Yes, that is correct. I did a Laffargue several years ago ( gorgeous sounding piano by the way, "artist's quality" piano ). A few swift kicks on the pedals are needed to set the valves. Thump --- Kerry Cooper <brispiano@optushome.com.au> wrote: > A few quick sharp jabs on the pedals will give the > required vacuum to lift > the valves to stop them from sphering, as the valves > are up side down. > Once the valves close, the pedalling should be good. > Some times it takes 5 > or 6 quick sharp pumps to do this. > > Best of luck. > > Kerry Cooper > ----- Original Message ----- > From: "Greg Graham" <grahampianos@yahoo.com> > To: <pianotech@ptg.org> > Sent: Wednesday, March 02, 2005 2:46 PM > Subject: Player piano vent block diagnosis > > > >I wanted to call this subject "Players suck" just > to > > get some attention, but refrained. Technically > > correct, but often mistaken for a disrespectful > value > > judgement. > > > > My problem: customer's Laffarge upright player, > built > > 1919, player action nicely rebuilt 1970, still > very > > clean and tight, works great, EXCEPT... > > > > When starting a roll, there is the sound of a > major > > vacuum leak. The spool turns slowly, but no keys > > play. You have to turn the electric vac up to > full > > power, something pops shut, then the piano plays > > perfectly, even after slowing the vac back down to > the > > minimum. The pump is tight, the motor is tight, > the > > action stack leaks only a little at the end > gaskets. > > > > I think the action cutoff "gate box and vent > block", > > between the pump reservoir and action stack is > > malfunctioning. It appears externally to be > exactly > > like the photo in Reblitz's "Player Piano...", > page > > 106, Illus. 6-17, third printing, 1986. > > > > I didn't have time to take it apart, but was > hoping an > > expert would have an idea why this valve would be > slow > > to close, needing very high vacuum. Any advice? > > Quick fix? Something else wrong? > > > > Greg Graham > > Closet player piano aficionado in denial > > > > > > > > > > __________________________________ > > Do you Yahoo!? > > Yahoo! Mail - Helps protect you from nasty > viruses. > > http://promotions.yahoo.com/new_mail > > > > _______________________________________________ > pianotech list info: > https://www.moypiano.com/resources/#archives > __________________________________ Celebrate Yahoo!'s 10th Birthday! Yahoo! Netrospective: 100 Moments of the Web http://birthday.yahoo.com/netrospective/
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