m931 air leaking

[allie]

1986 m931 tractor leaking air out of big canister under truck. i noticed a 3/8 nut recessed underneath the canister and if turned the air stops leaking and pressure will then build up problem is it keeps happening is this the proper way to stop the air from leaking out?

 

[porkysplace]

That the air dryer , when was the last time it was serviced ?

M939/LMTV/FMTV Air dryer replacements/upgrades

[h=1]M923a2 Air Dryer rebuild[/h] [h=3]Service Your Air Dryer[/h]
[h=1]Bottom of air dryer leaking. In parking lot[/h]

 

[Anvilface]

Yep, definitely as Porkysplace says...that joker needs some service. A good cleaning out, change dessicant, and that valve at the bottom leaking is the purge valve. It gets gummed up because it's made to blow junk out (water, dirt, and such). Just did two of them last week.

 

[allie]

i haven't serviced it in years its been sitting i run it once a month or so just to get things moving is it difficult to do wish i had a video on it

 

[8madjack]

It's very easy and there's a good thread on here showing step-by-step I'll see if I can find it for you.

 

[8madjack]

It's very easy and there's a good thread on here showing step-by-step I'll see if I can find it for you.

https://www.steelsoldiers.com/showthread.php?111037-M923a2-Air-Dryer-rebuild

 

[porkysplace]

It's very easy and there's a good thread on here showing step-by-step I'll see if I can find it for you.

https://www.steelsoldiers.com/showthread.php?111037-M923a2-Air-Dryer-rebuild

That is the second link I posted in Post #2.

 

[allie]

great i thank you for your help ill get into it on the weekend

 

[Floridianson]

I haven't serviced it in years its been sitting. I run it once a month or so just to get things moving. Is it difficult to do? Wish I had a video on it.