Copart Walk Around OKC 11-22-22 + Bidding on a SCHOOL BUS!!! 

If air pressure fails the brake Chambers expand and parks the vehicle. That's why when you push in the parking brakes you are adding air to the system to retract the parking brake in the brake chamber

I appreciate your persistence with sticking to cars that the every day guy can buy. All too often, RU-vidrs get too big for their britches and start buying all of these expensive, exotic cars, that normal people can’t buy. Thank you for sticking with the oldies.

The air pressure actually holds the brake pads from compressing against the rotors so if the air line fails the brakes will be permanently activated until it's fixed I learned this from my bus driver because I was actually curious

Randy, max air pressure is 120 psi. It'll occasionally build up past 120 psi then you'll hear the air dryer pop off. Which is the excess air. The doors on the bus work off of air cylinders. When it comes to the engine regen, the engine has to be at a certain temperature. With the switches on the side, noise suppression cuts power to everything inside the bus. Like the radio or your PA speaker which you called a CB radio. You talk into the microphone & it let's you speak through the speakers on the inside of the bus ONLY if the noise suppression switch is not activated. The amber lights work ONLY when the door is shut. Then when you open the door the red lights automatically come on. The strobe light switch is for the white strobe light on top behind the rear emergency exit on the roof. It's used for inclement weather such as rain, fog, etc to help identify it as a School Bus. The "emergency brake" is actually the parking brake. Once you pull the button, it ain't going anywhere.

Randy.. you do not need a CDL endorsement to privately own a school bus or semi truck. If you plan on using it for business purposes, then you will need to obtain your CDL. Class A for semi trucks and Class B for something like a school bus or box truck with air brakes. People with a regular driver's license purchase school busses and convert them into RV's. It might be a good idea for a video for you to schedule an interview with the DMV or pull into a weigh station and speak with the state patrol about CDL endorsements.

Freightliner/international Master technician chiming in here. That's a freightliner m2 chassis. The brakes have a very heavy duty spring in the brake chamber that pushes the shoes against the drums via a slack adjuster and S-Cam. When you release the brake it fills a diaphragm with air that releases the spring. It will not roll away when the air drops unless the springs are broken. Also the system should hold 125psi. The P and S on the air gauges mean Primary and Secondary. It has 2 tanks. Both separate from eachother incase of a failure. The air tanks won't begin to fill again until it goes below 100psi. As for the CDL, you would need to remove the seats to drive it. You need a Passenger endorsed cdl to drive it with that many seats. If you have any questions I would love to answer! Stay safe randy!

Air brakes work the reverse of hydraulic brakes. Air brakes are engaged by springs, and the air pressure is what disengages the brakes, so if there is a sudden drop in air pressure, the brakes will engage. You lose hydraulic fluid, no stoppy. You lose air pressure, no goey. To simulate sudden loss of air pressure in our training, we had to get up to 35 mph and pull the parking brake. Surprisingly, the bus comes to a smooth, quick stop with no drama.

Hey Randy when a air brake vehicle loses air pressure they automatically lock up so you don't have to worry about them rolling take care good luck with your purchases.

Also, the air leak in the bus is most likely the parking brake valve which is right behind the dash. Super easy and cheap to replace. Most just need a new o-ring.

Hey Randy, I'm a School Bus driver. And the top air gauge is the primary and the second glair gauge is the secondary. And no the bus won't roll. At 60 psi or more the low air warning will come on which is an audio and light on the dash. Now on some buses 40 psi and lower the spring brakes will activate... now that air leak by the door is more likely the seal the the emergency release on the door. Which was somewhere on top of the door...any questions you may have on the bus just ask me. I've been driving school buses for over 25 years. And I've been a fan of yours for about 6 months now. And yes you have to have a CDL to drive that bus.

Randy I think you have a few scammers on here one of them commented on my previous message I believe trying to act like you I still love your channel. I'm paralyzed it gives me something to look forward to. Sorry to make this long but I believe the air brakes on the bus once you have locked the parking brake even if the system bleeds off all of the air the bus won't move until you replenish the system with enough air pressure to unlock the parking brake my old boss used to let me play around and some of the rigs and box trucks he had those things are fun I miss it since I've gotten paralyzed though hope you get to see this comment. You make me smile.. Thank you

Dude channel is call auto auction rebuilt but hasn’t fix a single shit

Love the walk arounds. Keep doing what you want. You do damn good at whatever you do.

