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7-Plus-NGM Digest December 2010
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Date: Thu, 02 Dec 2010 00:47:05 -0000
From: "derekwmoss"
Subject: frozen air brakes
hi there
i have a loco and it is soley air braked and the bleeeeeep thing has frozen solid and blown the presure regulator.
does any one know any way of stoping it doing this again as we are having 20 below weather here and i still need to be able to use the loco.
it is not practical to heat the shed that it is in nor would that solve the problem because it needs to be running for 5 hours a day and would likely freze up durring use with the wind chil factor as well as the cold temp.
ideas please.
thanks derek!!!!!!!!!!!!
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Date: Thu, 2 Dec 2010 00:58:40 +0000
From: Roy Stevens
Subject: RE: frozen air brakes
The solution is methyl alcohol. It's what truckers use to keep their air lines from freezing up in extremely cold weather. Just pour it in the line.
Roy
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Date: Wed, 1 Dec 2010 20:06:07 -0500
From: michael guy
Subject: Re: frozen air brakes
Also, if it doesn't already, the air should go first to a "wet" tank then a "dry" one from which service air is taken. Keep all the water in the wet tank from which you can blow it down and away rather than let it get in the brake lines and gizmos where it can freeze.
Michael
Toronto
http://www.trha.ca
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Date: Wed, 01 Dec 2010 19:28:08 -0700
From: Terry Miller
Subject: Re:frozen air brakes
Air brake system conditioner (methyl alcohol). Fancy name to avoid having to deal with hazardous materials rules. Use an evaporator such as this one on ebay:
http://motors.shop.ebay.com/__?_from=R40&_trksid=m39&_nkw=Alcohol+Evaporator+
If that link doesn't work, just search alcohol evaporator on ebay. This is a very good way to add alcohol to your air system without overdoing it.
Another way it to add it to your first air holding (wet) tank. You can disconnect an air line and just pour it into the tank. I used a T fitting and an extra valve so I could depressurize the system, open the valve, and pour the alcohol in through the valve. Quick and easy.
Good Luck,
Terry Miller
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