If your parking brake isn't working correctly, the problem likely lies within the system itself, and requires professional attention. Here's why and what you should do:
* Internal Adjustment: The parking brake mechanism *does* have an automatic adjuster. It's designed to compensate for wear on the brake shoes. However, this self-adjusting mechanism can fail or become gummed up.
* Common Problems: The most common issues include:
* Worn brake shoes: The brake shoes themselves are worn out and need replacement.
* Clogged mechanism: Dirt, rust, or corrosion can prevent the adjuster from working properly.
* Broken cables or components: Internal components within the parking brake assembly may have broken.
* Low brake fluid: While less likely to be the *sole* cause of parking brake failure, low brake fluid can impact the system's overall effectiveness.
What you should do:
Instead of trying to adjust it yourself (which is likely impossible and could cause more damage), you should:
1. Check your brake fluid level: Make sure your brake fluid reservoir is full. If it's low, have it checked for leaks.
2. Take it to a mechanic: A qualified mechanic can diagnose the problem correctly. They have the specialized tools and knowledge to assess the condition of the brake shoes, the internal mechanism, and cables to determine the necessary repairs, which might include:
* Replacing the brake shoes: This is the most common solution.
* Cleaning and lubricating the mechanism: This might resolve issues caused by corrosion or dirt.
* Replacing cables or other internal components: This will be necessary if parts are broken or severely damaged.
Attempting to repair the parking brake yourself without the proper tools and knowledge can be dangerous. A faulty parking brake can compromise your safety. Get it checked by a professional to ensure it's working correctly.
