[TCML] OBIT Questions
pslawinski at gmail.com
Tue Nov 4 07:20:41 MST 2008
Petroleum-based solvents work best for this. I used kerosene when I
depotted NSTs. I would suggest using the same method that Jay Haddock
mentioned. Put the transformers in the freezer and then use a hammer and
chisel to chip away the asphalt. If the windings are brittle enough to
break while you're chiseling away the asphalt then you probably don't want
anything to do with the transformer anyways. After you chisel away the
asphalt dunk the transformer in a tank of kerosene and start scrubbing. For
best results let the transformer sit in the kerosene for a few days. It's
not really important that you remove all the asphalt, By the way, it's
best to do this outdoors, and away from anything you care about. You'll
want to wear old clothes as well, as asphalt doesn't easily come off shirts,
On Mon, Nov 3, 2008 at 22:52, <jhowson4 at comcast.net> wrote:
> Haha another Jay. H. Awsome. But now I have to type my whole name. =)
> I have tried to peel off the thin metal case before but with no success.
> Just a big tar mess. I have 2 dead ones that have been sitting on the table
> for a while so maybe I will start trying non-destructivly unpot those.
> What type a solvent would be good for dissolving tar?
> Jay Howson =)
> -------------- Original message --------------
> From: Jay Haddock <jhaddock at kmoraine.com>
> > jhowson4 at comcast.net wrote:
> > > Hey Kevin
> > > " If you "cook" one and remove the core
> > > from the tar and run it in oil, it will run a long time."
> > > could you describe your method for getting these things out o the tar.
> > tried once and i ended up destroying a good transformer.
> > > thanks
> > > Jay. H
> > >
> > The last one I did, I froze and took a hammer to it. That worked quite
> > well, didn't get every last bit out of the nooks and crannies, but some
> > solvent would clean it up easily.
> > Jay Haddock (yes, another Jay H.)
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