What do you do in situations where the abs light just stays on? And is not giving a blink code, but just remains on
@kimstrong74342 күн бұрын
Brilliant! Thank you. I now know what the mechanic was talking about.
@AMYWALTON-c3u28 күн бұрын
This was an incredible video; very informative and helpful. Great job!
@juliosantos9289Ай бұрын
Good video man. I work on school buses and we constantly go thru brakes, slack adjusters and S-cams. Good info. I like how you mentioned to use a tool to check the play on the S-cam. We take apart the brake and do the check on the S-cam inside the brake assembly. I never thought to do it on the slack adjuster end. Instead of taking the brake assembly apart you just take off the slack adjuster after you do your travel and adjustment test. Thanks. I'll pass the info to my shop mates. Thanks.
@sodbuster518ableАй бұрын
Normal brake application would only be 20 to 30 psi, any more than that psi would be a panic stop.Professonal drivers doing Normal downshifting, would very rarely apply more than 30 psi.
@BulletTrucking99Ай бұрын
Absolutely phenomenal video man.
@fleetrepairsolutions6372Ай бұрын
Thank you!!
@manuelantonio3394Ай бұрын
I have a damaged valve but am stuck in a small town. Is there a way to bypass the system to get it going to the next town for the correct replacement part?
@fleetrepairsolutions6372Ай бұрын
Sorry for the delayed response... All depends on what is wrong with it. Is it leaking air from the damage? You can bypass the system by plugging the lines feeding the valve, (the line from the pressure protection valve and the line connected to the emergency supply) but with without parts like brass fittings you'll have to find some creative, non DOT approved ways to block air flow going to the valve.
@1waukeshaАй бұрын
Thanks for sharing! Good information to know
@AAM_SAMАй бұрын
Nice
@fleetrepairsolutions6372Ай бұрын
Thanks
@wilberleivaguerrero9427Ай бұрын
Excelent vídeo, fast, detailed and very very useful, thank sir.
@djwordsundaybestprodj717Ай бұрын
Is this dangerous to drive
@JesseHofer-jj7ljАй бұрын
Sorry to be a pain but would you have a part number by any chance?
@fleetrepairsolutions6372Ай бұрын
The Meritor part number for the thermal plug is H2200-02.
@qroadside2 ай бұрын
Need to do a load test to be sure it can handle the load
@buck4mt2 ай бұрын
Thank you for this video. I knew I had a brake issue, but thought with adjustments it could be solved. After watching this, I see now it needs to be replaced. I’ll stop wasting my time messing with it and put my efforts towards replacing it. Thanks again.
@adampilkington83792 ай бұрын
You’re an incredible mechanic!! Thanks for ur advice!! Cheers 🍻
@realwildwildwest3 ай бұрын
Just the info I needed . 👍🏼
@lfcfan45573 ай бұрын
While back I had the same problem when my team driver was on duty, he didn’t pay attention to the warning service light and the pressure built up in the axle then blew the cap window, drained the oil, Efed up the bearing, and I had to reweld the damaged spindle end and changed everything else involved. Now, on the other axle, I can hear a strong leaking sound from the system, and I know for sure there is a little bit of bubbling in the oil that I can see from the hub cap window, so I’m guessing it’s the same problem. Thanks to your video, I can better service the issue, but I thought you would check the connection of the supply line in the new hub for leaks before you bolt it back on. Thanks again, great upload. 👍
@bhagatkhaira24853 ай бұрын
Love your videos. Everything is explained in simplest way.
@bluebirdwanderlodgerenovat97154 ай бұрын
A great video! Thanks for the detail!
@c.a.mcneil75994 ай бұрын
Thanks for this instruction video. I was able to purchase a kit. My concern is my liners have a texture surface do you think it will still work? Thanks
@fleetrepairsolutions63724 ай бұрын
I think this should still work. I would mark where the patch will go on the wall and lightly scuff the area first.
@silverdrillpickle75964 ай бұрын
Yes the red line supplies the relay valve…. Unless a little bug makes his home in the emergency gladhand. Seen this too many times
@peyton.c83994 ай бұрын
I have a question that is completely off topic but i think you might know the answer to. How many brake applications are needed to test reservoir capacity? . I have asked the guys that i work with and they had no idea cant find anything online . it was question on my test, any help is appreciated-Thanks
@fleetrepairsolutions63724 ай бұрын
Sorry for the delayed response... FMVSS 121 states that the combined volume of all service reservoirs and supply reservoirs shall be at least 12 times the combined volume of all service brake chambers. So you should be able to make 12 brake applications from a fully charged tank.
@peyton.c83994 ай бұрын
@@fleetrepairsolutions6372 Thank you, does this also include trailer?
@fleetrepairsolutions63724 ай бұрын
@@peyton.c8399 I believe so... considering the wording is "the combined volume of all service and supply reservoirs. Also FMVSS 121 gives specific regulations just for trailers: "S5.2 Required equipment for trailers. Each trailer shall have the following equipment: S5.2.1 Reservoirs. One or more reservoirs to which the air is delivered from the towing vehicle. S5.2.1.1 The total volume of each service reservoir shall be at least eight times the combined volume of all service brake chambers serviced by that reservoir.
