I have had hell with these dryers on 3 different trucks not supplying air to the tanks and air bags. But I have found that backing off the pressure valves on the bottom one turn will allow air to come out of the ports.
If we were to install an alcohol evaporator on the air system, it would go after the air dryer correct. But now would we plug the primary and secondary outlets and then take the evaporator exit and split it in 2 lines one to each tank?
This dryer is really not made for an alcohol evaporator to be installed. You would have to splice the line leaving the dryer tank to the wet tank to avoid alcohol getting in the dryer cartridge and plugging your system.
Sorry for the delay. I am thinking you are talking about one of the 4 pressure protecting valves in the dryer that allows air to be delivered to air tanks and other air components in the truck. it does not make sense that the valve would open after the truck has sat for 30 min’s as these valves need more air pressure to open. the first valve opens at 106 PSI then the other three open by the time you get to 110PSI. If one of the valves was sticking and your air system was over 106PSI, I guess it might open up but you should notice that something is missing air pressure somewhere in your truck. So this might be something to check. Could one valve be sticking and something missing air?
Hello, I have a question. Why does mine returns air through the supply line even when engine off, truck looses all air in less then 30 minutes. Dont see any check valve and no one talks about that. This is my fourth dryer trying to solve the issue.
There is a check valve under the governor. You have to take the governor off to get to it. It's purpose is to check the air tanks from draining so this should help to solve your issue.
Just installed a new one, builds to 130 just fine, then turns the compressor on when it gets to 115. Really annoying because that small variance makes it so the compressor is running too much. Can this be fixed?
A 15-20 PSI spread is the industry standard. I suggest that you check for any leaks in the unloader line or purge valve at the dryer. A small leak on the unloader side of the governor will cause the dryer to cycle. This pressure must remain constant. There is a check valve between the governor and the body of the dryer that might be dirty and causing the valve to stick open which would cause the unit to cycle as well. Hope this helps.
There is a port on this dryer for the primary tank and a port for the secondary tank. The pressure protection valves are pre-set so if these have been adjusted, you may have closed off one of the ports to one of your tanks.
Hello I have a question about the governor. I replaced mine but with am adjustable version. I notice my compressor now has a harder time to build air. Does this dryer only take non adjustable governors only??
Sorry for the delay, you should not remove the governor from the AD-IS dryer as it is an integrated system. I would recommend that you install an AD-9 dryer instead of the AD-IS dryer.
I would check to make sure that your supply line from the tank to the governor is in the right port. Must be a supply port. Bottom section of the governor.
@@kelvingonzalez2774 Perhaps the governor is defective. The governor controls when the compressor pumps and when it shuts off. When you say the dryer unloader is not working are you saying the dryer will not purge? If it will not purge it needs to be told when to purge which comes from the governor. The actual unloader is in the compressor. Please feel free to give us call toll free at 1-877-243-0442 and speak with a technician if you require further info.
@@jwgloballogisticsllc1406 You won't be able to tell unless the pressure protection valves have markings on them noting the "set" position. All of the pressure protection valves should be marked in the casting. The issue you are having is with the primary tank so find primary valve and back it off a quarter turn at a time and test it. Keep trying until hopefully it fixes your issue.
Hello thank you for the Vidio what is number side and name for the fitting for the by pass I have the problem one time in Miami and the roads service take out 750 just for chance the air dryer I have the new part other day I have the problem I chance the air dryer but is good to know the by pass Thanks other question for air dryer what is the difference in aftermarket and original gracias
Hello, you can put the bypass valve together yourself with a tee fitting and a few bushings from your local fitting shop. In regards to aftermarket vs OEM, they should be like for like but there is different aftermarket quality out there.
You guys really need to make the plastic fittings for the pressure protection out of brass because here I am once again sitting on the side of the road because it’s broken
Thanks for this video, solved my problem without paying a shop to figure it out.
Awesome glad to hear Joshua.👍
Rare for anyone to show a bypass alterantive. Thumbs up
I have had hell with these dryers on 3 different trucks not supplying air to the tanks and air bags. But I have found that backing off the pressure valves on the bottom one turn will allow air to come out of the ports.
I would like to buy that bypass valve to keep in my truck. Is there any link or part number on that bypass valve you can give us?
You can put the bypass valve together yourself with a tee fitting and a few bushings from your local fitting shop.
If we were to install an alcohol evaporator on the air system, it would go after the air dryer correct. But now would we plug the primary and secondary outlets and then take the evaporator exit and split it in 2 lines one to each tank?
This dryer is really not made for an alcohol evaporator to be installed. You would have to splice the line leaving the dryer tank to the wet tank to avoid alcohol getting in the dryer cartridge and plugging your system.
I got a question one of those tiny valves opens after the truck is been parked for 30 min or more, do you know what’s causing it??
