wheel with the lug bolts and hand-tighten the lug nuts. Lower the vehicle with the jack, and then use the lug wrench to securely fasten the nuts in a crisscross pattern.

Step 6 Test the Brakes

It’s crucial to test your brakes after making adjustments. Start the vehicle and gently press the brake pedal a few times to seat the brake shoes properly. Take the vehicle out for a short drive, testing the brakes at low speeds to ensure they engage smoothly and effectively.

Conclusion

Adjusting rear brake drums is a straightforward process that can enhance your vehicle's braking efficiency and prolong the life of your brake components. Regular maintenance, including inspection and adjustment of brake systems, is key to safe driving. If you’re unsure or uncomfortable performing these adjustments yourself, it's always best to consult a professional mechanic to ensure your braking system is in optimal condition.