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The 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 (wear) is in the system, the worm wheel in the mechanism will not return to its original position - it will have indexed. Learn More

When air is compressed, the compressor takes in water vapor with the air, compresses the water vapor & puts it into the system as liquid water. Any water that accumulates in the vehicles air lines damages seals, valves & removes lubricants. In cold weather it can freeze blocking air lines & damaging air system components. The Air Dryer protects the vehicles air systems & components from this by drying the air passing through the air tanks and into the system via the desiccant cartridge. A coalescing cartridge has additional material to trap oil & aerosol particles. Water is then removed from the desiccant via a backflow of dried expanded air. Learn More

A typical vehicle braking system consists of a pair of brake pads, a brake disc and a brake Caliper for each wheel. The pads are fitted in the Caliper with their friction material almost touching the two sides of the brake disc. When the brake pedal is pressed, hydraulic fluid in the Caliper pushes each brake pad against each side of the rotating brake disc. This results in friction which slows down and eventually stops the vehicle. When you think of the number of times this simple action takes place every day, week, month and year – it's no surprise that brake pads suffer gradual wear, so they need replacing regularly. Learn More