[Heath] [Heathkit] [Heathkit:Yahoo] Pot shaft stuck 'rock solid'

[Robert Myers]

What about Methylene Chloride instead of Acetone?  Has anyone ever tied that?

Just curious.

--- Rob

-----Original Message-----
From: Heathkit [mailto:heathkit-bounces at mailman.qth.net] On Behalf Of Gary Pewitt
Sent: August-10-14 9:38 PM
To: heathkit at mailman.qth.net
Subject: [Bulk] Re: [Heathkit] [Heathkit:Yahoo] Pot shaft stuck 'rock solid'

A fifty/fifty mix of acetone and ATF is the best, and cheapest, penetrating fluid there is.  Works at -least- ten times better than any penetrating oil on the market bar none.



On 08/10/2014 04:08 AM, Bob via Heathkit wrote:
> Hi Rob
>
> A very thin penetrating oil or even parafin and some patience should 
> work but may take a while. The pot on my SB610 does have a small 
> amount of sideways  as well as back and forward play in the rotatable 
> shaft so there should be room  for the oil to wick into the gap.
>
> If you can get the control out of the 610 then try suspending the shaft end
>   in penetrating oil or soak a piece of tissue in the oil and wrap it 
> around the  control shaft and leave for a while. Give it a twist now 
> and then and it should  eventually clear.
>
> The problem will be more difficult if the blockage is caused by 
> corrosion instead of old dried grease.
>
> 73
>
> Bob
>
> Bob F Burns G3OOU
> C  Eng, FIET, MSE
> G-QRP 6907
> Crystal Palace Radio & Electronics Club:  www.g3oou.co.uk Technical 
> web site: _www.qsl.net/g3oou_ (http://www.qsl.net/g3oou) @BobFBurns on 
> Twitter:  http://twitter.com/BobFBurns
>
>
> In a message dated 10/08/2014 07:07:00 GMT Standard Time, 
> heathkit at yahoogroups.com writes:
>
>
>
>
> I have a pot whose shaft got stuck 'rock solid' somehow after a few 
> years of non use - but at one time it worked smoothly (it's the ON/OFF 
> switch +  pot on my SB-610).
>
> Are there any standard solutions for  this?
>
> Thanks,
> -- Rob Myers, VE3JQL
>
>
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