Table of Contents
What are the 6 fundamental components of the air brake system?
The six fundamental components are:
- compressor,
- governor,
- air tanks,
- airlines,
- brake pedal,
- foundation brakes.
What air brake line goes to back of the trailer red or blue?
Air and Electrical Lines The red line is the air line for the trailer’s emergency brake. The green line is the electrical line. The blue line is the air line for the trailer’s service brake. Connect these lines to the corresponding couplers and socket on the trailer before moving the trailer.
What side does the red Gladhand go on?
Red is your supply line, as Polar says, it supplies air to the trailer tanks and is used to release the parking brakes on the trailer. Usually the glad hands ( connectors) are colour coded, red to red etc… but if not the supply ( RED) is normally on the driver side of the trailer , or rear of tractor..
What is primary and secondary on air brakes?
The first system is called the “primary” system. The other is called the “secondary” system. See Figure 5.4. Before driving a vehicle with a dual air system, allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems.
What are the major components of the 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 can you test that air flows to all trailer?
Check That Air Flows to All Trailers. Use the tractor parking brake and/or chock the wheels to hold the vehicle. Wait for air pressure to reach normal, then push in the red “trailer air supply” knob. This will supply air to the emergency (supply) lines.
What psi do you need to have to release the brakes?
With a fully-charged air system (typically 125 psi), turn off the engine, release the parking brake, and time the air pressure drop. The loss rate should be less than two psi in one minute for single vehicles and less than three psi in one minute for combination vehicles.
What time is on the electrical stop light switch in an air brake system?
The stop light switch (Fig. 22) is an air-signaled electrical switch which is turned on any time a brake application is made. The switch is usually connected to a double check valve and can be plumbed anywhere in the application side of the circuit.
When backing under a trailer you should?
When backing a tractor under a trailer you should: Always use the lowest reverse gear.
When backing up under a trailer you should line up?
A Directly in front of the trailer. Step 3: Put the tractor directly in front of the trailer. (Never back under the trailer at an angle because you might push the trailer sideways and break the landing gear.)
What are the parts of a trailer brake system?
• Afoot brake valve and often an additional hand- operated trailer brake control valve • Brake actuators orrotochambers, to change the applied air pressure into a push-rod force which operates the foundation brakes (air disc, S-Cam, etc.) • Quick release valvesto assist in releasing the brakes quickly
What is emergency brake control on a trailer?
The current technology in trailer spring (emergency) brake control is a valve that can safely manage the supply of air for service and parking brakes using just a single large reservoir. Bendix SR-5 valve uses air pressure from the trailer supply line rather than from any reservoir in this two reservoir example.
Where can I find more info about trailer air brake valves?
More info: visit www.bendix.com 1-800-AIR-BRAKE (1-800-247-2725) Trailer Spring Brake Valves Trailer spring brake valves are designed for use in trailer air brake systems.
What is an air-assisted hydraulic braking system?
This system fitted with an emergency mechanical brake, which can be used when air supply fails the air brake system, which is called an air-assisted hydraulic braking system.