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Learn about air brake basics - watch the video!! CDL IN-CAB Air Brake CHECKLIST: 🤍 SUBSCRIBE TODAY! ► 🤍 #cdlairbrakes #smartdrivetest #cdltraining Get 30% OFF Air Brake Course. Coupon "youtube30" CLICK THE LINK 🤍 CHAPTERS: 0:00 Basic Air Brake Systems 1:11 Schematic Air Brake System 1:28 Air Compressor 2:01 Governor 2:38 Maximum Air Pressure 2:57 Air Tanks (Reservoirs) 3:24 Safety Valve (150psi) 4:02 Drain Valves 4:45 Air Lines 4:51 Brake Pedal (Service Brakes) 5:31 Foundations Brakes 6:40 Wedge Brakes 7:18 Review Questions 7:28 Air Brake Fundamental Components 7:47 Purpose of Governor 8:20 Failsafe - Air Tanks 8:44 Drain Valves - Purpose 9:11 Safety Valve Sound 9:49 Question for Smart Driver There are 6 basic components on an air brake equipped vehicle: 1) compressor; 2) governor; 3) air tanks; 4) air lines; 5) brake pedal; 6) foundation brakes. The air compressor on an air brake equipped vehicle is exactly the same as an air compressor you would find in a garage. The only difference is that an air compressor on an air brake equipped vehicle runs the entire time the motor is running; therefore, it is controlled by the governor. The governor controls the maximum and minimum setting of the air compressor because the air compressor is capable of pumping up to 500psi (pounds per square inch). The governor must return the air compressor to the load or cut-in phase by a minimum of 80psi. And it must return the air compressor to the cut-out or unload phase by a maximum pressure of 135psi. All air brake systems are equipped with a safety valve, which blows off excess pressure at 150psi. You will know it is the safety valve because it makes a sound like a machine gun. The air tanks or reservoirs store compressed air. As well, the air tanks are the first fail-safe of the air brake system because these store enough compressed air for 10-12 full service brake applications. The air lines direct compressed air through the air brake system. The air lines are not coloured coded except the service and supply lines that connect the semi-trailer to the tractor or truck. The brake pedal applies the service brakes, which are the brakes that bring the vehicle to a stop while it's going up and down the road. And the foundation brakes are the components of the air brake system that are actually responsible for bringing the vehicle to a stop: • brake chambers • push rod • slack adjuster • 'S' cam • brake shoes (pads) • brake drum • rotor • callipers And the foundation brakes can be any of the following; however, drum and disc brakes are most common on today's vehicles: • drum ('S' cam) brakes • disc brakes • wedge brakes • CamLaster brakes • air-over-hydraulic brakes The foundation brakes—in this day & age—will be 2 basic types: drum or disc brakes. Foundation brakes also consist of air-over-hydraulic and wedge brakes - you will need to know the latter for the purposes of the air brake knowledge test. Good luck on your road test! 🤍smartdrivetest.com 🤍facebook.com/smartdrivetest 🤍twitter.com/smartdrivetest 🤍instagram.com/smartdrivetest
This video gives an introduction and brief look at air braking systems on heavy and commercial vehicles. You'll see from the animations that all systems have a compressor to supply the air, reservoirs to store the compressed air, controls for the driver to direct the air (foot and hand brake) and actuators and friction brakes to actually carry out the braking. This video sticks the the fundamental basics of the Air Braking System and doesn't go as far as other system components such as s-cams, relay, quick release and trailer control valves, air dryers and filters, protection valves and other system operations. We'll go into depth with these in further videos. For an explanation of the air brake relay, go here: 🤍 If you like what you see hit the like button, and if you would like to see more subscribe to Educational Mechanics here: 🤍 Find us on Facebook at: 🤍 Visit our website for a larger collection at: 🤍 Camera gear used in this video: Sony CX240 camcorder 🤍 Gopro Hero 4 Session: 🤍
hey guys, so on this video i will show you what you need to do, in order to pass your air brake test, and also check your service brake and tractor/trailer brakes. i really hope the video is helpful and can help you guys out there trying to get your CDL. make sure to LIKE this video, COMMENT if you would like for me to make other videos regarding the CDL like, pre trip inspection etc. ALSO dont forget to (SUBSCRIBE) subscribe to my other youtube channel: 🤍 FACEBOOK page: 🤍 instagram: grtruckingdemolition #cdltest #airbrakestest #servicebrake
