You may also operate a vehicle equipped with air brakes as a learner while accompanied by. Air brake system tools, air brake system components. None of the different types of brake fluids should be mixed. Air brake system is a type of braking system which uses compressed air to apply the pressure in order to stop the vehicle. The purpose of this book is to help you construct meritor wabco truck and tractor air systems. These moderately priced programs are available in 35 mm slide, v. We take great pride in our ability to provide air brake system technical support to our customers, and many of the original equipment manufacturers offer document libraries that they make available for free via downloadable pdf files. Typical electric brake wiring diagram dexter parts. Compressed air supply the compressed air supplied by the compressor 1 flows to the air dryer 3 via the unloader 2 which automatically controls the pressure within the system within a range of between 7. Letting up on the brake pedal reduces the air pressure and releases the brakes.
Overview the brake system is the most important system on a vehicle from a safety standpoint. A compressor to pump air with a governor to control it. The air lines are not coloured coded except the service and supply lines that connect the semitrailer to the tractor or truck. Pdf a diagnostic system for air brakes in commercial. Since air is compressible so any presence of air inside brake lining does not allow to transmit brake force to apply brakes. Gritt 1062002 diagonal split system in a diagonal split system, one brake line is run to each rear brake and one to each front brake. The air leaving the compressor enters a cooling coil and then the no. A compressor to pump air, with a governor to control the compressor. Bleeding is the process of removal of air from the braking system. Using the triplevalve principle, air builds up inside the brake pipes or air lines, releasing the brakes. Each system has its own air tanks, hoses, lines, etc. Therefore, the system must be free from presence of air. Section 5 air brakes page 1 section 5 air brakes this section covers air brake system parts dual air brake systems inspecting air brakes using air brakes this section tells you about air brakes.
Driving academy car and cdl truck driving school 92,811 views. Parts of an air brake diagram the design of any air brake valve is more easily understood by recognizing some major components and parts. The governor controls when the air compressor will pump air. The parts of an air brake system georgia commercial drivers. Explore vacuum braking system with free download of seminar report and ppt in pdf and doc format. The air compressor pumps air into the air storage tanks reservoirs. The components of an air brake system 12 compressor and governor 12 reservoirs 14 air dryer 15 safety valve 16 foot valve 16 brake chambers, slack adjusters and brake lining 16 wedge brakes 20 disc brakes 21 air overhydraulic brake systems 21 section summary questions 24. Air brake system using exhaust gas automobile ieee project topics, design and analysis, thermal engineering base paper ideas, synopsis, abstract, report, figures, full pdf, fabrication, working details for automobile engineering, diploma, btech, be, mtech and msc college students. The air lines direct compressed air through the air brake system. Bendix valves, compressors, air dryers, wheel end components and more, call 1800 air brake 18002472725 or visit some guys use cheap parts and never have a breakdown.
This helps to reduce the risk of ice in air brake valves and other parts during cold weather. Airbrake components in trucks and buses howstuffworks. The connections are such that the left front and the right rear brake are on one circuit and the right front and left rear are on the other circuit. The main aim of this project is to reduce the work loads of the engine drive to operate the air compressor. Most newer heavyduty vehicles use dual air brake systems for safety. Reduces the risk of ice in air brake components during cold weather. Federal motor vehicle safety standard 121 dictates how this is to be done for overtheroad vehicles.
I feel that it is very important to know the basic components in the system and what they do. It is a kind of friction brake where instead of hydraulicfluid, air is used as the compression media for brake pads. Note, not all valves have all the components shown and described in this booklet. Air brake system heavy duty truck, tractor trailer parts. Next, lets see how george westinghouse got you into this situation. Air brake parts we take great pride in our ability to provide air brake system technical support to our customers. May 28, 2015 cdl training how to pass air brakes exam driving academy part 1 duration. Air braking system components, working principle, application brakes are as important as an engine for an automobile very rightly said as if we require engine to run a vehicle than we also requires brakes to stop it, this statement also resembles with the newtons first law, we all are familiar with.
