how to check rear drum brakes

How to Check Rear Drum Brakes

Rear drum brakes are a crucial component of your vehicle's braking system. Unlike disc brakes, which are mostly found on the front, drum brakes rely on a different mechanism to slow down or stop the vehicle. Regular maintenance and checks of the drum brakes are essential to ensure they operate efficiently and safely. In this article, we’ll guide you through a comprehensive process to check your rear drum brakes.

Tools Required

Before you start checking your rear drum brakes, gather the necessary tools. You will need

1. A jack and jack stands 2. A lug wrench 3. A screwdriver (flat-head and Phillips) 4. A brake clean spray 5. A flashlight 6. A measuring tool (like a caliper) 7. Work gloves and safety glasses

Step-by-Step Guide

Step 1 Safety First

Before you begin any work on your vehicle, make sure you are in a safe environment. Park your vehicle on a level surface, engage the parking brake, and turn off the ignition. Always wear safety glasses and gloves to protect yourself from debris and sharp edges.

Step 2 Lift the Vehicle

Using a jack, lift the rear of the vehicle. Secure it with jack stands to ensure stability. Never rely on the jack alone, as it can fail and lead to serious injuries.

Step 3 Remove the Wheel

Loosen the lug nuts using a lug wrench, but do not completely remove them yet. Once the vehicle is raised, remove the lug nuts completely and take the wheel off to expose the drum brakes.

Step 4 Inspect the Brake Drum

With the wheel removed, examine the brake drum. Look for signs of wear, cracks, or any other visible damage. Use a flashlight for better visibility. If the drum appears severely worn or damaged, it may need to be replaced.

In some cases, you may need to remove the brake drum to inspect the internal components. To do this, look for retaining screws or clips that hold the drum in place. Once you remove these, gently pull the drum off. You might need to tap it lightly with a rubber hammer if it’s stuck.

Step 6 Check Brake Shoes

With the drum removed, inspect the brake shoes. Check the lining for thickness; if it’s worn down to less than 1/16 of an inch, it’s time to replace them. Look for any signs of cracking, uneven wear, or contamination from brake fluid or grease.

Step 7 Inspect the Wheel Cylinder

Check the wheel cylinder for any leaks. A leaking cylinder can cause brake performance issues and should be replaced immediately. If the cylinder appears corroded or damaged, it is best to replace it as well.

Step 8 Clean the Components

Use brake cleaner to spray the inside of the drum and the brake shoes. This will help remove dust and debris that can affect braking performance. Avoid using compressed air, as it can disperse harmful particles.

Step 9 Reassemble the Drum Brake

After you’ve completed your inspections and any necessary cleaning, it’s time to reassemble everything. Carefully place the brake drum back onto the wheel assembly, ensuring everything is aligned correctly. Replace any retaining screws or clips.

Step 10 Reattach the Wheel

Place the wheel back onto the hub and tighten the lug nuts by hand. Once you have lowered the vehicle back to the ground, use the lug wrench to tighten them fully in a crisscross pattern to ensure even tightening.

Step 11 Test Drive

After reassembling and ensuring everything is secure, take your vehicle for a short test drive. Listen for any unusual noises when braking and ensure the vehicle stops smoothly.

Conclusion

Checking your rear drum brakes is a straightforward process that can save you from costly repairs down the line. Regular inspections of your brake system not only enhance your vehicle’s performance but also ensure your safety on the road. If you come across any severe issues that you cannot resolve on your own, consult with a professional mechanic. Proper brake maintenance is not just about performance; it’s about keeping you and others safe while driving.