How To Loosen Slack Adjuster

A slack adjuster is a component of a vehicle’s braking system that helps to maintain proper tension on the brake pads. Over time, the slack adjuster can become tight and need to be loosened in order to ensure proper braking function. In this article, we will discuss how to loosen a slack adjuster step-by-step.

Step 1: Park the Vehicle

Before attempting to loosen the slack adjuster, it is important to park the vehicle in a safe and secure location. Make sure that the vehicle is on a flat surface and that the brakes are not engaged.

Step 2: Locate the Slack Adjuster

The slack adjuster is typically located near the rear wheels of the vehicle. It is important to locate the slack adjuster before attempting to loosen it. Look for a small, cylindrical component that is connected to the brake line.

Step 3: Remove the Slack Adjuster Cover

Once you have located the slack adjuster, remove the cover that surrounds it. This will allow you to access the adjustment mechanism inside the slack adjuster.

Step 4: Loosen the Slack Adjuster

To loosen the slack adjuster, turn the adjustment mechanism counterclockwise until the brake pads are properly tensioned. You may need to use a wrench or socket set to turn the adjustment mechanism.

Step 5: Test the Brakes

After loosening the slack adjuster, test the brakes to ensure that they are functioning properly. Apply pressure to the brake pedal and listen for any unusual noises or vibrations.

Step 6: Replace the Slack Adjuster Cover

Once you have confirmed that the brakes are functioning properly, replace the slack adjuster cover. Make sure that it is securely in place to prevent any debris from entering the braking system.


Loosening a slack adjuster is an important maintenance task for vehicle owners. By following these step-by-step instructions, you can ensure that your vehicle’s braking system is functioning properly and safely.