Sounds a bit like the opposite was the problem... the plunger was a tad too loose. If I remember correctly both Piano Disk and Diskklavier moved to so called lubricant free solenoids some years back, so you arent supposed to use anything on them. The old Piano Disks had lots of clicking plungers and the cure was normally to just replace them. Course you could get away with changing plungers a bit on those 12 15 years ago... production quality control wasnt so hot :) Bending the knob as it were puts side pressure on the plunger alright... and in the end maybe cause more wear and tear ?? sort of like turning the front rail pin in a worn bushing ? Probably need to replace the noid sooner or later anyways. Been some years now since I did any work on these things so maybe somebody else has got some better advice. RicB Ron Nossaman wrote: > > Remove the plunger. Place the stem of the plunger in a hand drill, > >holding a piece of 400 emery cloth, place the plunger in your hand , wrapped > >in the cloth and reduce the size "carefully" until the plunger moves > >effortless > >in the yoke. Good luck. > > > >Bob > > Yes, that's a fine fix if binding is the problem. It wasn't in this case. > The plunger moved fine with no binding whatsoever. When I swapped the > problem one with another, it also worked fine without binding. The problem > was that it clicked when it worked. > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives -- Richard Brekne RPT, N.P.T.F. UiB, Bergen, Norway mailto:rbrekne@broadpark.no http://home.broadpark.no/~rbrekne/ricmain.html http://www.hf.uib.no/grieg/personer/cv_RB.html
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