What are the parts of an air brake system?
The Parts of an Air Brake System
- 1 – Air Compressor. The air compressor pumps air into the air storage tanks (reservoirs).
- 2 – Air Compressor Governor.
- 3 – Air Storage Tanks.
- 4 – Air Tank Drains.
- 5 – Alcohol Evaporator.
- 6 – Safety Valve.
- 7 – The Brake Pedal.
- 8 – Foundation Brakes.
What is the main component of air brake system?
Compressor. The function of the air compressor (Fig. 8) is to build up and maintain air pressure required to operate air brakes and air-powered accessories. Air compressors are either gear driven directly from the engine or belt driven.
How does an air brake system work?
Air brakes work using compressed air instead of hydraulic fluid. The air compressor then pumps the air into the air storage tanks, which store the compressed air until it’s needed. Air pressure is used to apply the service brakes and release the parking brake. There are multiple air circuits in the system.
What 3 systems make up an air brake system?
The air brake system on a tractor-trailer is a complex system that includes storage tanks, a compressor, valves, hoses, and two different kinds of braking systems: service brakes and emergency brakes.
What are 3 air braking systems?
Air brakes are really three different braking systems: service brake, parking brake, and emergency brake. The service brake system applies and releases the brakes when you use the brake pedal during normal driving.
Do all air brake systems have an air dryer?
And to locate the wet tank on an older system, you go into the truck and take note of what the air pressure is on the gauges. Then you go out and start draining tanks. Most modern air brake systems all have ADIS systems – air dryer integrated systems, which essentially means that they have eliminated the wet tank.
How many different circuits are there in an air brake system?
The control system is further divided into two service brake circuits, the parking brake circuit, and the trailer brake circuit. The dual service brake circuits are further split into front and rear wheel circuits which receive compressed air from their individual reservoirs for added safety in case of an air leak.
What is primary and secondary on air brakes?
brakes on the front axle (and possibly one rear axle). Both systems supply air to the trailer (if there is one). The first system is called the “primary” system. The other is called the “secondary” system.