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Old 8th Dec 2019, 12:56 pm   #37
winston_1
Hexode
 
Join Date: Oct 2012
Location: London, UK.
Posts: 499
Default Re: Damaged vintage variac

Quote:
Originally Posted by WaveyDipole View Post
Spent an hour this morning trying to get that rotator off so that I can clean it properly. After an hour of twisting and tugging and running out of energy, only managed to get it 5mm or so down the insulator. Tried WD40 as well as soap to lubricate but neither helped. One of the difficulties is getting sufficient leverage. I didn't use anything as I don't want to damage the metal parts. I am open to ideas as to how to get the thing all the way down the insulator. Only 6in or so to go.....

I have attached a couple of clearer pictures of the brushes.
WD 40 is not a lubricant. It is a water displacement fluid (version 40). Try penetrating oil.
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