Anyone have problems removing a lever knob?

I finally got a C100f. Turns out, I have bad a solder joint at the right amp IC. However, there's no reason to bother figuring how to completely remove the board for a repair as the Loudness lever knob won't come off. The rest came off fine. I'm guessing it was glued on at some point in the last 29 years. Anyone have any ideas? I'm trying not to dremel off something that expensive/hard to replace.

Try using sticky cellophane tape to stick to and create a handle. Then with one hand, pinch & pull. Using other hand, pull on the cellophane handle. For me, I don't have enough finger strength so this gives me enough grip assist to yank it out most of the time. Still no go? Then have a 2nd person help using a hook type tool to snag & pull from behind the knob. I wouldn't use a sharp hook, rather a thick belt tool, the kind used to help rebelling decks.

I've good luck using the Kobalt hook tools. They also prove invaluable when working with some belt jobs.

Kobalt 4-Piece Household Tool Set
Item #: 525831 | Model #: 324621

http://www.lowes.com/pd_525831-930-324621_1z11pdb+1z140vv__?productId=50158911&Ns=p_product_price|0&pl=1&currentURL=%3FNs%3Dp_product_price|0%26page%3D13&facetInfo=Kobalt

I have the same issue with the radio I'm tryin to fix for the radio dj Speedy. His has 2 of them that won't come off. I'm trying to clean this radio. I'm at wits end with it. I too think his have been glued on. I have replacements but I'm not tryin to cut these off either.

wrap some string around the back of the knob/lever and pull straight out .

What's stupid is that some people have a loose peg cover for the switch & then uses some astoundingly strong ACME Wile E. Coyote glue so that the next unfortunate victim who buys the radio inherits the unremovable switch from hell that just trashes any dream of restoration....

If you have to keep a switch cover on a peg then use something that has an easily breakable bond. Something that gives with a couple of foot-pounds of force....I use a thin cloth to protect the cover from scratches & use a pair of needle nose pliers to pry off stubborn caps....It works well but may break the switch if you use too much force so be careful.....I won't be responsible for others attempting this....

Cpl

JVC Floyd said:

wrap some string around the back of the knob/lever and pull straight out .

Click to expand...

Correct! That is what I do all the time. Use different strong thread, slip it behind it and pull straight out.

The other trick is to use a 1 to 2 cm wide rubber belt to grip on it and pull out. That works like a charm!

I had the same issue on my Conion. They were glued on, most came off ok but two didn't. In desperation I sprayed a little WD-40 with the nozzle director tube on directly to the metal bit of the toggle toggle "behind" the plastic switch top.....it must have wicked up the metal and inside the glued switch top......after being left overnight it literally popped off next day with a light wiggle. Must have somehow broke the bond. Worth a shot but I was very cautious with the spray......not sure if it'd stain the front panel, likely not, but I want taking any chances

WD40 is neither more nor less than a paraffin/DERV mix with some form of added perfume and as anyone who ever went out to their car on a morning to find a huge, slippery puddle under it can confirm , once Diesel is on the job it doesn't give up 'til its work is done.

Unlike penetrating fluids, a thing that WD40 was never intended to be, there's no solvent in there and I've often used it for cleaning tasks around radios with no ill effects on any painted, piano black or wooden surfaces. The perfume means that women can use it when their expensive designer fragrance runs out.
It also removes chewing gum from woolie jumpers and we all know what an annoying problem that could be.