C2 is a great bus. I prefer them over international and blue bird. Way better turning radius. The ride quality all depends on what seat you have. Big fuel. Huge fuel tank.

Great video Randy. All of the stuff you bid on has some great potential. The school bus could of had some great potential. Thought the van on CNG was pretty cool as well. Keep up the great stuff as always.👍

You can buy that bus. You don't have to register it for 31000gvw. At least in Minnesota you could register it for 26000 and your good. The vehicle doesn't weigh more than 18,000. It's all about the paperwork and total actual weight if you go across a scale. There are lots of box trucks running around that can handle a total weight of 31,000 but their registered for 26 so that you don't need a CDL to drive it. At that point you just got to make damn sure that you never over 26,000 like your dot paperwork says.

Not gonna lie , I really enjoyed the bus tour! Do more of these along with semi tours!! Thanks Randy

Yessss, finally! Have fun with it, they’re fun to work on.

I’ve driven a few CNG light commercial trucks in Australia, all of them had constant issues with ignition failures and horrible fuel consumption! Cheers Pat🇦🇺

There will be a bypass lever for the door to close under air pressure. It’s released when bus is parked so door can be opened without air pressure. Once you find the lever for door it should open and close when air pressure is available. It should not be leaking though, but should be an easy fix when found.

Randy - Exactly right. That's a key vault. It's so the mechanics always have access to the vehicle. I work for the telephone company and every vehicle in my garage has one.

I love watching auto auction rebuilds iam waiting for next video to come out auto auction rebuilds is my favorite show !

I watch every video you make love everything keep up the fantastic work 👍😎☺️

On a bus like that the restrictions change. You can either register it for personal or recreational use and it won’t require a CDL, if it’s being used for commercial use as long as you aren’t transporting more that 15 passengers. Yes the air system operates the brakes and there is no parking gear, but the air pressure is used to release the brakes, not hold them on. Each wheel has a spring loaded brake chamber, when you press the yellow brake handle it supplies air pressure to one side of a rubber diaphragm that compresses that spring which pushes against a connecting rod attached to the S Cam that pulls the brake shoes in and away from the brake drum.

Whoa you can turn that bus into an RV 😊🤘🏽🔥

When you set the parking brakes in any air brake vehicle, you activate the spring brakes which keep it in place and prevent it from rolling away. On the regeneration, you need to keep the regeneration button pressed in until it starts to idle on its own on a higher idle. Idle you'll know when it's doing it. Keep it pressed in! Enjoy yourself. Have a great day!

Randy there are solenoids all over that dash for the parking brake they purge as well and that’s why I hear hissing the door runs off air pressure as well there is a solonoid on that to

I have personally worked on that bus and know the contractor. I am the Head mechanic for Allegany County Public Schools and I install the camera and radio systems in every bud and remove them at the end of service life 12 years.

OMG i been wanting you to do this

So as a school bus driver I can clear some things up. 1 you would need a CDL to Drive that Vehicle, one reason would be because of the weight, the other reason is because the equipped capacity (designed to carry more than 15 passengers plus driver) requires a passenger/school bus endorsement. 2 the radio by that dashboard is not a CB radio that is a interior/exterior radio for the driver to communicate with the passengers, this why there were speakers along the side of the bus on the interior. 3 The amber warning lights would only work with the door closed, the arm on the front bumper is to make the students cross where the driver can see them if they need to cross the street. 4 There are more things than just brakes handled by air pressure, the front door is controlled by it as well, that would explain why the air pressure went down when you messed with the door controls. 5 to ease your concerns regarding the brakes when the bus's air pressure drops down to between 30 to 35 psi the spring brakes/parking brake engages which will keep the vehicle from moving, the way to test the brakes is building up to governor cutt off (150 psi) turn engine off, let gauges cycle (come back to 0), switch to the run position, release parking brake hold brake pedal down, when gauges settle time out 1 minute you should lose no more than 2 psi, then you would pump the brakes down, at between 70-60 psi you should get a warning buzzer and dashboard light to come on, then keep pumping at 40-30 psi you should get the parking to pop out/apply, then you'd start the engine up to build the pressure back up. If you're parking the bus and leaving it then you should set the parking brakes. Also just a side note that bus has a weird door control lay out lol

