|
Post by coldspaces on May 3, 2018 3:20:37 GMT
And I was gonna tell you to wait till winter, set it outside, put on your gas mask, cut the line and poke at the blockage. Recovery might be better though.
|
|
|
Post by elec573 on May 3, 2018 3:33:43 GMT
Blackhorse had a good way to get rid of it , he would run it through a hose into a bucket of water far from his home. I guess the water does something to it . I know he posted it sometime ago don’t remember where though.
|
|
|
Post by timeswelding on May 3, 2018 9:38:09 GMT
Blackhorse had a good way to get rid of it , he would run it through a hose into a bucket of water far from his home. I guess the water does something to it . I know he posted it sometime ago don’t remember where though. I believe the water has to have lye in it
|
|
|
Post by birkie on May 3, 2018 11:03:59 GMT
I believe the water has to have lye in it Yes; washing soda should work too, though one needs twice as much by weight. The nice thing about recovery is being able to weigh how much was in there with a bit of precision, even if the ultimate fate of the stuff is to be released in a field somewhere on a windy day. That "drill a hole with the system charged with SO2, poke something in the orifice, then quickly solder it shut" is still an insane idea
|
|
|
Post by Travis on May 3, 2018 17:22:27 GMT
Oh come on, do it!
|
|
|
Post by 2030vision on May 4, 2018 0:03:36 GMT
Hi Travis Drooling over your 1927 DR3!
|
|
|
Post by elec573 on May 4, 2018 4:11:24 GMT
Wow a ghost from the past !
It’s nice to here from old members!
|
|
|
Post by cablehack on May 4, 2018 11:48:05 GMT
That "drill a hole with the system charged with SO2, poke something in the orifice, then quickly solder it shut" is still an insane idea Ever since I read about piano wire trick I've been hoping someone here will actually try it. I guess there's a bit more pressure in a DR than a CA, so the practicalities of the idea have me intrigued.
|
|
|
Post by birkie on May 5, 2018 4:16:07 GMT
Ever since I read about piano wire trick I've been hoping someone here will actually try it. I guess there's a bit more pressure in a DR than a CA, so the practicalities of the idea have me intrigued. I wouldn't do it on a running unit as described in the Holladay article because of the liquid SO2 coming through through the float (or in the winter when it's near 14°F). Maybe putting a little bit of dry ice in the evaporators could cause most of the refrigerant to migrate there, and the pressure of the rest of the system to start to approach vacuum? .. not that I'm seriously considering doing that for any of our current machines. But if the pressure could be actually brought down in that way, then the idea seems a bit less insane. Personally, I'm not sure I'm skilled enough to hit the target with a wire and get the thing soldered quick enough.
|
|
|
Post by elec573 on May 8, 2018 5:22:13 GMT
Sounds like a very risky move to me . But it would be interesting to try as long as not in the same state.
|
|
|
Post by birkie on Oct 3, 2018 13:13:46 GMT
I now have this unit drained of its SO2, so will definitely not be attempting the piano wire trick It had its full 7 lbs charge. It was notable that the purge screw was rather solidly stuck in place initially. After placing a little supco 88 in the well, it considerably loosened things up in this one. It took very little effort at all to open the purge screw after soaking a day or so. For some reason, it made a particularly dramatic difference for this machine.
|
|
|
Post by csulaguy on Mar 19, 2019 1:10:32 GMT
Did yours just hum when it was seized at first? My DR2 is seized, but it doesn't make ANY noise at all, though it appears to be drawing over 1000 watts when it's "trying" to start up, before the overload kicks in. I'm kinda wondering if I can get away with trying to have it start in reverse now, for the possibility of getting it to run.
|
|
|
Post by birkie on Mar 19, 2019 2:16:26 GMT
Did yours just hum when it was seized at first? My DR2 is seized, but it doesn't make ANY noise at all, though it appears to be drawing over 1000 watts when it's "trying" to start up, before the overload kicks in. I'm kinda wondering if I can get away with trying to have it start in reverse now, for the possibility of getting it to run. It was subtle, but there was a rather slight hum (and the lights dimming slightly). Do give it a try, there's not much to lose. I'd try it in reverse before applying 240V, as a personal preference.
|
|
|
Post by csulaguy on Mar 19, 2019 5:56:34 GMT
Well, too late on that, as I already applied 240V before. The only way I was able to get access to 240V without using a 4 wire configuration was through my 7KW Kohler genset. I gave it about 500ms each time. No changes when trying via 120V. I might try to reverse it tomorrow, and if that doesn't work, I'm hoping I can take it to David this week to see if we can unseize it using his magic touch.
|
|
|
Post by birkie on Mar 19, 2019 13:06:05 GMT
Well, too late on that, as I already applied 240V before. The only way I was able to get access to 240V without using a 4 wire configuration was through my 7KW Kohler genset. I gave it about 500ms each time. No changes when trying via 120V. I might try to reverse it tomorrow, and if that doesn't work, I'm hoping I can take it to David this week to see if we can unseize it using his magic touch. It's worth a try reversing it, though the chance of that working at this point sounds slim. The achilles heel of DRs are seizing and rewinds if they aren't treated well. Maybe you can sweeten the deal by letting David experiment with it a little
|
|