Air brake endorsement permits the holder to drive vehicles equipped with air brakes in class of vehicle for which the driver is licenced. Brake lag the time air takes to travel through a properly maintained air brake system, about 410 of a second. The study of this manual, together with practical instruction, is recommended for a. Components are introduced and shown with typical system diagrams to show where they are used. The purpose of an air brake system on heavy duty vehicles is to convert air pressure to mechanical energy to activate the foundation brakes. Download a pdf copy of fluid power schematic symbols. The five main components of an elementary air brake system and their purposes are the compressor, reservoir, foot valve, brake chambers, and brake shoes. For additional information on calculating total air volume and brake chamber rated air volumes, refer to liftable axle air system requirements section in this bulletin.
Please consult your local distributor for those items you may require. Piston the piston is the heart of the control valve. Air brake manual government of newfoundland and labrador. Peterbilt motors company is an american truck and truck tractor manufacturer. In this thesis, a mathematical model for an air brake system in the presence of leaks is. Dodge ram 2006 factory service manual introduction.
The new manuals tells all about the toyota land cruiser. This endorsement permits the holder to drive vehicles equipped with air brakes in the class of vehicle for which the driver is licensed. Air brake system parts dual air brake systems inspecting air brakes using air brakes there are many parts to an air brake system. These questions and answers were written by professional authors with extensive knowledge and experience in the. Mu2a valve the mu2a valve is located on the lower left hand side of the air brake stand. Truck brake diagram air brake brake system heavy truck eaton fuller speed air line diagrampdf free download here. Air brake systems are widely used in commercial vehicles such as trucks, tractor. Federal motor vehicle safety standard 121 dictates how this is to be done for overtheroad vehicles. To adjust manual or automatic slack adjusters, the. The purpose of this handbook is to introduce you to the knowledge and skills you need to drive a vehicle with air brakes in a safe and lawful manner. Supply or emergency line the air lines in the trailer air brake system that charge the trailer air reservoirs and apply and release the parking or emergency brakes using the trailer pushpull valve in the tractor. The air brake manual has been prepared by nova scotia department of service nova scotia and municipal relations to assist drivers in understanding the basic operation and function of an air brake system. Semi air bag schematic air brake system animation bus air pdf.
Note, not all valves have all the components shown and described in this booklet. Class 3 or 5 vehicles licensed as a farm truck, or trucks with air over hydraulic. Pdf the safe operation of vehicles on roads depends, among other things, on a properly functioning brake system. The air compressor pumps air into the air storage tanks reservoirs. Eb 04 download only at this time this is an installation guide for the ccm on the gen 3 disc 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. Permits the holder to drive vehicles equipped with air brakes in class of vehicle for which the driver is licenced.
The homeland of this car is japan, which means that it deserves the closest attention of motorists. A note can also supply information that will help to make service quicker and easier. Tb9230042620 hydraulic and air hydraulic brakes preventive maintenance includes important information. Frictional forces slow the wheels and the vehicle comes to a stop. The air brake manual has been prepared by manitoba public insurance, to assist drivers in understanding the basic operation and function of an air brake system. This equip ment employs as the major components a 26c brake valve, a 26f. 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.
Air brakes test practice introduction this study guide contains one hundred ten commercial drivers license air brakes test questions and answers. When an automatic brake application is made, the independent brake must be bailed off for 4 seconds per loco motive in the consist and until the brake pipe air quits exhausting. This manual may contain attachments and optional equipment that are not available in your area. Wagner lockheed brakes manual for repair and maintenance of hydraulic brake systems illustrated. Requirements for air brake endorsement must complete an air brake written test. Bendix ppdc park control valve manual pdf download. View and download honda gl1800 service manual online. A manual release handle is provided at the bottom of the distributor valve by which the brake in a particular wagon can be released manually by. Reading air brake diagrams tp2006 september 2001 4 part i. Air brake examinations are conducted at drivetest centres. Air brake system troubleshooting suspension and brake.
As a dot 3 or dot 4 brake fluid absorbs water, its boiling point decreases. Learn about brakes and braking, components of an air brake, how the basic system works, trailer systems, dual air systems and pretrip inspection. Also, manually pulling the button the spring brakes for normal vehicle operation. The safety valve protects the air brake system against excessive air. Does the 4700 model have the same electrical architecture as the 48004900 models. Check out these other fluid power informational links for more information. The study of this manual, together with practical instruction, is recommended for a driver who is preparing for. Air system piping diagrams pre121 trailer air systems. Data code 148035 provides a fast idle switch interface tied to the parking brake see schematics on page 1b11. The air brake manual has been prepared by the department of public safety licensing and records to assist drivers in understanding the basic operation and function of an air brake system. Freightliner air brake system schematic free pdf file. The safe operation of vehicles on roads depends, among other things, on a properly functioning brake system. It can absorb water from air, that is why we should avoid opening the cars brake fluid reservoir and the container of the brake fluid should be tightly sealed. A note indicates an operational, procedure or instruction that is important for proper service.
This is a complete air brake version, in which only. The air brake system is one of the critical components in ensuring the safe operation. The study of this manual, together with practical instruction, is recommended for a driver who is preparing for the air brake examination. Basic air brake system schematics total truck parts inc. System of the towing vehicle for its air supply and control. Bendix commercial vehicle systems document library. To adjust manual or automatic slack adjusters, the operator must hold an s brake endorsement. Braking distance the actual distance a vehicle travels after the brake is applied until the vehicle stops. Park the vehicle on a level surface, apply the system pressure has been depleted. The purpose of this book is to help you construct meritor wabco truck and tractor air systems. This symbol indicates that you must tighten fasteners to a. This twelvesection handbook provides an introduction to the use and operation of bendix air brake systems and devices. This helps to reduce the risk of ice in air brake valves and other parts during cold weather.
Parts of an air brake diagram the design of any air brake valve is more easily understood by recognizing some major components and parts. Partial systemdrawings, displayed throughout the manual, assist in explaining the. Download the air brake manual in pdf format download download the air brake manual guide for instructors in pdf format download to open the air brake manuals you need to install adobe reader online tests all canada b. This diagram provides both a closeup view and an example of where the brakes are located in your vehicle. Pdf a diagnostic system for air brakes in commercial vehicles. Irab 1 brake system has been designed by rdso and fitted with new generation alco locomotives. Ice inside the system can make the brakes stop working. Use this page as a reference to find common schematic symbols used in fluid power schematics, hydraulic schematics, pneumatic schematics, diagrams, and circuits. A diagnostic system for air brakes in commercial vehicles. Trailer systems troubleshooting guide how to use this chart the purpose of the chart is to help you solve a specific problem in the pneumatic portion of a trailer air brake system with the assumption the foundation brake components and tractor pneumatics are in good repair. It contains the information you need to prepare for the air brake endorsement examination. Sealco commercial vehicle products air system piping diagrams.
Always consult a professional technician to properly troubleshoot your system. Motor vehicle safety standards mvss 121 requires an air capacity 12 times the total volume of all air brake chambers on the vehicle. The air compressor is connected to the engine through gears or a vbelt. This distance depends on the ability of the lining to produce friction, the. Use this study manual to prepare for tests to get a yukon drivers license for heavy truck, bus or taxi.
876 729 514 34 809 1015 1012 1153 772 625 177 1538 1520 670 983 996 89 79 467 785 1138 1059 663 500 626 1339 1375 522 696 198 1431 1206 419 304 1084