WABCO : 4123520290

LEYLAND : EXABRA158

A0002604163

Certified by TÜV and in accordance with the ADR regulations

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EBS 25.80.0133 SLACK ADJUSTER - AUTO - DAF Electrical Testing WABCO : 4123520290The Automatic Slack Adjuster (ASA) is a vital part of the foundation brake acting as a lever, forming the connection between the actuator & the camshaft. When the brake is applied the actuator moves the ASA forward. The worm wheel rotates the camshaft, in turn moving the brake lining toward the brake drum & diss engages when it reaches the drum. When the brake is released the reacting force drops & the ASA mechanism re engages. If excess clearance