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

[G3OOU at aol.com]

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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 Posted by: "Robert Myers" <rsmyers at rogers.com>   
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