Airline anti-freeze.

[Chaz]

.... speaking of brake switches possibly freezing up.................... (my previous post)  I guess I should probably look at putting in some brakeline anti-freeze. And sugestions, tips, tricks, amounts, filling spot, etc.?

  Thanx again!
     Chaz

[Paso One]

Hi Chaz  Some of us up here in the frozen north  ( -37 today  )  add the fluid at the easiest fitting to access on one of the tanks  ( evaporator tank )

Years ago before air dryers were common some of the equipment had little jars you hjust filled and it gets sucked in  Think injector.

[Eagle Andy]

Hey Chaz . What you can do is brake lose the air line leading frome your compressor and pour some brake line anyi freeze in rehook the line and give it a go. What Iam doing is installing a anti freeze injection can there made by Midland . We have them on our oil field trucks and they work great. FWIW  Andy

[buswarrior]

A note of caution, do not introduce brake antifreeze ahead of your air drier, if equipped.

The air drier desiccant will be ruined, turning into a chalky mud mess, not what you want heading deeper into the system.

Rig your wet tank with fittings to pump it in via a motorboat primer bulb.

happy coaching!
buswarrior

[Eagle Andy]

I stand corrected BW I forgot about the dryer , good catch  Thanks Andy

[WEC4104]

I'm sitting here chuckling at myself.  When I first read the title for this thread, my immediate thought was "What is some busnut planning to do with the stuff they use on commercial jets to de-ice the wings?"

[Chaz]

Sorry WEC, I guess that does conjure up a different mental picture.    That just shows my lack of ability's with the English language.  Shoulda paid more attention in English class. Who knew. 
I don't have a dryer, at least that I know of. My guess would also be that I don't as I need to blow tanks on occassion as well as I have these "freeze ups". But it's great to get that little piece of advice, Warrior, as I would like to add one if I can find one at bargain basement prices at some point. (no spare bus money right now)
I do have an air fitting in the engine compartment just past my compressor that I think I can make a "pressure can/bottle" and force in some antifreeze using shop air. How much do you use?? Is there instructions (I assume) on the can??
The fitting is where I hook up my shop air before I take off, if I think of it, so I don't have to sit so long before I leave. Dallas told me I could probably use a compressor rebuild. It takes a little while - 5 or better minutes - to air up. And she still smokes so I want to cut my neighbors a little slack. 
Thanx again for all the great info!!
  Stay warm and Happy New Year!!!!!!!
   Chaz

[buswarrior]

No air drier, then the fitting in the engine room is handy enough. Check the size of any containment uphill from that fitting to the main line from the compressor.

You'll have to put more alcohol in than that thing's size, or it won't go down the line.

Confirm that the juice won't run backwards from that point and start filling the air compressor...that would be very bad. Hydraulic lock will break it all. If in doubt, forget it, go to the wet tank and install fittings.

Close the valve, hook up the shop air to be ready, fire up the coach to start the juice towards the wet tank, after half a minute, shut down and use the shop air to finish, so as to keep the neighbours happy, and be sure it is flowing the right way.

happy coaching!
buswarrior