Re: Stuck capacitor
|
Two thoughts. Try a product specifically formulated for penetration. PB Blaster, etc. Apply copiously every hour or so and let sit overnight. The other things you tried weren't meant for penetration, or they do not include agents to help loosen the stuck. That includes WD40, which leads to my second thought: don't use it on electronics or other precision gear. It was not formulated primarily as a lubricant but as a water-displacement coating. It does, in fact, leave a film which, over time, oxidizes into a sticky "varnish" (sort of like old gasoline can do).
Years ago, I worked for an aerospace firm that used, and made, close-tolerance bearings, both rotational and linear, ultra-precision optics, and other rocket-science kind of stuff. WD-40 was banned from the plant. It wasn't just prohibited just from certain uses or applications, it was banned from the entire place. Machinists couldn't have it, plant maintenance could have it, and even the janitor couldn't have the stuff. Why? If any one had a can, it would eventually end up on some tech's bench, only to cause problems later. We could use silicones, teflon-based lubricants, or other fine polymer-free machine oil, but only if it was on a list approved by the chief engineer.
Don't get me wrong, WD-40 is great stuff. I used it the other day to free-up a pipe wrench I left in the rain all winter. Worked great.
73,
Todd ------------------------------------------------------------------------------------
K7TFC / Medford, Oregon, USA / CN82ni / UTC-8 ------------------------------------------------------------------------------------ QRP (CW & SSB) / EmComm / SOTA / Homebrew / Design
On Tue, May 14, 2013 at 7:18 AM, John R. Lonigro <jonigro@...> wrote:
|
|
|