The vehicle is safer when all the brakes are better adjusted, all the time. That's what S-ABAs bring to the party.

Automatic Brake Adjuster is one of the most critical items in any air brake system. It is used on commercial vehicles having Air Brakes with 'S' cam shaft. The basic function of brake adjuster is to transmit the braking torque to the 'S' cam and to facilitate adjustment of the clearance between brake lining and the brake drum which is caused due to the wearing of brake lining.

The automatic brake adjuster is mounted on the 'S' cam shaft and one end is connected to the push rod of the brake chamber. When the brake pedal is pressed, the air is let into the brake chamber and pushes the push rod out. This in turn moves the adjuster. Since, it is mounted on the 'S' cam shaft, the shaft rotates and forces the brake shoes away from another and presses against the brake drum. Thus the brake is applied.

When the gap between the brake drum and the brake lining is increased due to the brake lining wear; the automatic adjuster senses & adjusts the gap automatically. ABAs adjust the brakes while the vehicle is being used, thus helping to maintain optimum vehicle braking capability at any instant given in time.

Haldex with its proven technology is a world leader in producing Automatic Brake Adjusters since 1967. Haldex Adjusters are the first choice worldwide for DAF, MAN, Mercedes Benz, ROR Rockwell, Renault, Scania, Volvo, etc. Haldex Automatic Brake Adjuster (ABA) is the most specified preference in the world with over 50 Million nos. in use today. The superior design for Haldex ABA makes it the adjusters of the first choice of major vehicle manufactures and makes Haldex the world's largest manufacturer of ABAs in the world's covering more applications than any other brand.

The Haldex S-ABA; Self Setting Automatic Brake Adjuster is the clearance sensing brake adjuster rather than stroke sensing adjustment. This is a more accurate sensing and less susceptible to heat.

S-ABA is the first automatic brake adjuster which is both self-setting and flexible, it offers unrivalled ease, faster & error free installation. SABA is installed on each S-cam shaft (replacing the standard manual slack adjusters), and continuously monitors the gap between the brake linings and the brake drum. Any excessive clearance in the brakes is automatically adjusted for, thus ensuring maximum braking efficiency on all vehicle wheel stations.

S-ABA adjusts slower that other ABAs enabling it to run at closer tolerances to the drum, which in turn offers, improved brake reactions times. The Haldex Automatic Brake Adjusters maintains the optimum lining to drum clearance. This ensures the shortest stopping distance possible for a safer, more reliable vehicle.

	S-ABA functions correctly whatever the position of the control arm
	No setting position of control - arm required.
	Faster and simpler installation.
	Less risks for in-correct installations
	Self-setting means less time consuming adjustments during installation.