Air brakes actually have two types of brakes. Foot brakes and Parking brakes. Before starting a journey, one push in a yellow tractor Air Brake valve and a Red Trailer AB Valve on the dashboard. That pressurized the entire system to release the Parking Brakes and allow the vehicle to move. During movement, pushing the foot break activates a second portion of the system and applies the same break pads. In essence, they preform in the same way your car brakes do. If the air hose to the trailer spring a leak or breaks, air pressure is lost thus applying the parking/emergency breaks and the wheels won’t turn until repaired. If you’re driving along on an interstate and you see four skid marks appear at the same time and then vier off to the shoulder, some poor unlucky driver just lost air pressure in the trailer breaks

Hope you enjoyed the Oklahoma weather. I bet it was very cold when you got back to Indiana

I'm a truck driver. If your airline busts your brakes will lock up. When you pull the parking brake you release the air from the system, same concept if you break a line.. air brakes are probably the best braking system ever built

It also has spring brakes that hold the vehicle in place when you pop the knobs out.

That van is definitely a great deal! It would be cool to see you have the van and be able to haul all your tools. Then you would be able to do all of your work on your "Will it make it home?" videos! :)

Great walk around, great workhorse van😎🔥👌

Yes I miss that copart walk around but I like all your videos.

Hey Randy the door actually does function if you look right above the door there’s an emergency release button. you can twist.

HAPPY THANKSGIVING FROM SOUTHERN KENTUCKY

That e 250 van would make a great work truck. We have a few F 350s and we have to use two of those GB 150 jump packs to jump start when the battery’s are dead. As far as the bus the air system will leak air as it sets. It usually will drop to around 100 pounds and then the compressor will kick on and bring the pressure back up.any air leaks it has is a easy fix. Don’t worry it will not roll if it hits 60 pounds of air the brakes will set lock up it won’t roll. When you pull the brake valve the brakes lock anyways. It will not roll unless the brakes are way out of adjustment. It has air brakes so you need a cdl endorsement

I agree with you on the AT&T van, Randy. It would make a good tow pig with all your tools inside. A better vehicle would be a decommissioned box ambulance with a turbo diesel engine. The ambulance even has a bed in the back in case you need to take a nap. The ambulance also has roof lights in case you are recovering a car at night.

I have had several at&t vehicles that thing you were asking about on the side of the van is a lockbox you will see them on every At&t vehicle it is a spare key but the mechanic shop is the one with the keys to the lockbox so they can leave the vehicles at the maintenance shop without leaving the keys in the vehicles

Randy that 6.7 ford would be perfect for traveling and buying cars. I love the idea of this and I think it would make great content!

Randy, no air and the brakes automatically lock on. Air brake chambers are usually only fitted to the rear axle.

Randy you should make a video for the Chevy avalanche 2005 and upper

I'm going nuts wanting to explain about the air system. You need to know as part of the CDL testing. There a range that the air needs to be at. The compressor kicks on when low, shuts off when high.

Nice video Randy

DING DING DING !!! You win !!! That is a spare key holder that you wondered what is and guessed spare key holder. The driver assigned to that truck KEEPS HIS KEY. Now the tow truck drivers who have the AT&T account and all the AT&T authorized service techs have the key to that spare key container which is the same on all the trucks, so they can get to the spare key for towing and service and they put it back when they are done. ONLY authorized tow truck operators and service techs have that key and they put down a hefty deposit to have that key. But yes, you guess was 100% on target. Now you KNOW.

that van would make an awesome RV conversion. van lifers should definitely be looking at vans from copart.

Loved the video Randy! But ehmm, where was the bidding a "SCHOOL BUS!!!"🤪Little klick bait goin' here huh

Hey brother next walk around could you do one of the trash trucks or waste management trucks I’m sure your audience would love it and again thanks for your hard work in making these knowledgeable and entertaining video I watch you every day we’ll have a good thanksgiving you and your family

My uncle had one of those vans to haul his tools back when I worked under him as a sub contractor. It blew spark plugs multiple times. Took us like 10 hrs to tap it and do the sleeve thing. Started going down the road for 5 mins just for it to blow right back out. It was yerrible lol.