Sorry for the delay. I am thinking you are talking about one of the 4 pressure protecting valves in the dryer that allows air to be delivered to air tanks and other air components in the truck. it does not make sense that the valve would open after the truck has sat for 30 min’s as these valves need more air pressure to open. the first valve opens at 106 PSI then the other three open by the time you get to 110PSI. If one of the valves was sticking and your air system was over 106PSI, I guess it might open up but you should notice that something is missing air pressure somewhere in your truck. So this might be something to check. Could one valve be sticking and something missing air?
Hello, I have a question. Why does mine returns air through the supply line even when engine off, truck looses all air in less then 30 minutes. Dont see any check valve and no one talks about that. This is my fourth dryer trying to solve the issue.
There is a check valve under the governor. You have to take the governor off to get to it. It's purpose is to check the air tanks from draining so this should help to solve your issue.
Just installed a new one, builds to 130 just fine, then turns the compressor on when it gets to 115. Really annoying because that small variance makes it so the compressor is running too much. Can this be fixed?
A 15-20 PSI spread is the industry standard. I suggest that you check for any leaks in the unloader line or purge valve at the dryer. A small leak on the unloader side of the governor will cause the dryer to cycle. This pressure must remain constant. There is a check valve between the governor and the body of the dryer that might be dirty and causing the valve to stick open which would cause the unit to cycle as well. Hope this helps.
Hello there, my problem it's that the air dryer doesn't refill both tanks and the air compressor it's good
There is a port on this dryer for the primary tank and a port for the secondary tank. The pressure protection valves are pre-set so if these have been adjusted, you may have closed off one of the ports to one of your tanks.
Hello I have a question about the governor. I replaced mine but with am adjustable version. I notice my compressor now has a harder time to build air. Does this dryer only take non adjustable governors only??
You should only use a non-adjustable governor with these dryers. Part # 5004049.
Sorry you can use an adjustable governor but you must set it to 130 psi.
Quick question. Can I eliminate governor on dryer if I have one on compressor? I’ll still run a line to send signal to dryer.
Sorry for the delay, you should not remove the governor from the AD-IS dryer as it is an integrated system. I would recommend that you install an AD-9 dryer instead of the AD-IS dryer.
Thanks for the reply, I was thinking the same thing. I have a tu-flo 550 compressor . I think that one needs a governor as well.
Help...I just installed one new but it doesn't sent air out the unload valve and compressor keeps building pressure and nothing
I would check to make sure that your supply line from the tank to the governor is in the right port. Must be a supply port. Bottom section of the governor.
@fleetproducts the supply line from the tank to governor? I have one line from the tank going into reservoir B on the governor
I got the supply from compressor going into the supply in
@@kelvingonzalez2774 Perhaps the governor is defective. The governor controls when the compressor pumps and when it shuts off. When you say the dryer unloader is not working are you saying the dryer will not purge? If it will not purge it needs to be told when to purge which comes from the governor. The actual unloader is in the compressor. Please feel free to give us call toll free at 1-877-243-0442 and speak with a technician if you require further info.
@fleetproducts I found the issue, it was the governor
Air pressure to secondary tank builds up great but primary builds super slow… no leaks found, compressor is good. What to do?
Were the pressure protection valves adjusted at all? This could be causing the issue.
@@fleetproducts That’s what I was thinking also… but I’m concerned because they said not to adjust them.?
@@jwgloballogisticsllc1406 Yes these pressure protection valves all come pre-set so if they are adjusted in any way, issues will likely arise.
@@fleetproducts How would I know if they have been adjusted? I bought the air dryer new… but having issues with my air compressor… now this?
@@jwgloballogisticsllc1406 You won't be able to tell unless the pressure protection valves have markings on them noting the "set" position. All of the pressure protection valves should be marked in the casting. The issue you are having is with the primary tank so find primary valve and back it off a quarter turn at a time and test it. Keep trying until hopefully it fixes your issue.
Hello thank you for the Vidio what is number side and name for the fitting for the by pass I have the problem one time in Miami and the roads service take out 750 just for chance the air dryer I have the new part other day I have the problem I chance the air dryer but is good to know the by pass Thanks other question for air dryer what is the difference in aftermarket and original gracias
Hello, you can put the bypass valve together yourself with a tee fitting and a few bushings from your local fitting shop. In regards to aftermarket vs OEM, they should be like for like but there is different aftermarket quality out there.
What I have to do with the 4 safe valves if I torn to adjust
We recommend that you do not adjust the pressure protection valves as they all come pre-adjusted.
Anyone know where you can get these dryer rebuilt or exchange
Give our parts department a call at 1-877-243-0442 and they can help you out.
Where can I get brass pressure protection valves tired of mine getting broken by rocks
Also tired of stealing them out of new air dryers
@@davidmichaelis49 Sorry but I am not aware of brass pressure protection valves being offered for this unit.
Where can I get replacement plastic ones
@@davidmichaelis49 I would try Bendix for replacements.
You guys really need to make the plastic fittings for the pressure protection out of brass because here I am once again sitting on the side of the road because it’s broken
Whats the part number for this Dryer??
There are a few different part #'s but the most common would be 5010133X.
@@fleetproducts thank you...🙏🏼
Can these be rebuilt
Yes they can be rebuilt.
You don’t took more dips exactly