1-15. BRAKE SYSTEM
Figure 1-15. Brake System
The vehicle is equipped with an air brake system which complies with the Federal Motor Vehicle Safety Standard
(FMVSS) 121. The brake system is made up of a number of components including an air compressor, air dryer,
primary and secondary air tanks, and several valves which control the application and release of the brakes. The air
compressor (1, Figure 1-15) supplies approximately 120 psi (827 kPa) to the air dryer (2). The air dryer contains a
heating element and a desiccant cartridge to remove moisture from the air before it is delivered to the primary air tank
(3) and secondary air tank (4).