Home decorating style 2020 for air brake system components pdf, you can see air brake system components pdf and more pictures for home interior designing 2020 4300 at manuals library. Therefore, the air air brake system of the towing vehicle must be in good condition. When air is cooled, some of the water vapor it holds will condense. Recently, bogie mounted brake system bmbs has also. A double check valve is used in the air system when a single function or component must receive air from, or be controlled by, the higher of two sources of. This results in cleaner, drier air being supplied to the air brake system, and aids in the prevention of air line and component freezeups in winter weather. When working on a brake system, always keep in mind that a brake system failure could result in a fatal vehicle. Air lines to allow the pressurized air to flow between the air brake system components. The system actuated to apply this phenomenon is known as pneumatic brake system. The five main components of an elementary air brake system and their purposes are the compressor, reservoir, foot valve, brake chambers, and brake shoes. Basic vehicle control skills test onroad driving vehicle inspection memory guide pdf. Imperial supplies has a large selection on hand, at incredible prices. Piston the piston is the heart of the control valve. May 08, 2015 a brake which uses air as working fluid is a pneumatic brake.
The supply line is fed by the master reservoir and control line gets its signal from the service break system for better braking. Vacuum braking system seminar report, ppt, pdf for mechanical. You can see here, the first part that we need is we need somehow to compress the air in the systemaiwe have an air compressor. An air brake or, more formally, a compressed air brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the vehicle. This is obviously not what an air brake system looks like, but just to give you some idea of the fundamentals of the air brake system. Most modern cars have disc brakes on front wheels and drum brakes on rear wheels and some wheels have disc brakes on all four wheels. A diagnostic system for air brakes in commercial vehicles article pdf available in ieee transactions on intelligent transportation systems 73. Oct 20, 2016 brake application takes place by dropping the pressure in the brake pipe. Pdf a diagnostic system for air brakes in commercial vehicles.
Section 2 the components of an air brake system 11 the components of an air brake system 12 compressor and governor 12 reservoirs 14 air dryer 15 safety valve 16 foot valve 16 brake chambers, slack adjusters and brake lining 16 wedge brakes 20 disc brakes 21 air overhydraulic brake systems 21 air actuatedhydraulic brake system 21. A brake which uses air as working fluid is a pneumatic brake. This diagram shows the components that are used to make the simplest possible. Air brake system parts truck and trailer eastern marine. The following components are necessary to provide air and braking control of a train.
Many of the rvs sold today have air brakes and for most buyers it is there first exposure to an air brake system. Fabrication of air brake system using engine exhaust gas synopsis the aim is to design and develop a brake system based on exhaust gas is called air brake system using engine exhaust gas. Causes behind the spongy brake problems in your car the occurrence of brake problems is very common in cars and it mostly becomes spongy which may be due to air in brake lines, damaged brake lines, lowlevel brake fluid, damaged brake caliper discs and worn cylinder. Foundation brakes are the most common air brake systems found in trucks and buses and work the same way as in rail cars. Although the overall air brake system in a train is complex, it nevertheless can be reduced to two main elements. Hi there, rick talking to you today about the fundamental component of an air brake system. When youre ready to book your written air brake knowledge test or practical air brake demonstration you can call 1844tlk2sgi 18448552744, press two at the prompt or request the exam office, have them book it and pay for it then by credit card. The purpose of an air brake system on heavy duty vehicles is to convert air pressure to mechanical energy to activate the foundation brakes.
Air brake system components drive smart publications. The parts of an air brake system georgia commercial. A dual air brake system has two separate air brake systems which use a single set of brake controls. Air brakes, chapter 7, driving commercial vehicles ritchies training. Scribd is the worlds largest social reading and publishing site. Our goal is to make it easy to find the information you need to maintain your air brake system. Ice inside the system can make the brakes stop working. President william washington believes the abs industry and regulatory agencies are marred by serious corruption. The endorsement a is not required when operating class 3 or 5 vehicles licensed as a farm truck, or trucks with air over hydraulic brakes. Additional air brake system information bendix audiovisual programs bendix offers several audiovisual programs on many bendix air brake devices and systems. The study of this manual, along with practical instruction, is recommended to persons who ar e p r eparing for the completion of the air brake. Pdf brake is an essential feature in order to retard and stop the railway vehicle within minimum possible time.
With thousands of authorized bendix parts outlets across north america, youre never far from quality genuine bendix replacement parts. Of course, some guys actually talk their way out of speeding tickets. The air brake system of a trailer is entirely dependent upon the air brake system of the towing vehicle for its air supply and control. Air brake system components, air brake imperial supplies. Parts of the air brake system high road online cdl training. This here, you can see is the fundamentals of a basic air brake system. The air compressor is connected to the engine through gears or a vbelt. Some guys use cheap parts and never have a breakdown. A basic air brake system capable of stopping a vehicle has five main components. Check the alcohol container and fill up as necessary, every day during cold weather. Pushing the pedal down harder applies more air pressure. To increase safety, most modern car brake systems are broken into two circuits, with two wheels on each circuit.
