air brake dryer?


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By massey ferguson 175 - 6 Months Ago
Greetings. Thank you for the privilege of posting. First time ever posting pictures, hope I got it correct. As per subject matter I think this is an air dryer. I want to install it in my 1964 Peterbilt, but the item has no identification markings . I do not know if I can rebuild it or if I should? Initially tried the search feature to no avail. Thank you.
http://forums.justoldtrucks.com/uploads/images/013a460c-b719-4a84-a506-f8ba.jpg
By Junkmandan - 6 Months Ago
Tis a cooler, for sure.   I don't recognize it as a dryer .


































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By Aaron - 6 Months Ago
In the Fresno area I wouldn't waste my effort to put a dryer on, I don't run dryers on any of the trucks here on the coast, just blow off the wet tank every couple days.
By Geoff Weeks - 6 Months Ago
It is a drier, but the mfg escapes me at the moment.  I run Bendix AD-4's exclusively.
By massey ferguson 175 - 6 Months Ago
Thank you for the responses. I have taken it apart it is fairly clean. It consists of a plastic spring cartridge full of wire mesh takes up only a third of the cylinder space. The other end has a micarda looking tube attached to the cap. It floats in empty space. A check valve on each head piece. I will post pictures later today of it disassembled .
Thank you for the suggestions, I will not use an air dryer your all correct central valley is dry enough. Tank drain valves are easy to get at. I pulled this part off my spare parts truck which is a 1970? model 289 Pete. Kind of interested in what its purpose was? Specially as the one individual mentioned it might be an air cooler. 
By tundra - 6 Months Ago
I think C R (Chicago rawhide) marketed that air dryer
By Geoff Weeks - 6 Months Ago
Me thinks you are right, was it call "Pure-air?" I just can't clear the cobwebs from that part of my brain.
By Tony Bullard - 6 Months Ago
Very unusual compression coupling.


What size are the fittings and how many ports were used? Looks to be a steel shell with a cast iron fined end. Maybe it was for a high pressure application and not original to the truck.
By Geoff Weeks - 6 Months Ago
I was wrong, called the "brakemaster" Turbo- AC and is shown in this PDF.
https://www.skf.com/binary/86-147914/457969.pdf
By Tony Bullard - 6 Months Ago
Thanks, Geoff. That explains it all. Leave it to JOT.

And tundra probably was correct. CR, Chicago Rawhide, is now part of SKF. 
By Geoff Weeks - 6 Months Ago
Yeah, it was originally a CR design. I remember one at the bus company back in the 80's I don't know who bought it, but they will not work with the European design compressor systems, where the unloader is in the outlet line and just dumps the compressor output. It sat in the store-room the whole time I was there.  
By massey ferguson 175 - 6 Months Ago
Thank you all again for the responses. 
Tundra provided the information that enabled me to google some information, info that has since been provided by others. The closest mine comes to any of SKF description is the Turbo AC. Except my example does not have the 12/24 volt heating element option. It is cast over.
Without the electrical option, the example I have seems to match up more with the Brake master model 62 or Mt 23508. 
Plumbing? My best estimate ( it was a 105* last week) top port is the outlet to the wet tank. Lower section has three ports. One is 1/4 inch for the governor, the other side inlet from the air compressor. Directly out the bottom is the exhaust port.
I have it disassembled and will post some pictures shortly.
By massey ferguson 175 - 6 Months Ago
http://forums.justoldtrucks.com/uploads/images/315f25cc-d592-42d0-975f-040e.jpgHopefully this picture can help with anymore info?
By massey ferguson 175 - 6 Months Ago
http://forums.justoldtrucks.com/uploads/images/ae8d1e04-8790-42f3-82f1-b798.jpgOne more.
By massey ferguson 175 - 6 Months Ago
http://forums.justoldtrucks.com/uploads/images/edcc88c2-9bcf-4678-a9b4-55c6.jpgLast one . Thank you.
By Geoff Weeks - 6 Months Ago
Yours is likely an old CR Brakemaster unit, basic design is the same on the SKF but the SKF has been updated with a heater.  Like I said, I didn't have much to do with the one kicking around the shop, cause all our stuff at the time used the European design unloaders. All my stuff today runs Bendix AD-4's.