For both a road test & your daily pre-trip inspection you must determine if the air brakes are in adjustment. Watch the video! CDL IN-CAB Air Brake CHECKLIST: 🤍 SUBSCRIBE TODAY! ► 🤍 #cdlairbraketest #smartdrivetest #airbrakepretripinspection Get 30% OFF Air Brake Course. Coupon "youtube30" CLICK THE LINK 🤍 Adjustment Limit Chart: 🤍 Depending on where you're taking your CDL licence, you are required to check air brake adjustment. Either the pry bar or the applied stroke method will be required. Most jurisdictions use the pry bar method to determine if the air brakes are in adjustment. Safety first: chock the wheels, release the parking brakes and ensure that the system air pressure is above 90 psi (620 kPa). If using the pry bar method, you'll require a pry bar. Using a pry par, force the push rod out of the brake chamber. The push rod should not extend out of the brake chamber more than 3/4 of an inch, or the width of your thumbnail. In New York & the state of California, they allow 1" inch of travel using the pry bar method. Other jurisdictions, such as Ontario in Canada, require that license examinees use the applied stroke method. Again, chock the wheels, release the parking brakes and ensure the system air pressure is above 90 psi. Mark all the push rods at a fixed point - usually the face of the brake chamber. Apply the service brakes and hold - either get someone to hold the service brakes in the applied position or use a stick, or other device. After applying the service brakes, measure from the fixed point out to the mark on the push rod to determine if the air brakes are in adjustment. With automatic slack adjusters on a Type 30 brake chamberwhich are the most commonyou are allow 2" of push road travel. In the rare case that you have manual slack adjusters, the push rod is allowed to extend out of the brake chamber 1 3/4" inches. The amount the push rod is allowed to extend out of the brake chamber is determined by brake chamber size, and the size of the brake chamber is determined by its diameter. If the brakes are out of adjustment, and the vehicle is equipped with automatic slack adjusters, you can attempt a "6-pack" to bring the brakes back into adjustment. Pump the system to maximum pressure, make 3 full, hard brake applications. Pump the system's air pressure back to maximum and make 3 more full, hard brake applications. Often this will bring the brakes back into adjustment. If not, the vehicle will have to be brought to a mechanic for repair. Good luck on your road test! 🤍smartdrivetest.com 🤍facebook.com/smartdrivetest 🤍twitter.com/smartdrivetest
saat ini kita akan belajar basic air brake sistem pada kendaraan baik di alat berat maupun kendaraan pribadi masih banyak yang menggunakan air sistem atau sistem udara untuk mengaktifkan sistem brake nya atau sistem rem, seperti pada grader hino Scania volvo dan masih banyak lagi. adapun Component utama dari sistem udara ini adalah. air compresor yang di putar langsung oleh mesin dan berfungsi mensuplai kan udara ke sistem air dryer berfungsi menyaring udara yang akan ke sistem sehingga terbebas dari adanya uap air yang bisa merusak kerja komponen air Governor berfungsi mengatur load kompresor sehingga kompresor bekerja sesuai kebutuhan pada air sistem air tank berfungsi menyimpan udara dalam air sistem check valve pada air tank berfungsi mencegah udara pada air tank kembali ke kompresor ketika kompresor tidak ada beban safety valve pada air tank berfungsi menjaga pressure maksimal dalam air tank low pressure switch pada air tank berfungsi memberi tahu operator ketika terjadi penurunan pressure pada sistem brake automatic drain valve berfungsi membuang air secara otomatis di dalam tangki akibat proses kondensasi brake valve berfungsi mengatur dan mengarahkan udara dri air tank ke sistem brake sesuai kebutuhan (injakan pengemudi) brake chamber berfungsi mengubah tenaga pneumatik menjadi gerakan mekanik untuk mengaktifkan brake
kenalan sama bagian-bagian Brake System Quester CKE 250 & GKE 280 semoga memambah wawasan bagi dulur dulur semua... #quester #questermania #udquester #udtrucks #nissanquester #volvotrucks #quester280 #volvotruck
This court animation depicts the components and operation of a commercial vehicle air brake system. It is difficult for jurors to understand how air brake systems work. Verbal descriptions, drawings, photos and even videos have limited usefullness. This version, along with the live narration of an expert, provides an easy to understand portrayal. For more information visit 🤍wolftechnical.com. Copyright 2016 Wolf Technical Services, Inc.
