Members rlord1974 Posted February 20, 2010 Members Share Posted February 20, 2010 Some are "scratchy" when turned. What's the best way to clean them and solve this problem? Thanks! Link to comment Share on other sites More sharing options...
Members WRGKMC Posted February 20, 2010 Members Share Posted February 20, 2010 Marshall pots are dry so use a lubricating pot cleaner, not a dry degreaser contact cleaner that will increase friction and excel wear. A lubricating pot cleaner will usually have some mineral oil or other silicons so the pot is cleaned and friction wear reduced. It also prevents condensation. Cleaners are often a temporary fix if the knobs used alot or is poor quality. If the problem returns quickly, replacement is the only other alternative. They can often work for years though so its a definate fix that should be tried. Link to comment Share on other sites More sharing options...
Members rlord1974 Posted February 21, 2010 Author Members Share Posted February 21, 2010 Thanks, but I'm also interesed in the actual method to follow. Do I need to take the amp out of the head case and clean the pot from the inside of the chassis, or can I simply pop the knobs off and give them a spray on the front panel with the cleaner? Link to comment Share on other sites More sharing options...
Members WRGKMC Posted February 21, 2010 Members Share Posted February 21, 2010 No you cant clean them from the front, you have to open the head. The cleaner usually comes with a tube that attatches to the nozzel thet will let you get in there. Put the head on a towel in case theres some leakage, then spray into the pot cans through the opening where the electrical contacts are. Then work the pot really well and it should fix them up. Marshalls have good pots so its normally just dirt and moisture causing the scratchyness. Link to comment Share on other sites More sharing options...
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