Dec 16, 2017 namaskar dosto aj hum is video me bat karenge ke air brakes bare mai yaha par mai apse bat karunga air brake k principle and layout k barey mai. Namaskar dosto aj hum is video me bat karenge ke air brakes bare mai yaha par mai apse bat karunga air brake k principle and layout k barey. Brakes apply too slowly brakes need adjusting or lubricating. The air leaving the compressor enters a cooling coil and then the no.
Identify the components of the 26l locomotive brake system used on single and multiple unit operations. From original operating department training manual 1974. Ccb26 offers short line railroads and switchyards an affordable, reliable upgrade for their older air brake systems. The five main components of an elementary air brake system and their purposes are the compressor, reservoir, foot valve, brake chambers, and brake shoes and drums or brake rotors and pads you must have an endorsement a specified on your licence to operate a vehicle equipped with an air brake system. 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. Wabtec corporation 30 isabella street pittsburgh, pa 15212 usa phone.
Do not increase diesel engine rpm to maintain main reservoir pressure unless the. The authors in 10 refer to various friction brake systems used in mechanical braking. A dual air brake system has 2 separate air brake systems, which use a single set of brake controls. Air brake system 1 pressure will correspond to the position of the handle between min and full service and will be zero at emergency. George westinghouse invented triple valve and on got patented on march 5, 1872 and on this todays air brake system of train is based introduction the air brake is the standard, failsafe, train brake used by railways all over the world.
The air pressure gauge tells you the adequacy of the air system. Piston the piston is the heart of the control valve. The 26l brake system page 2 general forums railpage. Brake systems an efficient and reliable brake system is needed for stoppage of vehicle in minimum possible distance. Locomotive air brake manual yale glc manual westinghouse air brake south australian railways chassis train air brake data blueprint home. The cooling effect of the coil and the reservoir itself will remove about. Air brake manual government of newfoundland and labrador. The mu2a valve is located on the lower left hand side of the air brake stand. In 90s some of the locomotives were equipped with irab1 brake system, which are suitable for only air braked trains. The system should be such that vehicle should not experience jerks and should stop smoothly. The 26l brake equipment is a combination automatic and independent locomotive brake of modern design which incorporates all of the operating features necessary for the control of freight and passenger train braking systems. In 90s some of the locomotives were equipped with irab1 brake system, which are suitable for only airbraked trains.
Note, not all valves have all the components shown and described in this booklet. In the wake of the lacmegantic rail disaster, michael guy from the toronto railway museum explains what it could take for a typical trains air brake system to fail. Additional air brake system information bendix audiovisual programs bendix offers several audiovisual programs on many bendix air brake devices and systems. 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 airoverhydraulic brake systems 21 airactuatedhydraulic brake system 21 airboosthydraulic brake system 22. The railway brake system should have the following features.
Some air brake systems have an alcohol evaporator to put alcohol into the air system. Nov 25, 2010 i have been having a look around for information on the the 26l brake system. Reading air brake diagrams tp2006 september 2001 4 part i. Pbr offers a range of replacement product solutions including hydraulic cylinders and brake calipers including loaded calipers, unloaded calipers and piston housings. Freight train air brakes of north america tcrc 320.
This helps to reduce the risk of ice in air brake valves and other parts during cold weather. The 26l brake system page 1 general forums railpage. The air hoses you see at the couplings between the cars are part of this brake pipe. C 2 relay valve it is a high capacity relay air valve. In yards where trains are made up, when unattended locomotives are used to charge the brake. Therefore, the air air brake system of the towing vehicle must be in good condition. Muing 24rl with 26l or 6bl railway preservation news. When air is cooled, some of the water vapor it holds will condense.
The brake cylinder may act directly on the block or through a mechanical linkage system is designed so it fails safe engineering mechanics and hydraulics block brake pressed on a wheel is like an inside. This reservoir is charged with compressed air from the locomotives air compressor via the train line brake pipe. Welcome to wabtecs technical documentation library. All air brake equipment shall be completely compatible with 26c26l air brake equipment, currently in. The 26nl brake equipment is a new york air brake company arrangement of modern standard air brake devices resulting in simple, but flexible brake equipment for switching and road locomotive service. One system typically operates the regular brakes on the rear axle or axles. Ice inside the system can make the brakes stop working. Brakes apply too slowlybrakes need adjusting or lubricating. As the designation 26nl implies, the basic equipment utilizes the 26c brake valve as the cab. It gets pilot air from sa9 a9 and supply mr air to the brake cylinders at a. None of the different types of brake fluids should be mixed. You do not have the required permissions to view the files attached to this post. Do not charge a trains air brake system with more than one automatic brake valve cut in.
This equipment employs as the major components a 26c brake valve, a 26f. This equip ment employs as the major components a 26c brake valve, a 26f. Improve the air brake skills of mechanics with little or no knowledge of the 26l air brake system and its components reduce out of service time and repair costs for the locomotive fleet reduce the guesswork on air brake problems. Additional airbrake system information bendix audiovisual programs bendix offers several audiovisual programs on many bendix airbrake devices and systems. It gets pilot air from sa9 a9 and supply mr air to the brake cylinders at a pressure equal to the. They can react badly with each other and corrode the brake system. Most locomotive units equipped with 26l brakes have flow meters. All air brake equipment shall be completely compatible with 26c 26l air brake equipment, currently in use in intercity rail passenger service. This booklet will cover the most common air brake system designs from 1975 to 2006. Each system has its own air tanks, hoses, lines, etc. The trainee will be able to locate, name, and describe the various manual cutout cocks associated with the various locomotive brake equipment. During a manual brake valve emergency brake application on a lead unit. A locomotive air brake question for the pros author.
Adequate numbers of maintenance manual covering schedule maintenance. Diesel locomotive twin pipe dual brake system introduction. 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 therefore, the air air brake system of the towing vehicle must be in good condition. Parts of an air brake diagram the design of any air brake valve is more easily understood by recognizing some major components and parts. Understand the inspections, their application and when they should be done. In addition to the trainee demonstrating his ability to use the air brake equipment on the simulators he will be able to pass a written test, making a score of at least 80%. During the normal operation of the brake system each port, pas sage, valve, etc. These moderately priced programs are available in 35 mm slide, v. In twin pipe graduated release air brake system fig. Air compressor and air system pressure you should be aware of common air pressure thresholds of your motorcoachs brake system. Here is a pdf of an older air brake section that covers hooking 6 and 24 type equipment to 26l systems. The trainee will be able to locate, name, and describe the various manual cutout cocks. Most heavyduty vehicles use dual air brake systems for safety. In 80s locomotives were switched over to 28lav1 brake system for use both in vacuum and air braked trains.
912 285 1142 70 1208 690 1138 816 1424 66 336 593 1200 267 309 1150 1068 1336 1132 721 805 711 528 1178 906 390 640 1236 1288 939 1108 974