A more detailed look at the air braking system, in particular with this video at the air brake relay. Relays are fitted to an air braking system for larger vehicles to speed up the application and release of the brakes, minimising brake lag, which is the time it takes between the driver operating the controls (park brake/foot brake valve) and the action actually happening at the brakes. For a bit more background before watching this video, take a look at our "introduction to air brakes" 🤍 If you like what you see hit the like button, and if you would like to see more subscribe to Educational Mechanics here: 🤍 Visit our website for a larger collection at: 🤍
Department of the Army, Washington, DC. Air Brakes - Principles of Operation. AVA97923-VNB1 1994 Explains the design and functions of the components in the air brakes system used in large military vehicles. Shows what happens when the brake pedal is depressed and released.
The brakes on your car are the same as air brakes, only the power source is different - watch the video. CDL IN-CAB Air Brake CHECKLIST: 🤍 SUBSCRIBE TODAY! ► 🤍 Get 30% OFF Air Brake Course. Coupon "youtube30" CLICK THE LINK 🤍 On a hydraulic braking system that is fitted to most passenger vehicle, there are three brake types: 1) service brakes (brake pedal) 2) parking brakes 3) emergency brakes. All braking systems are divided into two independent sub-systems, therefore it is rare that service brakes fail. When you're going up and down the road, you apply the foot pedal and the vehicle comes to a nice gentle stop. Or if you find yourself in an emergency situation, you have the brake pedal and the vehicle comes to a screeching halt. Although 85% of vehicles in North America are fitted with automatic transmissions and 90% of those drivers don't use the parking brake, all vehicles have parking brakes. And drivers should use the parking brake to prevent undue wear on their transmission when the vehicle is left parked. And in the event that the brakes fail going up and down the road and the brake pedal doesn't work, the driver can apply the parking brake. When the brakes fail and the driver uses the parking brake to bring the vehicle to a stop, the parking brake is now an emergency brake, becauseoddly enoughit is now an emergency situation. Ai brakes have the same three types of brakes: 1) service brakes (brake pedal) 2) parking brakes 3) emergency brakes. What has confused students since air brake courses were implement in the 1970s is that instructors refer to service brakes as air brakes and spring brakes as parking and emergency brakes. There has not been a clear terminology, and this lack of clarity has served to confuse air brake students. So, the three brake types are the same. What is different is that power source that applies the brakes. On a hydraulic system, hydraulic pressure applies the service brakes. The parking/emergency brakes are applied with a cable and lever. The energy to move the lever comes from the driver. The only difference between the brakes on a hydraulic system and those on an air brake system is the power source and that the emergency brakes on your car are applied manually - on an air brake system, the emergency brakes apply automatically. On an air brake system, the driver pushes the brake pedal and applies the service brakes going up and down the road. When the driver parks the vehicle, she/he pulls the parking control valve on the dash and exhausts the air from the spring brake chamber. Exhausting the air pressure allows the large, powerful springs to expand which applies the parking brakes. While the vehicle is going up and down the road, the large powerful springs are held in the released position by air pressure. If the air pressure is lost, the large powerful spring will expand and begin to automatically apply the emergency brakes. Both hydraulic and air brake systems are the same. Both have parking brakes where the parking/emergency brakes are one and the same. The only difference is that the emergency brakes on your car are applied manually and on an air brake system these apply automatically. What has confused students is referring to parking/emergency brakes as spring brakes. Good luck on your road test! 🤍smartdrivetest.com 🤍facebook.com/smartdrivetest 🤍twitter.com/smartdrivetest 🤍instagram.com/smartdrivetest/ #airbrakes #smartdrivetest #cdltraining
