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Post by Travis on Mar 27, 2014 22:49:44 GMT
It would appear that a small amount of SO2 lost during the work can be replaced with R12 - the manual actually suggests doing this (see page 152 of the manual). Yes, I was told you can replace approx. 25% of an SO2 charge with R12. Mike Arnold told me. |
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Post by coldspaces on Apr 2, 2014 0:16:35 GMT
Well the ball top may not fit in my freezer but a recovery tank does. I decided to recover the refrigerant and see what I can do to get this ball top working. Don't want to run the so2 through my recovery equipment and there is no real need. I had no trouble getting to a 10" vacuum by just freezing the tank.   Wrapped the unit in blankets and heated it to help the so2 boil out.  |
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Post by jhigdon2 on Apr 2, 2014 0:47:12 GMT
That is very crafty!
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Post by cablehack on Apr 2, 2014 0:56:02 GMT
Brilliant!
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Post by coldspaces on Apr 2, 2014 1:11:30 GMT
Not as impressive as working on it charged, but I feel safer  |
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Post by allan on Apr 2, 2014 1:26:30 GMT
Great plan? Can you measure and tell how much SO2 you have pulled from the CG? What will you break the system vacuum with to start surgery?
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Post by jhigdon2 on Apr 2, 2014 1:36:46 GMT
That should be a little safer. A little squirt of S02 in the face is something that's hard to forget.
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Post by ChrisJ on Apr 2, 2014 1:43:41 GMT
Many many years ago my dad accidently forgot a deep cycle 12v battery on the charger and it filled the whole house and even the outside of the house with a smell like fart. Is that similar to SO2? I remember wanting to go inside because it smelled fowl outside and then when we opened the door, UGH!.
Ran around opening windows, trying to figure out what the smell was and he finally remembered the battery. Good thing nothing else happened but the battery was of course garbage.
Something tells me the fact we were able to go into the house without our eyes burning that it wasn't even close to SO2.
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Post by coldspaces on Apr 2, 2014 2:40:27 GMT
Great plan? Can you measure and tell how much SO2 you have pulled from the CG? What will you break the system vacuum with to start surgery? I pulled a vacuum till most of the so2 was gone, broke vacuum with nitrogen to 0 psi and another vacuum. Then nitrogen to just a few psi. Didn't get it all but good enough to kill most of the strength of it. The scale says I only got 10 oz out. I also line taped the suction line to be sure it was in a vacuum. I have cut the line about 1 inch below the float. For the life of me I can't find anything small and stiff enough to push through the blockage. May need something smaller than normal for the CG float. About ready to go braze a valve on it and see if I can force through it backwards with nitrogen pressure. Or force some supco 88 through it. |
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Post by jhigdon2 on Apr 2, 2014 2:46:24 GMT
A little squirt of S02 is hard to describe. It sorta has the smell of somthing rotten from aways away but up close it's the queen mother of all that stinks.
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Post by jhigdon2 on Apr 2, 2014 2:53:04 GMT
Great plan? Can you measure and tell how much SO2 you have pulled from the CG? What will you break the system vacuum with to start surgery? I pulled a vacuum till most of the so2 was gone, broke vacuum with nitrogen to 0 psi and another vacuum. Then nitrogen to just a few psi. Didn't get it all but good enough to kill most of the strength of it. The scale says I only got 10 oz out. I also line taped the suction line to be sure it was in a vacuum. I have cut the line about 1 inch below the float. For the life of me I can't find anything small and stiff enough to push through the blockage. May need something smaller than normal for the CG float. About ready to go braze a valve on it and see if I can force through it backwards with nitrogen pressure. Or force some supco 88 through it. |
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Post by jhigdon2 on Apr 2, 2014 2:55:27 GMT
If you pluck a wire from a wire brush. .020 approx. Or if you have a set of torch tip cleaners. It takes a lot of ppoking and alot of light to find the exact spot.
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Post by jhigdon2 on Apr 2, 2014 3:13:33 GMT
Once you find the hole, it usually doesn't take much force to clear it of debris.
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Post by coldspaces on Apr 2, 2014 4:08:08 GMT
I messed around for over an hour earlier plucking wires and trying to get them in there. After I brazed on a valve I could get a small amount of flow backwards. Then I force fed it three small batches of Supco 88.  Even though I could only put a small amount of Supco in at a time it took a good 5 minutes or so to push the liquid through the restriction. After repeated light tapping and pushing nitrogen through from both directions It suddenly let go and opened up. Pushed some out through a rag and got some nice black gritty carbon substance just as expected. |
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Post by Travis on Apr 2, 2014 4:13:36 GMT
Poor baby was constipated!
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