WABCO : 4721950020

Light functions: 5 - with indicator/with position light/with low beam/with high beam/with daytime running light (LED)

Number of mounting bores: 3 - Flange Ø: 89 - Pinion Home Position: 21

0 Length [mm] 86

EBS EBS4420 SLACK ADJUSTER - AUTO - ZF bundle WABCO : 4721950020The 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