Watch a test and explanation of the system: 🤍 On a test track in the new Volvo FH, together with test drivers, you get to experience how the Collision Warning with Emergency Brake system can avoid a rear-end collision, even if it's tight! The tractor-trailer is fully loaded to 40 tons GCW. Animation of the system: 🤍 Visit Volvo Trucks website: 🤍 Volvo Trucks on social media: 🤍 🤍 🤍 🤍 🤍
The second video in my "Tricks" series demonstrates how to effectively use 100% prop pitch on German aircraft to slow down, as if it were an airbrake. I've had a lot of practice in it recently, and I think I've reached a competent level. Included in the video are examples of when and how to use it, with dogeness as the enemy. Perhaps this trick will help you fight undertiered Allied aircraft ;). Aircraft: Bf109G10 vs F4U-4 Useful top speed at sea level spreadsheet made by dogeness and I (mostly dogeness): 🤍 Dogeness' Youtube channel: 🤍 Music: Track 1: Staring at the Valley by Silent Partner Track 2: Remember The Heroes by Audionautix is licensed under a Creative Commons Attribution license (🤍 Artist: 🤍
While any air brake system is engineered to tolerate some amount of air leakage without sacrificing performance, it’s vital to know what steps to take if air leakage is present. This video covers factors that can contribute to air system leaks, how to test for leakage, and recommended ways to handle air leakage. For more information on Bendix air management systems, visit us online at Bendix.com | knowledge-dock.com | brake-school.com or call 1-800-AIR-BRAKE today. Follow 🤍Bendix_CVS on Twitter, and visit our LinkedIn page at 🤍 BW5093
JE की तयारी के लिए App Download करें 🤍 For any query Whats app on 9041749429 Strength of material Full Syllabus 🤍 Fluid Mechanics Full Syllabus 🤍 Theory of machine Full Syllabus 🤍 Thermodynamics Full Syllabus 🤍 Combo Pack 4 in 1 🤍 JE की तयारी के लिए App Download करें 🤍 For any query Whats app me on 9041749429 Strength of material Full Syllabus 🤍 Fluid Mechanics Full Syllabus 🤍 Theory of machine Full Syllabus 🤍 Thermodynamics Full Syllabus 🤍 Combo Pack 4 in 1 🤍 Click here to download our app 🤍 Try this free mock test 🤍 #GearInstitute #Automobile For all my videos links click here 🤍 For MCQ or mock test click here 🤍 join telegram channel 🤍 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. The five main components of an elementary air brake system and their purposes are: Compressor: to build up and maintain air pressure Reservoirs: to store the compressed air Foot valve: to draw compressed air from reservoirs when it is needed for braking Brake chambers: to transfer the force of compressed air to mechanical linkages Brake shoes and drums or brake rotors and pads: to create the friction needed to stop the vehicle Pneumatic brake system An air operated brake system or pneumatic brake system is employed predominantly in medium and heavy duty trucks, because of the following advantages. 1. The pressure of the precompressed air allows practically any force required for braking to be developed with a very small effort applied by the driver to the brake pedal. 2. The compressed air can also be used to inflate the tyres, drive the windshield wiper, actuate steering gear booster, open and close doors in buses etc. 3. An air operated brake is the most dependable and convenient device for braking full trailers and semitrailers.