In the air dryer, the water vapour in the air is extracted and expelled. An pneumatic brake or a compressed air brake system, is a type of friction brake for vehicles in which compressed air pressing on a piston is used to apply the pressure to the brake pad needed to stop the. See the following s to know more details on the causes behind the spongy. The aim is to design and develop a brake system based on exhaust gas is called air brake system using engine exhaust gas. From original operating department training manual 1974. Air brake systems include an air tank that stores sufficient energy to stop the vehicle if the compressor fails. They can be outfitted with abs antilock brake systems, automatic slack adjusters and spring brakes to. The air brake systems are an effective, very durable braking system for use in high mileage or extreme operating conditions. We make it easy to contact us by using the simple email form at the bottom of almost every page, but we also know that there are times when you just need to read the manual. Virtually all of the roadgoing vehicles equipped with air brakes have a graduated release system where a partial.
The parts of these systems are discussed in greater detail below. I components of the pneumatic subsystem of the air brake system 20. Rely on genuine bendix replacement parts to keep your air brake system operating efficiently. Your written air brake knowledge test can also be scheduled. Cdl training how to pass air brakes exam driving academy part 1 duration. In this article, youll learn how air brakes and their components work, how to maintain an air brake system and why you couldnt move that truck. Basic air brake components this diagram shows the components that are used to make the simplest possible air brake system. The first air brake was invented by george westinghouse, he introduced this type of brake for the use in trains. Air brakes are used in large heavy vehicles, particularly those having multiple trailers which must be linked into the brake system, such as trucks, buses, trailers, and. Your fleet can benefit from a potent combination of active safety technologies that can help your drivers in collisions, rollovers, and lossofcontrol. Also explore the seminar topics paper on vacuum braking system with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020.
You, as the mechanic, are trusted to do every service and repair operation correctly. Classification of air brake system the schematic layout shown in figure 4. They can react badly with each other and corrode the brake system. Some air brake systems have an alcohol evaporator to put alcohol into the air system. As a result, the maintenance and requirements have changed considerably. Specify genuine bendix replacement parts every time you service your air brake system. The components of an air brake system 12 compressor and governor 12 reservoirs 14 air dryer 15 safety valve 16 foot valve 16 brake chambers, slack adjusters and brake lining 16 wedge brakes 20 disc brakes 21 air overhydraulic brake systems 21 section summary questions 24 section three how the basic system works 25 basic air brake system 26. Pdf the safe operation of vehicles on roads depends, among other. The msqr5000 is a revolutionary, inexpensive, noncomputerized pneumatic closedloop antilock braking system that dramatically improves safety, and reduces maintenance and insurance costs of vehicles with. Air brakes are effective even with considerable leakage, so an air brake system can be designed with sufficient failsafe capacity to stop the vehicle safely even when leaking. The air compressor is used to maintain pressure for the braking system and the suspension. Mar 08, 2018 the trailer brake system has its own lines for operation and is used when there is a trailer attached to the vehicle. All genuine bendix replacement parts are manufactured to meet original oe specifications to guarantee quality, reliability and proper operating performance. Typical electric hydraulic brake system diagram breakaway switch eh actuator trailer plug electric wires hydraulic lines to trailer brakes dexter hydraulic drum brake or disc brake electric brake controller breakaway battery dexter axle eh units model eh pn k7165000 for drum brakes only model eh 1600 pn k7165100 for disc.
If you want to drive a truck or bus with air brakes, or pull a trailer with air brakes, you need to read this section. Air brake system is a type of braking system generally used in heavy commercial vehicles or vehicles which require some really powerful and efficient braking system. You apply the brakes by pushing down the brake pedal also called the foot valve or treadle valve. The basic components of a simple air brake system show ing the brakes applied. Distributor valve is the most important functional component of the air brake system and is also sometimes referred to as the heart of the air brake system. One system typically operates the regular brakes on the rear axle or axles. This section covers air brake system parts dual air brake systems inspecting air brakes using air brakes there are many parts to an air brake system.