Brake shoes are important components in the vehicle's braking system, and their performance directly affects driving safety. Whether it is a new car assembly or an old car maintenance, it is crucial to install the brake shoes correctly. This article will introduce the installation steps of brake shoes in detail to help technicians and car owners master this key skill.
1. Preparation
Before installing the brake shoes, you need to ensure that the working environment is safe and prepare the necessary tools, such as jacks, wrenches, screwdrivers, grease, etc. At the same time, check whether other parts of the brake system are intact, such as brake drums, brake cylinders, etc., to ensure that there is no wear or damage. If any abnormality is found, the relevant parts should be repaired or replaced before installing the brake shoes.
2. Remove the old brake shoes
Raise the vehicle and fix it: Use a jack to lift the vehicle steadily and fix it with a bracket to ensure that the vehicle does not slide.
Remove the tire: Loosen the tire bolts, remove the tire, and expose the brake drum or brake disc.
Release the brake cylinder: Use a special tool to loosen the brake cylinder bolts and press the cylinder piston back to make room for the installation of the new shoe.
Remove the old shoe: Loosen the retaining ring or bolt that fixes the shoe, and carefully remove the old brake shoe to avoid damaging the brake drum or cylinder.
3. Install the new brake shoe
Cleaning the brake drum: Use a cleaner or sandpaper to remove dust and rust inside the brake drum to ensure that the surface is flat and smooth.
Check the accessories: Confirm that the new brake shoe model matches the vehicle and check for burrs or deformation. If necessary, gently polish the edges to ensure a fit.
Install the shoe: Put the new shoe in place and ensure that the retaining ring or fixing bolt is installed correctly to avoid loosening.
Lubricate key parts: Apply a small amount of high-temperature grease to the part where the shoe contacts the cylinder to reduce friction noise and extend service life.
4. Reset and test
Reset the brake cylinder: Slowly release the cylinder piston to make the new shoe fit tightly against the brake drum.
Install the tire and lower the vehicle: Replace the tire, tighten the bolts, and then lower the vehicle to the ground.
Test the braking effect: Start the vehicle and gently apply the brake several times to ensure that the braking system is working properly without abnormal noise or deviation.
5. Precautions
After installation, it is necessary to perform a run-in. Avoid driving at high speed immediately to ensure that the shoe and the brake drum are fully adapted.
Check the brake system regularly to ensure that the shoe wears evenly and avoid unbalanced braking due to unilateral wear.
Correctly installing the brake shoe can not only improve the braking performance, but also extend the life of the brake system. Following the above steps can ensure a safe and efficient installation process and provide reliable protection for driving safety.
