How to Use a Manual Slack Adjuster

Using a Manual Slack Adjuster is a simple way to check a vehicle's braking system. Slack adjusters are used to compensate for gradual wear of the brake shoe lining and drums. It's a good idea to check and maintain your braking system regularly, so that you can avoid accidents and personal injury.
Slack adjusters are typically found on the axle housing near the wheel. To access the bolt, you need to push the sleeve around it inward. Once the sleeve is pushed inward, you can turn the bolt with a box end wrench.
It is important to use high-temperature waterproof grease. It should be free of fillers and abrasives. It should also have a smooth texture. It should take less than a minute per adjuster to lubricate.
A manual slack adjuster should be checked regularly for wear and tear. This is especially important if you are driving a heavy duty vehicle, such as a tractor trailer. If you do not properly maintain your brakes, you could experience over-stroking.
You should also check the brakes for excessive travel. If you notice the brakes are over-stroking, you can fix this by performing a service brake application. You can also check the system for missing hardware, such as a cotter pin. If you notice any hardware missing, you should replace it immediately.
A Manual Slack Adjuster is usually a flat handle that is attached to the brake chamber. It can be found near the left side of the vehicle. It is designed to adjust brakes by turning a hexagon nut on the slack adjuster body.
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