which way to turn adjuster on drum brakes

Adjusting Drum Brakes Which Way to Turn the Adjuster?

Drum brakes are a reliable and common braking system found in many vehicles, particularly in older models and some modern economy cars. Unlike disc brakes, drum brakes operate by forcing brake shoes against the inner surface of a spinning brake drum. Adjusting the brake shoes ensures they are properly aligned with the drum for optimal performance. When it comes to adjusting the brake shoes, understanding which way to turn the adjuster is crucial for effective maintenance.

Understanding the Brake System

Before diving into the adjustment process, it is important to understand the components involved. The key components of drum brakes include the brake drum, brake shoes, return springs, and the adjuster mechanism. The adjuster, usually located between the brake shoes or at the top of the assembly, is responsible for maintaining the proper distance between the shoes and the drum.

The Importance of Proper Adjustment

Proper adjustment of drum brakes is essential for several reasons. Firstly, it ensures that the brake shoes engage the drum effectively, providing the necessary stopping power. Poorly adjusted brakes can lead to diminished braking performance, increased wear on the components, and even safety hazards. Over time, as the brake shoes wear down, they need to be adjusted closer to the drum to maintain efficiency. This prevents excessive pedal travel and improves overall braking response.

When it comes to adjusting drum brakes, the direction in which you turn the adjuster plays a pivotal role. Typically, drum brake adjusters can be turned in two possible directions clockwise or counterclockwise. The correct direction varies depending on the specific vehicle design and the type of adjuster used.

1. Clockwise Adjustment In most cases, turning the adjuster clockwise will expand the brake shoes, pushing them closer to the drum. This adjustment is often necessary when the brake shoes have worn down and require setting to the correct position for effective contact with the drum.

2. Counterclockwise Adjustment Conversely, turning the adjuster counterclockwise usually retracts the brake shoes, moving them away from the drum. This adjustment may be necessary if the shoes are too close to the drum, which can lead to dragging brakes and increased heat buildup.

Checking the Adjustment

After adjusting the brakes, it is vital to check if the shoes are properly aligned with the drum. This can be done by spinning the drum by hand; it should rotate freely with only a slight drag from the shoes. If the shoes are too far away, there will be excessive space, and if they are too close, there will be resistance. The ideal scenario allows the drum to rotate without obstruction while still being able to engage the shoes when the brake pedal is pressed.

Conclusion

Adjusting drum brakes is a straightforward process, but attention to detail is paramount. Knowing whether to turn the adjuster clockwise or counterclockwise can make a significant difference in the braking system's performance. Regularly checking and adjusting your drum brakes contributes to a safer driving experience, prolongs the life of your brake components, and ensures you have reliable stopping power when you need it most. Always refer to your vehicle's service manual for specific instructions related to your make and model, and if in doubt, seek assistance from a professional mechanic to ensure your brakes are in top working condition.