Hi Joe, Those reamers need to be redesigned, first time I replaced a set, my fingers were blistered. Now I use a power screwdriver with a chuck head in it. I think that is what you call those things that accept drill bits. The first reamer I had the teeth wore down. The one I use now has longer teeth, and they are thinner. Who sells the best one? The Asian pianos use a glue, that is hard to get cleared out. I think applying some heat works best. Young-Chang back in the 80's had a problem with jack springs breaking. They did pay to have them replaced. I will be interested in your impression of them, I think a lot of others will as well. John Ross Windsor, Nova Scotia, Canada On 14-Mar-10, at 6:17 PM, Joe DeFazio wrote: >> From: John Ross <jrpiano at win.eastlink.ca> >> Date: March 14, 2010 1:22:14 AM EST >> >> Hi Joe, >> I carry the two sizes of jack springs sold by the supply houses, >> one for a spinet, and one for an upright. >> There is quite a difference in size between them. I know the >> spinet size is too small for the upright action. >> The upright one is compressed too much in the spinet action. Ok it >> may have been a console. I haven't done enough over the years to >> have noticed. >> I use the terminology because it is what the catalogues use. >> Of course I compare the size of the springs before installation, so >> console, spinet or upright, use what ever spring applies. > > Hi John - I think that we are on the same page regarding which size > spring goes where; replace with the same size that you took out > pretty much sums it up. I had been confused by your "I used to use > the previous ones, on both console and the full size actions" > statement in your last reply, which is why I wrote back. I, > personally, find the general terminology about spinet parts and > console parts used in our industry to be confusing. Maybe it's just > me? > >> Is there a manufacturer, who does not glue the springs in? >> When you seem to complain, of the new spring being glued in, >> without needing to be. Then that information should be supplied by >> the seller. > > I didn't write clearly, sorry. Typically, the glue used to attach > the jack springs to the wippen body on an older action is quite > easily removed (a little dab of brittle old hide glue, often). In > this case, the rebuilder who put the new-type springs in used a > large quantity of a modern glue which I didn't recognize, which > dried very hard and tough. I didn't find a solvent that would > soften it, and it took several hours to chip/grind/drill (with the > jack hole reamer chucked into an electric drill) the old glue out. > The glue dulled the teeth on the (steel) jack hole reamer pretty > quickly. So, I was just complaining about the violation of the > "think of how the next guy is going to redo this someday" principle > in our craft; I didn't mean to imply that the new springs shouldn't > be glued into the wippen body. In fact, I don't know if they come > with any instructions, but I will order a set this coming week, try > at least a few of them in an upright, and report back about my > initial impressions and any accompanying instructions. > > Joe DeFazio > Pittsburgh -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100314/89bfa63e/attachment.htm>
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