Good vid randy

I love all the vids you make randy but I did miss the copart walk arounds

CNG stations are pretty common in your area but you get out of Oklahoma and they are few and far in between.

Crazy as hell 🤣🤣🤣 you and Mike ....

Bendix air breaks have a spring inside. if they loose air pressure they lock to full break mode.

The air leaking from those components is relatively normal. Holding air pressure for too long is bad if it’s too high. Now if those fittings are GUSHING air, you should be worried. But that slow hiss is fine.

I believe the air pressure is used to open the brake shoes. They are normally closed by spring pressure.

I like the Copart walkarounds

Rear brake chambers are spring brakes. It uses air pressure to release the spring brake which is the parking brake. If you loose air pressure it sets the spring brake or “parking brake” and stops the vehicle. Also if you get less than 20 psi in the system it automatically set the parking brake.

I have to admit Randy I'm addicted to your videos 😆

Also it's not going to Regen with out being up to operating temp, but it flashing I think it does have an issue in my FedEx 18 wheeler it just stays on when it needs Regen, but the computer goes thru a check list to make sure the engine is ready to run for that long at a high idle

Air brakes are basically backwards, they rely on air to work, with no air they would lock up! Think of a tractor trailer when it locks up those skid marks is because it lost air lol but love the vehicles in this video randy!! Your making big moves lately!!! I remember the old days!!

Missing the walk arounds but loving the side content

Air Brakes on ALL Commerical Vehicles, are called Spring Brakes, Spring Brakes work in reverse to what you are saying in the video. If all of the air pressure is lost in the system, the brakes are actually stuck on until the air pressure is built up again. The reason for this is, that air is used to release the brakes, and the very powerful spring is used to apply the brakes. There are redundancies built into air brake systems for this very reason, especially on a school bus with kids as their only cargo, braking systems need to be built to take on any issues that come up. I hope this eased any concerns for future Commercial Vehicles you come across!

On vehicles with air brakes when any component fail and loose air pressure the brakes will lock up, when you start up and buit air pressure then they will unlock when you release them. Hope that helps

On the C2 bus, look up multiplex electrical system regarding that bus...the best place for that bus is nose first in a shredder.

That vault on the side of the van is for a spare key. Easy to drill out supra makes them, we have them on all of our fleet vehicles

Without air pressure, the brakes stay on. Also, to do a re-gen with the switch, you have to hold the switch for 4-10 seconds, depends on the engine, model atc. My truck it's 8 seconds I believe. As far as the 26,000 lbs, I do believe that is only if you use it commercially because I know those old folks in those huge motorhomes that are the size of a Greyhound bus don't have a CDL to drive them. People buy school buses and make them into campers and don't need a CDL to drive them.

The door issue you have to flip a switch on the inside Ambers door work if doors open, and brakes well if anything is trying being used like the door it’s going to leak

The door was not operational because the emergency open was activated and that’s how the open and close function works manually when the bus driver is finishing or starting a trip, to get the door operational you just flip the emergency door release switch, that’s also why Air was coming out of the door. (In the event of an emergency the Air pressure won’t hold the door closed)

Well Randy the breaks rely on air pressure to release the parking brake if out of air automatically parking brake will engage. It has double diafragma un the back brakes one set of diafragma disengage the brakes no air it will not go anywhere

Love the walk arounds...but only when you have time. 👍

The air leaks are easy to fix and the motor sounds very good. It will not roll no air brakes lock

Omfg a school bus yesssss is that’s my dream right there no idea why but I always loved school buses

36:06 airpressure leak will engage brakes until pressure is restored. Needs airpressure to drive, not for stopping.

The regeneration button on those Freightliner C2/M2's need to be held for around 5-10 seconds. We have the M2 single axle tractors for my job. Essentially the same nose, and dashboard as the school bus in the video

look at all those intelligent people, I grew up across from a auto salvage yard that also had rubbish removal business ( city pick-ups and container service) even drove a Mack. it seems all the men in my family started out working there, 7 boys and 7 girls but only the men worked there. was a great place to work. 56 Nomads to Edsel's, you name it it was there even a BMW Isetta.

