info deoxit and how to use it correctly

Hi everyone, so I did a little loudness with my music man majesty and it has a bit of a “crackling” sound when I get to a certain position.
is it possible to use a deoxit (d5 for example) to clean the contacts?
sorry for the stupid question but this is the first time I do this. do you need to remove the black knob to do this or can you spray it directly into the pot housing (by accessing from the back of the guitar)?
I also wanted to make sure that these products do not damage the push push…

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