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Topic: How to free up frozen pot shaft? |
Bryan Bradfield
From:
Lethbridge, Alberta, Canada.
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Posted 17 Jul 2011 2:09 pm |
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I have an amp that was in storage for several years. The very noisy pots were cleaned with lots of injecting of isopropyl alcohol and rapid rotating. Now, after not using the amp for about 3 weeks, one pot appeared to have a frozen shaft. It had been free enough during the cleaning process. I managed to free it by hand without too much effort, and rotating it for awhile caused it move a bit more freely, but not as freely as the other pots.
Do I need to lubricate? I assume the shaft is what is freezing up. What do I lube with? Light oil? Powdered graphite? |
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David Nugent
From:
Gum Spring, Va.
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Posted 17 Jul 2011 3:34 pm
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| Radio Shack has a tuner cleaner available named, "Tuner Control". Remove the knobs and spray it directly into all pots while turning the shafts back and forth. This should reduce any scratchiness as well. |
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Mike Wheeler
From:
Delaware, Ohio, USA
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Posted 17 Jul 2011 3:41 pm
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By using alcohol you have washed away all the lubrication that was there. Now you need to re-lubricate it.
Oops, David beat me to it while I was typin'! 
_________________
Best regards,
Mike |
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Blake Hawkins
From:
Florida
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Posted 17 Jul 2011 6:30 pm
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Bryan you can use any household light oil such as
"3 in 1", "Super Oil", or sewing machine oil.
I put one drop on a tooth pick, put on the shaft
and let it soak in.
Then put the knob back on and it should work freely.
One drop is enough to lube the shaft and not get
on internal parts. |
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Dave Mudgett
From:
Central Pennsylvania and Gallatin, Tennessee
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Bryan Bradfield
From:
Lethbridge, Alberta, Canada.
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Posted 18 Jul 2011 6:42 pm
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| Thanks for the tips guys. Blake - I will probably be using the light oil on a toothpick trick. |
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