New Arrivals

The compressor builds up & maintains air pressure required to operate air brakes & are either gear driven directly from the engine or belt driven. Most compressors use the truck’s lubrication & cooling systems, some are self-lubricated & some are air cooled. All compressors run continuously while the engine is running, but air compression is controlled and limited by a governor which loads or unloads the compressor. In the loaded stage, air is pumped into reservoirs. In the unloaded stage (with two cylinder compressors), the compressor pumps air back and forth between the two cylinders without supplying the reservoirs. Learn More

Foot control valves are foot-operated & applies air to operate the brakes on all wheels. The amount of air delivered to the brakes is regulated by the driver according to the distance the treadle or brake pedal is depressed. Releasing it exhausts air in the service brakes through its exhaust port. These valves are made in overhead styles with a foot pedal hanging down, or a floor-mounted version with a foot treadle. Learn More

The purpose of the limiting valve is to reduce the air pressure supplied to the front brakes during moderate brake applications. Because there is usually more loads on the rear wheels of a truck compared to the front wheels, the front wheels have more tendency to lock up during a brake application, the limiting valve reduces this tendency These valves are also used to reduce the supply pressure to other auxiliary Equipment. Learn More

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

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