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Brake stroke that creeps past its limit at inspection is the problem the Mack Air Brake Automatic Slack Adjuster is built to correct as linings wear. Once installed, the adjuster maintains push rod travel on its own, without manual adjustment between services. Out-of-adjustment brakes are among the most common inspection findings, and they can put a truck out of service until fixed. Replacing a failed unit with the Mack 24330517 helps keep the truck rolling and its brakes balanced across the axle.
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