Thanks a million, I thought as much, but did not want to beat something that
did not need beat. I will give it a shot, little by little and no oil. It
was almost impossible to get any info on that model. Thanks again
-----Original Message-----
From: Tesla [mailto:tesla-bounces@xxxxxxxxxx] On Behalf Of Forrest Mohrman
Sent: December 4, 2020 1:37 PM
To: Tesla Coil Mailing List
Subject: Re: [TCML] Variac problem.
Shaun....have had the same problem with 4 different units. The brushes
corrode into place and allow arcing to the windings and the burn a turn.
You have to gently tap back and forth to get it loose......take you
time......it will come free.
When you are loose take the sides and lightly sand the corrosion off so
the brush so it slides freely in the slot. Might have to sand the slot
also. A nail file comes in handy. No oil! Can use graphite powder for
lube.
Bud
On Fri, Dec 4, 2020, 6:26 AM shaun <snoggle@xxxxxxxxxxxxxx> wrote:
>
>
> I have a powerstat 1156b 45 amp variac. Does anyone know the mechanics of
> changing the brush assembly.? I have removed the two screws but seems to
be
> froze in place. Not knowing how it's mounted I don't want to pry and break
> it. I have included a couple of pictures.
>
>
>
>
>
https://drive.google.com/drive/folders/1afwuQQNYbbad2pJKcihc3bZHvYg67o3-?usp
> =sharing
>
<https://drive.google.com/drive/folders/1afwuQQNYbbad2pJKcihc3bZHvYg67o3-?us
p=sharing>
>
>
>
>
>
>
>
> Thanks Shaun Noggle
>
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>
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