trimster Posted March 19 Report Share Posted March 19 So, I adapted the trailer air supply to give air for tires, etc. Used the other day to fill and top off tires. Today, I activate the trailer supply at the dash and get a mear puff of air out of the hose. No sound of air leaks. It's like there's just a trickle of air now. Where do I start looking for the problem? Quote Link to comment Share on other sites More sharing options...
Deezl Smoke Posted March 19 Report Share Posted March 19 Ok, captain obvious here. I do not mean any disrespect, but I know I can do this, so.......are you sure you have the hose hooked to the red glad hand? Quote Link to comment Share on other sites More sharing options...
trimster Posted March 19 Author Report Share Posted March 19 It's been this way since I built the bed and ran the airline. Always worked fine. So yes, RED glad hand. No disrespect. Quote Link to comment Share on other sites More sharing options...
HERO Maker Posted March 19 Report Share Posted March 19 Explain your adapting the trailer air supply to give air for tires. Quote Link to comment Share on other sites More sharing options...
trimster Posted March 19 Author Report Share Posted March 19 I used the original coiled airline from the gladhand. Connected 25' of air hose to the rear of the bed. That gives me a 3' pigtail to air up the hitch if needs be or connect an additional air hose. Simple setup. Quote Link to comment Share on other sites More sharing options...
ddm502001 Posted March 19 Report Share Posted March 19 Tractor Protection Valve is failed. Cylindrical usually attachment point of the air lines to the chassis. Should look similar to this. Quote Link to comment Share on other sites More sharing options...
trimster Posted March 19 Author Report Share Posted March 19 45 minutes ago, ddm502001 said: Tractor Protection Valve is failed. Cylindrical usually attachment point of the air lines to the chassis. Should look similar to this. So I'll find this drivers side. Rear of cab where the glad hand attachment is? Quote Link to comment Share on other sites More sharing options...
Sparky242 Posted March 19 Report Share Posted March 19 My truck is a 2000 Volvo and there is a valve that looks like that under the left rear corner of the cab. The only way I can get to it is to remove the fairing. It might have been move when the last owner had the bed installed but that is where mine is, I have my air hose connection connected to it also. Quote Link to comment Share on other sites More sharing options...
rickeieio Posted March 19 Report Share Posted March 19 Bob, I'm reading in your first post that the air flow is very small, but still some flow. Correct? If so, the valve could be fine, but there is a restriction in the line somewhere. Remove the line you installed in the valve up front and see if you have flow there. Quote Link to comment Share on other sites More sharing options...
ddm502001 Posted March 19 Report Share Posted March 19 Both descriptions are correct, some were actually INSIDE cabs with a exhaust line to outside(Primarily IHC Products). Is classified as a TP-3 by Haldex, buy NEW. Quote Link to comment Share on other sites More sharing options...
trimster Posted March 19 Author Report Share Posted March 19 1 hour ago, ddm502001 said: TP-3 by Haldex, buy NEW As in Volvo expensive new, or aftermarket new? Quote Link to comment Share on other sites More sharing options...
Darryl&Rita Posted March 19 Report Share Posted March 19 Just now, trimster said: As in Volvo expensive new, or aftermarket new? NAPA, even carries Volvo parts for less. Quote Link to comment Share on other sites More sharing options...
trimster Posted March 19 Author Report Share Posted March 19 Big thanks folks. Travel day today. Alamogordo to Tucson. I'll dig into it there. Quote Link to comment Share on other sites More sharing options...
Deezl Smoke Posted March 19 Report Share Posted March 19 10 hours ago, HERO Maker said: Explain your adapting the trailer air supply to give air for tires. For example. Walmart link to air hose for tire fill from semi truck Quote Link to comment Share on other sites More sharing options...
Deezl Smoke Posted March 19 Report Share Posted March 19 1 hour ago, rickeieio said: Bob, I'm reading in your first post that the air flow is very small, but still some flow. Correct? If so, the valve could be fine, but there is a restriction in the line somewhere. Remove the line you installed in the valve up front and see if you have flow there. I also wonder if maybe a rubber air hose in the system has separated and the internal liner has collapsed, which might explain the initial puff, then trickle. ? Or maybe if the glad hand is still being used, the rubber seal has slipped into the air stream? Quote Link to comment Share on other sites More sharing options...
ddm502001 Posted March 19 Report Share Posted March 19 Most all of the plumbing to/from these should be Nylon Tube. Quote Link to comment Share on other sites More sharing options...
HERO Maker Posted March 19 Report Share Posted March 19 (edited) This reminds me of a time when one of our original HDT guys (I am blanking on his name) had actually just left Retama in the RGV and was noticing something really different about his braking! After disconnecting lines starting at his glade hands at the truck, and working towards the trailer, he discovered a mud dauber had clogged his line just inside of where the 1st line from the truck connects to the transition part going into the trailer. Yes, he had to take the individual fittings off and blow air through the line to know where his blockage was. The dauber had entered through the disconnected glad hand and went all the way through that twisting springy line to just inside the trailer! That is when a lot of us started using glad hand covers, in many different styles, to stop that from being a hassle. Good luck. Edited March 19 by HERO Maker spelling Quote Link to comment Share on other sites More sharing options...
lappir Posted March 19 Report Share Posted March 19 Rocky, Good to see you posting again. Rod Quote Link to comment Share on other sites More sharing options...
HERO Maker Posted March 19 Report Share Posted March 19 Thanks Rod. Just missing everything about being on the road again! But, in time! Quote Link to comment Share on other sites More sharing options...
trimster Posted March 20 Author Report Share Posted March 20 Soooo, it's nice that I built the deck plates in sections so I can just undo a few screws and have access to everything under the bed. And lookie what I found. The airline got pinched between the frame of the truck and the bed sub-frame. Ya Huston, that would be the problem. New line ordered. Quote Link to comment Share on other sites More sharing options...
rickeieio Posted March 21 Report Share Posted March 21 Ditch the curly-cue line. Run a straight piece of line, and secure it to the wiring harness, other air lines, frame straps, anything to prevent it's getting in harms way again. Good thing you took a peek under there rather than just throwing parts at it. Quote Link to comment Share on other sites More sharing options...
jenandjon Posted March 21 Report Share Posted March 21 I like the removable deck plates. Thats on my list of things to do. My bed came out of a junk yard. I welded and screwed everything solid because when I ran the generator the rattles were loader than the generator itself. Quote Link to comment Share on other sites More sharing options...
trimster Posted March 21 Author Report Share Posted March 21 ran the generator the rattles were loader than the generator itself. I put vibration isolation mounts under the feet of my generator (actually for washing machines). Those cut 90% of the vibration being transmitted to the bed. as well, I put rubber strips between the deck plate and the beds frame. That stops rattling as well. Quote Link to comment Share on other sites More sharing options...
ddm502001 Posted March 21 Report Share Posted March 21 Glad you found Simple to Fix, and not expensive. Dave Quote Link to comment Share on other sites More sharing options...
jenandjon Posted March 22 Report Share Posted March 22 23 hours ago, trimster said: ran the generator the rattles were loader than the generator itself. I put vibration isolation mounts under the feet of my generator (actually for washing machines). Those cut 90% of the vibration being transmitted to the bed. as well, I put rubber strips between the deck plate and the beds frame. That stops rattling as well. I will look for some. Probably found at appliance stores? Quote Link to comment Share on other sites More sharing options...
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