M936A2 air drier

[MOFTA]

Does anyone have the info on the replacement air driers that were used on the wreckers? I still have the original and having problems getting it to seal, even after disassembling and cleaning. I understood that they were replaced with much more troublefree units.

Thanks

John Doherty

 

[steelsoldiers]

Do you have ABS? If so, then it should be a Haldex Pure Air Plus. I bought a rebuild kit for my 923A2 from NAPA. It came with a new dessicant filter, pressure relief valve, and some o-rings. If your truck is like my 925A2 being an A2, but no ABS, then it is a Stark air dryer. D&D bought Stark and sells the replacement filters for them:Products - Expello Otherwise, you could buy a whole Haldex unit and retrofit your truck with it. There was a kit used by the military that did just that. Just make sure you buy a 24v model or you will burn out the heater.

 

[MOFTA]

Thank you sir.

 

[steelsoldiers]

You are welcome, John. Do you have any pics of your truck? I'd love to see it as would all of the other 939-series fans on SS.

 

[halftrack]

The M936A2 that I have has the HALDEX - MIDLAND SERVICE "Pure Air Plus" Air Dryer. The filter overhaul kit cost me $110. Not Cheap. There is basically only one model out there. Here is a link to toubleshooting problems for the Pure Air Plus Dryer. An old timer told me to just disconnect it and put an air valve drain on the tanks and save me the headaches.
http://www.beamalarm.com/foretravel-links/PDF/Haldex Air Dryer Troubleshooting Instructions.pdf

Haldex

 

[steelsoldiers]

I loved the Haldex on my truck. It worked fantastic. I never had any water in my tanks and personally I enjoy hearing the expelling air as I am cruising down the highway. It reminds me of driving a big rig. Dry air is a must for properly functioning ABS and CTIS. Just dumping the air tanks won't cut it IMHO.

Good resource on the Haldex Troubleshooting, Jason.