Incident Report (Abbreviated) Date / Time : 10 August 2019 - 13:15 Location : Aspres-sur-Buech Aerodrome, France Summary : Pilot launches on aero-tow with air brakes fully open. Pilot is forced to do an emergency out landing. Landing Field : 44.518875, 5.717236 Damage / Injury: None. Reason : Pilot failed to complete his full pre-flight check list. I had arranged to tow up with tow pilot Philippe at 13:30 and was waiting on the launch point with my glider for the tow plane (piloted by Francis) to return to the airfield. I was chatting to Philippe when I saw the Tetras on downwind, and started to get into my glider and sort myself out, still expecting Philippe to change places with Francis and tow me up, so I was not in a rush at that time. The Tetras landed and turned around in front of me, and the heavier sailplane tow rope was exchanged for the lighter PUL tow line. My glider was already connected to the PUL tow line. The Tetras then immediately started to take up slack, before I had even time to buckle into my glider harness, close my canopy or go through my pre-flight check list. I made a quick radio check with Francis to make sure he could hear me. I announced "Tendu - 2 minutes please" on the radio. Francis replied "Hurry up, my engine is getting hot", which placed enormous pressure on me to finish my preparations (harness buckles, arm the rocket parachute, close my canopy, check my controls for full and free movement, set flaps to 5 degrees and, critically, close my air brakes.) By the time I had my canopy closed and secured, the tow aircraft was beginning to pull me forward very slowly, and I abandoned my partially completed pre-flight checklist in order to put my hands on the controls and tow release, and I stupidly signalled/radioed that I was ready. This was my mistake. I should have disconnected from the tow line and radioed the tow pilot to turn off his engine and wait for it to cool down. I should not have allowed myself to be pressured into taking off before I was 100% ready. The tow started normally, but I found the air to be much more turbulent than I expected, and the response of the glider in roll was diminished. There was also significantly more noise coming from the wings than normal. I released at 1450m amsl heading east along the south face of Apotre mountain and turned back west in sink. At this point I still didn't realise my air brakes were fully open, even though the glider had a slight pitch down tendency and handled a little sluggishly in roll - two characteristics of the air brakes being open - but I was still stressed from the turbulent tow and not thinking analytically. I continued to fly west along the ridge in the hope of finding stronger lift, but I was descending rapidly. At the corner of Apotre and Longeane I discovered that I was at 1250m amsl, much lower and descending much faster than I had realised, and I made my turn to return directly to the airfield, which is at 830m amsl. Just a few seconds later I found myself at 1100m amsl and realised I would not make it back to the airfield. I was in a state of disbelief, but rather than search for a reason, I concentrated on flying the glider. What was happening was happening, and I had to deal with it. Given my rapid descent rate (approximately -3m/s+) I quickly made the decision to land in the nearest lag field facing approximately into the prevailing wind (10-15kmh South South West). I set up my approach and, making my final turn, reached for the air brake handle only to discover that the air brakes were already fully open. I closed the air brakes and re-opened them to adjust my glide slope, and made a good approach with plenty of speed (~85kmh - my stall speed is ~40-45kmh) and landing into the up-sloping field. Touch down was smooth and controlled, and I rolled to a stop. No damage done. Lessons learned: 1 - I did not complete my pre-flight checklist, the last item of which is: Close the Air Brakes. 2 - This incident was entirely my fault. I allowed myself to be pressured into launching before I was 100% ready. 3 - The unintentional pressure placed on me by the tow pilot (who was concerned about his engine temperature) was a contributory factor to this incident. 4 - I should have released from the tow line and told the tow pilot I was happy to wait until his engine had cooled down. There was no rush on my part to launch. 5 - I will paint my air brake spoilers bright orange for next season to make them more obvious to both the tow pilot and the wing man. 6 - Once in the air, I did not associate the extra noise, pitch down tendency or reduced roll control authority with the air brakes being open. After releasing from the single most turbulent tow of my short 3-axis flying career, it took me some time to recover my composure and to relax, and I was concentrating on flying the glider rather than looking for a reason for my rapid descent rate.
