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recovery machines?

Rodney R on Wed June 16, 2010 9:26 PM User is offline

I am looking at getting a recovery machine, but one of the old posts on here said not to reuse the refrigerant that has been recovered. I was thinking that I would be able to recover the refrigerant from a system, and then be able to put it back in. I don't have a commercial shop, so all the refrigerant would come from known machines. For instance, right now I have a truck and a tractor - one is undercharged, one is overercharged, both have 134a and ester oil, and both need service work - I was hoping to recover the 134a (It has just been installed in both), and then recharge both units. Is there some reason why this couldn't/shouldn't be done?

Rodney

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'92 Ford F-250, 7.3 diesel

GM Tech on Wed June 16, 2010 10:38 PM User is offline

No

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The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

CCWKen on Wed June 16, 2010 10:48 PM User is offlineView users profile

I concur. For your own use, you can recover and recycle 134a. I would suggest you add up stream and down stream filters if your recovery unit does not include them. One of the biggest challenges is to keep air out of the process. Be sure to run a vacuum on all lines before opening valves.

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Ken Kopsky

Custom Car Works
"Rules are for the guidance of wise men and the obedience of fools."

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