I had that problem with my K2 9 years ago, and solved it by carefully tweezing the hairs out. Not cutting them, but finding the end of one and then turning the encoder shaft so it "unwound" and came out. Quite a job but it restored the original free-wheeling encoder action.
Then I soaked the inside edge of that felt washer with superglue so it wouldn't shed any more hairs into the mechanism. That made a hard 'fuzz-less' ring on the inside edge of the washer where it touches the encoder shaft and bearing. No trouble since. Back then others reported great success replacing the felt washer with a leather washer cut from an old belt or other scrap leather piece. No fuzz and they said it provided great friction control. Ron AC7AC -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm Sent: Friday, August 07, 2009 6:29 AM To: Sam Morgan Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] K2 Tuning knob resistance to tight Sam, That happens when some of the fuzz 'strings' from the felt washer gets caught up in the slot on the encoder shaft. Try to get it out with the tip of a knife or a needle, and believe me, it is not an easy task. Worst case, if you can't get it out, you may have to replace the encoder. Use a new felt washer in any case. 73, Don W3FPR Sam Morgan wrote: > I have been mainly using HRD and PowerSDR/IF to tune my K2 the last few months. > This morning I reached over to tweak a signal and found the resistance on the > main tuning know was really tight. I use to be able to use the edge of my finger > and almost spin the dial it was so free, but now it's so tight that is no even > possible. > > Is there an adjustment for this, a reason it may have happened? I fear something > is in the process of breaking? > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