Hi.Dost, aap dakhrahe hai channel Auto Space, For more videos click the link.. 🤍 Is video me aap dakhange 4wheel or two axle gadi me Air Brake system kaise Kam Karta hai. Brake system me sare components and working, line diagram with all pipe port number. I hope, is video se aap ka 4wheel/twin axle (1616,1612,)ki brake system clear ho jaye ga and aap neya kuch shikhenge. DDU, AIR DRYER,QSPV - 🤍 BASIC AIR BRAKE - 🤍 AIR COMPRESSOR - 🤍 Any Queries.. Email - askautospace🤍gmail.com 🤍 🤍 #modernairbrake #airbrakesystem #Airbrake
Part of the Accuride Gunite brand Automatic Slack Adjuster training series. Gunite slack adjusters are the industry’s first choice for performance, reliability and safety. Improved braking performance, lower operating costs and reduced down time are just some of the advantages you’ll experience with Gunite Automatic Slack Adjusters.
CLICK HERE: 🤍 to subscribe to Janson Media and get notified for more videos! We at Janson Media uploads on the daily so stay tuned for more videos of your interest! #Movie #Film #Documentary #Westinghouse #Tesla #History George Westinghouse changed the face of the world with his inventions, patents, business sense, and personality. Not a day goes by that we don't use something pioneered by George Westinghouse. He is the forgotten role model that our country needs today to teach future generations of Americans that hard work and kindness pay off. George Westinghouse was one of the most successful men in the world. A respected engineer, inventor and America's greatest industrialist. He was a pioneer of the industrial revolution and played a leading role in turning the United States from a young agrarian society into a modern economic powerhouse. The name "Westinghouse" has been a household name the world over for more than 100 years because of one man, his love of machines, and his desire to make the world a better place. The accomplishments that George Westinghouse had in his lifetime had a major impact on the way we live today. His work in the railroad industry with the Westinghouse air brake, the electrification of the world with Westinghouse alternating current, him being instrumental in developing natural gas as a fuel, and his impact on the shipping industry with the Westinghouse geared marine turbine engine. George Westinghouse was known as a good person. He always had a very good rapport with his workers. There was never a strike at any of the Westinghouse companies all the time he had control of them. And, you know, that was not common back in those days. He certainly was not motivated by greed or money. He really thought that his accomplishments would benefit mankind. And that alone was a driving force for him. This film also engages in the power struggle between Westinghouse and Nikola Tesla.
Truck brake is not working | Let open the brake servo and check what's going on ? #brakeservo #brakebooster #mechanicalhacks How to repair brake servo How to fix brake servo Brake servo repairing & cleaning How to repair brake booster How to repair brake servo with small tools How to repair truck brake booster
A look at the movements and states of operation of the air brake relay. Relays are fitted to an air braking system for larger vehicles to speed up the application and release of the brakes, minimising brake lag, which is the time it takes between the driver operating the controls (park brake/foot brake valve) and the action actually happening at the brakes. For a bit more background before watching this video, take a look at our "introduction to air brakes" 🤍 For the full video, with narration and a full explanation of the video, see here: 🤍 If you like what you see hit the like button, and if you would like to see more subscribe to Educational Mechanics here: 🤍 Visit our website for a larger collection at: 🤍 Another Way by Psykick (c) 2016 Licensed under a Creative Commons Attribution (3.0) license. 🤍
The compressor is a basic component of an air brake system. Watch the video to learn about the compressor!! CDL IN-CAB Air Brake CHECKLIST: 🤍 Subscribe Today! ► 🤍 Get 30% OFF Air Brake Course. Coupon "youtube30" CLICK THE LINK 🤍 The compressor is parasitic: it takes power from the engine via gears; it uses the engine’s lubricating system; the engine’s air intake and filtration; and in some cases its cooling system. For the purposes of a road test, students must conduct a compressor or build up test. The compressor must be capable of building a set volume of air in a fixed amount of time with engine at a high idle (1000-1200rpm). Good luck on your road test! * 🤍smartdrivetest.com 🤍facebook.com/smartdrivetest 🤍twitter.com/smartdrivetest 🤍instagram.com/smartdrivetest/ Music: BoxCat Games Nameless: The Hackers RPG Soundtrack - Epic Song Source for animated compressor: 🤍 Link for Compressor Tests: 🤍
