What are the five main components of an air brake system?

What are the five main components of an air brake system?

5 Basic Components of an Air Brake System in Trucks

• Air compressor.
• Reservoirs.
• Foot valve.
• Brake chambers.
• Brake shoes and drums.

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.

How does an air brake chamber work?

Air brake chambers. Air brake chambers are round metal containers, located at each wheel, where compressed air is converted into mechanical force to apply the brakes and stop the vehicle.

What are the 3 types of air brakes?

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.

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.

What are the 3 systems in air brakes?

What are the valves in a air brake system?

A relay valve is an air-operated valve typically used in air brake systems to remotely control the brakes at the rear of a heavy truck or semi-trailer in a tractor-trailer combination.

What does Cola stand for air brakes?

(Governor CUT-IN) the air compressor governor CUT-IN is at no lower than 85-110 psi.

Which compressor is used in air brake system?

Supply system The air compressor (1) is driven by the engine either by crankshaft pulley via a belt or directly from the engine timing gears. Typically, it is lubricated and cooled by the engine lubrication and cooling systems, but some systems use self-lubricated compressors and/or air-cooled compressors.

What turns on the electrical stop light switch in an air brake system?

5.1. The air brake system does this with an electric switch that works by air pressure. The switch turns on the brake lights when you put on the air brakes.

How does a air brake relay valve work?

In a truck’s air brake system, relay valves get a signal when a driver presses the treadle, which then opens the valve and allows air to enter the brake chamber via air inlet. The diaphragm gets pushed, then the rod, then the slack adjuster which twists to turn the brake camshaft.

What is the function of relay valve in air brake system?

What is the proper way to test the air leakage rate?

Test air leakage rate: With a fully-charged air system (typically 125 psi), turn off the engine, release the service brake, and time the air pressure drop. The loss rate should be less than 2 psi in 1 minute for single vehicles and less than 3 psi in 1 minute for combination vehicles.

What is an air Governor?

The governor (Fig. 20), which is usually compressor mounted, operates in conjunction with the compressor and maintains reservoir air pressure between a predetermined maximum and minimum pressure.