how to change drum brakes on a trailer

How to Change Drum Brakes on a Trailer

Changing the drum brakes on a trailer can seem like a daunting task, but with the right tools and a little bit of know-how, it can be accomplished safely and effectively. Proper maintenance of your trailer's braking system is essential for ensuring safety on the road. This guide will take you through step-by-step on how to change drum brakes on your trailer.

Tools and Materials Needed

Before starting, gather the necessary tools and materials - New brake drum assembly - Brake shoes - Brake hardware kit (springs and clips) - Brake cleaner - Wheel chocks - Jack and jack stands - Lug wrench - Socket set - Torque wrench - Safety goggles and gloves

Step 1 Prepare the Trailer

Start by parking your trailer on a flat, stable surface. Engage the trailer's parking brake if available. Use wheel chocks to secure the wheels that will remain on the ground, preventing the trailer from rolling.

Step 2 Remove the Wheel

Using your lug wrench, loosen the lug nuts slightly while the tires are still on the ground. Once loose, lift the trailer using a jack and secure it with jack stands to ensure safety. After securing the trailer, remove the lug nuts completely and take off the wheel to expose the drum brakes.

Step 3 Remove the Brake Drum

The next step involves the removal of the brake drum. Look for any retaining screws or clips that might hold the drum in place. Once removed, inspect the drum for any warping or excessive wear. If the drum appears damaged, you will need to replace it. If it’s still in good condition, you can reuse it.

Step 4 Disassemble the Brake Assembly

With the drum removed, you will see the brake assembly. Take note of how everything is assembled; taking photos can be helpful for reference later. Begin by removing the brake springs using a brake spring tool. Carefully detach the old brake shoes from their anchor points and remove any additional hardware like the adjuster.

Step 5 Install New Brake Shoes

Using your reference images, take the new brake shoes and attach them to the anchor points in the same order as the old shoes were arranged. Be careful to position the shoes correctly; they should move freely without binding. Reinstall the brake springs using the brake spring tool to ensure they are tight and secure.

Step 6 Reassemble the Brake Drum

With the new brake shoes in place, it’s time to reattach the brake drum. If necessary, adjust the brake shoes so that they are close to the drum without making contact to ensure smooth operation. Once properly positioned, place the brake drum over the shoes. Be sure it spins freely before moving on.

Step 7 Reattach the Wheel

Place the wheel back onto the axle and hand-tighten the lug nuts. Once the wheel is securely in place, lower the trailer off the jack stands. After the trailer is back on the ground, use the torque wrench to tighten the lug nuts to the manufacturer's specifications.

Step 8 Test the Brakes

Before hitting the road, it’s crucial to test the brakes. Carefully drive the trailer in a safe area to ensure that the brakes are functioning properly. Listen for any unusual noises and check that the brakes grip evenly.

Conclusion

Changing drum brakes on a trailer is a manageable DIY project that can save you money and increase safety during your travels. Regular maintenance and timely brake changes will prolong the life of your trailer and enhance safety. Make sure to consult your trailer's manual for specific instructions and specifications, and when in doubt, don’t hesitate to seek professional assistance. Happy towing!