Thomas Built Busses Freightliner C2 Saf-T-Liner!

Hi Randy what are you going do with school bus 😂😂 I now about school bus I used to work on them part time job

Good Morning My Good Little Bro Randy Lee Shear Of Auto Auctions Rebuilds

I know that you don't know much about this school bus, but it is a Thomas Saf-T-Liner C2, and yes, Freightliner made the chassis and Thomas made the body. The engine is powered by a Mercedes-Benz MBE 926 diesel. This bus was operated for the Allegany County School System in Maryland (this bus is not affiliated with ACPS it is a private contractor hired by the school system). And probably not all of the Saf-T-Liner C2s have the same spec due to the state. And also if you want the amber lights on you have to turn on the master switch and then turn on the ambers but you need to make sure that you have the door fully closed. And when you thought that the marker light switch would turn on the school bus sign it actually doesn't. You need to have a bus that has a switch called DEST SIGN (destination sign). That would be for the school bus sign. But since this doesn't have one, there would be no way to turn on or light up the school bus sign. By the way, the maker lights are clearance lights around the bus. I know this was a really long comment, but I just wanted to give you a tip about this C2.

Randy the 8th digit is the engine 5, W & L are 5.4 codes

He is for primary the Gage right below is asked for secondary because you have two air tanks and yes they drop and they rise and they drop and they rise that's normal.

Actually been liking the life kinda vlogs coming from you

The whole purpose of air brakes is the Air RELEASES the brakes. If it loses it's air, then brakes lock up so it can't roll. This is why they are safer and used in commercial trucks. Where as if you lose brake fluid, you lose your brakes. With air brakes, if you spring air leaks, then your brakes lock up. In short, air brakes are fail safe. When they fail, they stop you. Juice brakes. Brake fluid brakes fail, you crash. Most of those leaks are very minor and no big issue. It's common if you spin that Park brake button, you'd tighten up one leak. The air seat might have had a leak that you were hearing. Air horn hose might have had a leak, air door mechanism might have had a leak. So long as the engine running keeps the pressure at a safe level to keep the brake open, then you can roll and drive it.

I have cdl and when you pull the parking brakes switch it lets the air out to set the parking brake.

36:10 it would auto apply the air brake until safe, so it would be fine. As a major bus fan and expert I get asked this all the time.

The air brake system uses the air pressure to release the brakes, if you loose all air, the brakes will be locked and the bus will not move

I really do like your walk around videos, keep up the great work Randy

I love the old ford vans. I am a Ford fan boy though. In the state of Iowa if you buy a School bus for personal use only not commercial use you do not need a CDL unless you intend to use the bus for commercial purposes.

The bus door probably doesn't close because the bypass valve is open. There should be a lever near the top of the door that has normal and emergency positions. Emergency allows the door to be opened and closed by hand. Normal allows the switch to control them.

i miss the walk around but i know you have a lot going on so i’ll be patient lol

Looks like your major question was answered. In air brake systems, the brakes are spring applied and pneumatically released. Put simply, it takes air pressure to release the brakes by overcoming spring pressure. If you have an air leak, the brakes don’t just lock up while driving down the road. That would be dangerous. Instead, what the driver will experience is brake drag. Then difficulty getting the brakes to release until the pressure drops so low that the brakes will be fully engaged. That is all. Unless the brakes are caged then, your initial concerns would be spot on. G&B Automotive!!! Waynesville MO

A Bark bus. Never heard of that. How adorable.

The door has a emergency switch inside that has to be switch to normal to activate the door you can drive a school bus as a non cdl many people are doing a bus conversion all in all it works be fun to have a bus for personal use I’m also a bus driver my self

Hey randy when you de have the E brake on your not suppost to push the brake paddle.

You have to throw the switch above the door to allow the doors to operate properly on a bus

Randy to shut the air door there is a red switch that is a air release. Door is most likely in emergency mode for when the driver gets off the bus flip it to normal and have the door switch on the dash in the closed position and the air door will close and work via the door switch on the dash. Also get the stereo working the speakers on the c2 are not half bad. My bus driver would crank the tunes loud when I was in school. He was a great bus driver. We'd rock out on the way to school.