Air brake chambers are an essential part of a truck and trailer rig. But what differentiates all the different types out there? How do they work? How do I replace or maintain them? We answer all these questions and more in this episode of Gear Up with Gregg’s. If you require more information about any of the products you saw in this video, be sure to check out our catalogue! 🤍 CHAPTERS: 0:00 INTRO 1:04 HOW SERVICE BRAKE CHAMBERS WORK 2:19 HOW SPRING BRAKE CHAMBERS WORK 4:02 SAFETY AROUND THE RETURN SPRING 4:54 PUSHROD STROKE LENGTH CAPACITY, AND SLACK ADJUSTERS 5:36 STYLES, TYPES AND SIZES OF BRAKE CHAMBERS 6:59 MAINTENANCE OF BRAKE CHAMBERS 7:56 MOUNTING A BRAKE CHAMBER 8:38 OUTRO Subscribe to our channel and stay up-to-date on all of our videos including Heads Up for Hosers, Gear Up with Gregg's and more! Founded in Edmonton, Alberta and 100% Canadian owned, Gregg Distributors LP distributes products across Western Canada to the industrial, agricultural, automotive and heavy truck sectors. Visit our website for location details and information on how you can contact your local Gregg's branch today. 🤍 Follow us on Social Media! Facebook: 🤍 Twitter: 🤍 Instagram: 🤍 LinkedIn: 🤍 Also, remember to have a Great Canadian Day!
F7 EMD Locomotive tour at Royal Gorge Route Railroad. See how the engines are connected and learn the very basics about air brakes. Chief Mechanical Officer B.Evans shows us various parts of the system. See the 27-wire jumper cable (MU cable). See the diesel fuel tanks and learn more about engineering in this 3rd part of our diesel locomotive video.
A more detailed look at the air braking system, in particular with this video at the quick release valve. QRV's are fitted to an air braking system to speed up the release of air, as it takes longer for air to escape a system than it does to put it in there. The main applications for quick release valves are in the service line to speed up the release of the service brakes, and in the secondary circuit to speed up the application of the park/secondary brakes. With a similar purpose to the air brake relay, the QRV is just there to speed up the release of compressed air from the braking system. For a bit more background before watching this video, take a look at our "introduction to air brakes" 🤍 If you like what you see hit the like button, and if you would like to see more subscribe to Educational Mechanics here: 🤍 Visit our website for a larger collection at: 🤍
Inspection of air brakes is 'MUST KNOW' for a CDL license - watch the video! CDL IN-CAB Air Brake CHECKLIST: 🤍 SUBSCRIBE TODAY! ► 🤍 Get 30% OFF Air Brake Course. Coupon "youtube30" CLICK THE LINK 🤍 SEE TOPICS BELOW In-Cab Tests CHECKS INFOGRAPH: 🤍 Introduction 0:00 Prologue 2:05 Air Tank Inspection 2:45 Under Hood - Driver's Side 4:05 Under Hood - Passenger Side 6:09 Rear of Vehicle - Under 6:46 Rear of Vehicle - Top 7:31 In-Cab Tests 8:33 Brake Tug & Response Tests 17:29 Conclusion 18:16 Question - Are you required to do the Pry Bar or Applied Stroke method to check air brake adjustment? 21:47 Blooper 22:49 The pre-trip inspection determines if the air brake system is safe and that the vehicle can be operated on public highways. The air brake pre-trip inspection can either be done independently or as part of the entire vehicle pre-trip inspection. For the purposes of a CDL (Commercial Driver’s Licence) in the United States, Canada and other countries you must be knowledgeable in air brakes. The air brake course consists of both a theory or knowledge and practical portion. The knowledge component of the air brakes is complicated by the fact that the air brake courses that are being taught are 40 years old. And because these air brake courses are 40 years old, everything and the kitchen sink are part-and-parcel of these courses. In the above video, we do a stand-alone inspection of the vehicle’s air brake components. The first steps of any pre-trip inspection are to chock the wheels, release the parking brakes, and ensure that there is more than 90psi (pounds per square inch) of air pressure in the system. When releasing the parking brakes, put your foot over the brake pedal in the off chance that the wheel chocks do not hold. The air brake pre-trip can be done in different sequences and that