How to Manually Adjust an Automatic Slack Adjuster

To begin with, when it comes to making manual adjustments on an automatic slack adjuster, here's the step-by-step process. First, carefully open the inspection hole on the dust cover. Then, take note of the rotation direction of the adjusting nut that will result in reducing the brake clearance. In most cases, you'll find it's clockwise. Gently rotate the nut until you notice there's no clearance left and the resistance ramps up noticeably. At this point, stop rotating and then turn it 180 degrees in the opposite direction. And voila, your adjustment is complete.

Differences Between Automatic and Manual Slack Adjusters

Now, let's dive into the key distinctions. Manual slack adjusters demand hands-on adjustment of the brake clearance. On the other hand, automatic slack adjusters are designed with preset brake clearance values specific to different axle models right from the design phase. What's more, during normal use, they can automatically tweak the brake clearance to keep it within the optimal range.

The benefits of automatic slack adjusters truly stand out:

1.Constant Clearance Maintenance: After a period of driving, automatic slack adjusters work their magic to maintain a consistent brake clearance, guaranteeing peak braking performance.
2.Reduced Braking Reaction Time: By cutting down on air consumption, they significantly speed up the braking response, enhancing overall driving safety.
3.Installation Ease: Compared to their manual counterparts, installing automatic slack adjusters is a breeze. They're less complicated and much more convenient and time-efficient.

4.Superior Braking Balance: As the number of axles in a vehicle increases, automatic slack adjusters really shine. They're able to achieve a more balanced braking effect, providing enhanced driving stability.

Issues to Keep in Mind with Automatic Slack Adjusters

However, there are a few things we need to be aware of when dealing with automatic slack adjusters. For instance, once an automatic slack adjuster has been adjusted and reverts back to the first self-adjusting tooth, if you apply the brakes a few more times, it will automatically reset to the factory default clearance. Do note that this won't occur when the brakes are fully released.
Also, it's imperative that all our mechanics fully release the brakes before attempting to remove the wheel hub.

And when adjusting the brakes, if there's no half-grid situation and no smoke appears when water is sprayed on the brakes during downhill driving, we need to clarify whether it's just the first two axles that don't smoke or none of them at all.

Appearance Differences

Visually, there are some telltale signs that set automatic and manual slack adjusters apart. Size-wise, generally, automatic slack adjusters tend to be larger. Structurally, they feature an automatic adjustment module and a spring within. It's the spring's elasticity that enables the worm gear to self-adjust automatically.

In conclusion, whether you're looking at manual or automatic slack adjusters, each has its own set of merits. Our manual slack adjusters offer great value for money and are a perfect fit for vehicles with straightforward requirements, providing a reliable and basic solution for brake clearance adjustment. Meanwhile, our automatic slack adjusters pack a punch with multiple advantages. They might seem unassuming in size, but inside, they're engineered with brilliant designs. With precisely preset brake clearances, they can automatically maintain the right clearance, respond rapidly, are easy to install, and offer excellent braking balance, especially for vehicles with multiple axles.

At CIMC Equilink, we take pride in our quality products. From meticulously selecting the finest materials to adhering to strict manufacturing processes, we're committed to ensuring your driving safety. You can trust our slack adjuster products to embark on a worry-free braking journey.