@peyton.c83994 ай бұрын
@@fleetrepairsolutions6372 Thank you for your help, hopefully I will pass the red seal this time lol
@LmanTrojan12124 ай бұрын
Awesome tech tip videos you have going. Keep uploading would ya?
@jackiechiles2704 ай бұрын
Could there have bn a possibility it could have been SV2?
@fleetrepairsolutions63724 ай бұрын
Doubtful. Given the symptoms SV1 had to be the issue. SV2 controls open and close, after oil is diverted from SV1. The fact that it was only going up and down told me the SV1 was not working.
@meharyyohanes40395 ай бұрын
Waw thank you so much real explanation keep posting useful videos like this
@philipadcock35085 ай бұрын
Make a video for the tractor protection valve?
@philipadcock35085 ай бұрын
Dude keep em coming. The air brake system videos are priceless. I’m studying a lot right now and I understand the operation of most of everything but when reading in a book it’s hard to retain the information. Your videos help a lot.
@josephalberta11455 ай бұрын
Very informative and well presented. I was told my Prevost slack adjusters are at the limit. Might be a job I will be doing soon. Subscribed.
@pedropedro28375 ай бұрын
Thank you
@peterpower04955 ай бұрын
Thanks for the explanation of what that little thing does. For a $25 part when they go bad it's a big PITA. I might keep a spare one of these in my rig now just cause this is the second time I've had trouble with one.
@andrewdrumfire80236 ай бұрын
Straight to the point and great explanation of how the system works, greatly appreciate the video sir !
@moenimation11896 ай бұрын
Wry informative thank you for taking the time to record this video and share it 👍🫡
@artifacthunter14726 ай бұрын
It’s usually the pressure protection valve!
6 ай бұрын
What if you only seem to develop an axle leak after driving for a while? Being the morning when i air the system up it never leaks but after running for a little bit i can hear it when i do a walk around.
6 ай бұрын
What if you only seem to develop an axle leak after driving for a while? Being the morning when i air the system up it never leaks but after running for a little bit i can hear it when i do a walk around.
6 ай бұрын
What if you only seem to develop an axle leak after driving for a while? Being the morning when i air the system up it never leaks but after running for a little bit i can hear it when i do a walk around.
6 ай бұрын
What if you only seem to develop an axle leak after driving for a while? Being the morning when i air the system up it never leaks but after running for a little bit i can hear it when i do a walk around.
6 ай бұрын
What if you only seem to develop an axle leak after driving for a while? Being the morning when i air the system up it never leaks but after running for a little bit i can hear it when i do a walk around.
@fleetrepairsolutions63726 ай бұрын
Honestly I'm not sure what would cause that, but if air is coming out of that tube in the axle at any time there is a problem. Either a malfunctioning auto inflate hubcap or a leak in hose inside the axle feeding the hubcaps.
@user-xh5rm9wp9y6 ай бұрын
What is remote your holding never seen one
@elebeu6 ай бұрын
Definitely saving this video for future reference. I ran into this same situation last week, although I didn't know what the value did or was called. I removed the valve and substituted a simple fitting temporarily to verify the problem, then installed a new valve. Thanks.
@fleetrepairsolutions63726 ай бұрын
Awesome! Thanks!
@loudawg4526 ай бұрын
Where’s part 2? Air accessories and other .
@ts79896 ай бұрын
Best and knowledgeable explanation. Thanks.
@isladelobos6 ай бұрын
This vídeo is very useful for me. Thanks for share.
@Anthony-bs2tn7 ай бұрын
Nice Work, Thank you Is there a bypass tool when one air bag will not pull one set of pins but the other one works, seems like the bad one is not getting air to it, flat.
@cameronimmel34487 ай бұрын
I have a very similar problem except mine leaks out of the backside of the prm body when the trailer brakes are not set. Supply valve closed, brakes disengaged and leaking out the backside of the prm
@fleetrepairsolutions63726 ай бұрын
Check the tire pressure at a few positions and see if the pressure is over the target pressure listed on the controller. The pressure relief module is designed to let air out of the tires is pressure is 10 psi over target. If you tire pressure is high, the PRM is doing it's job. But if tire pressure is normal I would suspect the PRM itself is bad, or the inflation/deflations pressures are set incorrectly, causing the system to constantly add, then relieve air pressure.
@VOLVOUS7 ай бұрын
Best explained system diagram You explain so well thank you
@sourdiesel80337 ай бұрын
Will the ppv cause the brakes to not engage when pressing the brake pedal am having trouble with a flatbed not wanting to break when am pushing the pedal their is a delay
@fleetrepairsolutions63727 ай бұрын
The PPV shouldn't be causing any brake lag/delay issues. Assuming you've confirmed the tractor isn't the issue by testing on another trailer, I'd check all the plumbing for the service brakes from the blue glad hand to the service relay valve on your air tank. Look for any kinks or obstructions in the lines. If all lines look good, look for any mechanical reason for the delay ( seized S-cam bushings, worn/ inoperative slack adjusters ect.) If everything checks out I would look replacing your service relay valve.
@sourdiesel80337 ай бұрын
@@fleetrepairsolutions6372 I really appreciate the help sir thank you