will depend on different driving schools. For this sequence, we inspect the air tanks first, and if it is an older system, you drain the wet tank first to ensure that the one-way check valves are working. If the one-way check valves are working, you know that the dual air brake system is also working. You then inspect all the components outside the vehicle starting under the hood on the driver’s side. And using the pry bar (free-stroke) method, inspect the adjustment of the air brakes. As well, your mantra for the inspection is: “secure, not damaged, not leaking.” Approximately 75% of the components in the vehicle have either air or fluid in them, so you say that the component is not leaking. After completing the inspection outside the vehicle and determining that all components are operational, you go in the cab and inspect: 1) governor (minimum & maximum settings) 2) low-air warning 3) spring brakes apply automatically 4) compressor (build-up) 5) leak test The last test for the air brake pre-trip inspection is to apply the parking brakes, remove the wheel chocks, and then do a tug test on the parking brakes and a response test on the service brakes. The last part of any pre-trip inspection is to fill out the paperwork, which is a legal document. And the pre-trip inspection form must be filled out as part of the driver’s daily tasks. 🤍smartdrivetest.com 🤍facebook.com/smartdrivetest 🤍twitter.com/smartdrivetest 🤍instagram.com/smartdrivetest/ #smartdrivetest #cdltraining #pretripinspection
Driving Academy 🤍cdldrivingacademy.com How to pass Your Air Brakes Exam - Part 1 CDL Training This video will give you live CDL Training on the basics of the Air Brakes. The air brake system can be complicated and confusing so we like to make it easy and simple to understand. This is how we teach people to pass their Air Brake exams. in this video you will see our director teach a class explaining Air Brakes and how they work. This CDL Training takes even the newest students and turns them into pros. Driving Academy is always looking for the simple and effective way to communicate with our students. This is a great example how something complex like air brakes can be broken down to something simple and fun. Our students as all the time How do air Brakes work and we put them through this CDL training. Air Brakes are and very important part of the test and a very important part of CDL Driving. If you would like a simple way to learn the Air Brake system then come to Driving Academy and we can help you out. We are located at 200 East Edgar RD Linden NJ 07036
A full procedural video of the Commercial Driver's License (CDL) Class B (Dump Truck) with Air Brakes Pre-Trip inspection. A Class B vehicle is a straight truck (no trailer) with a Gross Vehicle Weight Rating of 26,001 lbs. or more. This video uses a dump truck as an example, but the procedures would be the same for other Class B vehicle types such as bucket trucks, garbage trucks, flatbeds, and other straight trucks. During your Pre-Trip Inspection, Forms A and B, you must be able to point to or touch each item and correctly tell what you are inspecting the item for. During the In Cab portion of the Pre-Trip, you must actually demonstrate each item. This detailed "full form" training video should help you with understanding the steps and procedures required for passing your Pre-Trip inspection. The video makes distinctions between each of the forms with clear start and stop points. Each segment has a recap for review at the end of each of the form tutorials. The video details the Air Brake Check procedure. The Air Brake Check procedure is a Pass/Fail evolution. You must be able to demonstrate it without an error or it is an automatic fail. The video is an excellent tool for preparing for the Class B Entry Level Driver Training (ELDT) Behind-the-Wheel Range exercises. SMG, Inc. is a certified third party CDL testing facility located in the State of Florida. Interstate Commercial Driving School (ICDS) is a Florida Department of Education, Commission of Independent Education, licensed truck driving school located in Crystal River, Florida. License number 4646. For the CDL Class B (Dump Truck) with Air Brakes Pre-Trip Inspection checklist, visit our Website: 🤍 CDL Class B Pre-Trip Intro (0:22) Form A: Front of vehicle and engine compartment. (1:16) Form A Recap. (6:40) Form B: Driver's side fuel area to the rear of the vehicle. (9:15) Form B Recap. (15:36) In Cab Inspection and Air Brake Check. (18:30) In Cab and Air Brake Check Recap. (26:12)