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Slack adjuster tool driver#
Slack adjuster tool manual#

The stroke adjuster measures the stroke of the pushrod. There are two types of slack adjusters: the stroke and clearance adjuster.

Ensure the adjustment arm is firmly fitted to the bracket.Īutomatic slack adjusters are fast becoming a more reliable and consistent operational part, which is why Wheelco recommends using this type of slack adjusters.

Then rotate the worm wheel 90 degrees before refitting.

When re-lining brakes, remove the slack adjuster from the S-cam.

If you do, internal slack adjuster damage may occur.

Do not manually adjust automatic slack adjusters after initial adjustment unless you are doing a complete brake overhaul.

Slack adjuster tool manual#

Therefore, it does not require periodic manual adjustment and is highly recommended not to adjust unless absolutely necessary or in an emergency situation. They automatically adjust for the gradual brake lining wear. Automatic Slack AdjustersĪutomatic Slack Adjusters operate in the same manner that manual slack adjuster does but with one key difference. Should you require any additional information, contact Wheelco customer service to assist you. Often, improper adjustment is due to operator negligence. Out-of-adjustment brakes is one of the most common problems found in roadside inspection.īe safe and check the slack adjuster movement.If it moves more than 1 inch or 25mm where the pushrod is attached it most likely requires adjustments Ensure the parking brake if OFF so can move the slack adjusters.

Park the truck or trailer on level ground.

Manual Slack Adjuster Periodical Inspection Procedure: However, if you are driving a vehicle that predates this regulation, manual adjusters require fine-tuning. Manual Slack AdjustersĪfter 1994, all vehicles made have automatic slack adjusters installed. When in doubt, call our service technicians for further assistance. However, this is just a general guideline since truck braking systems vary. At Wheelco, we suggest adjusting your manual slack adjuster approximately every 10,000 miles. Automatic slack adjusters have an adjusting mechanism that adjusts for brake lining wear. However, manual slack adjuster periodically needs to be adjusted to properly function and operate at peak performance and compensate for lining wear. When the brake lining or brake pad wears, the gap between it and the brake drum increases. Slack Adjuster Preventative Maintenance and Inspection The brake shoes press against the brake drum, applying the brake. Once this happens, it rotates the slack adjuster which forces the brake shoes out.

Slack adjuster tool driver#

So, when the driver presses down on the brake pedal, air is forced into the brake chamber and shoves the push rod out. One end is connected to the brake chambers’ pushrod. The slack adjuster assembly transmits the braking torque to the S-cam and facilitates the adjustment of clearance between the brake lining (brake pad) and the brake drum. The slack adjuster is the component that is used to adjust the brakes using transfer of torque by converting convert linear motion into the rotary motion of the S-cam. What is a slack adjuster and why is it important to your vehicle’s braking system? We get this question a lot at Wheelco. Everything You Need To Know About Slack Adjusters