In article <960722115331_367296066@emout07.mail.aol.com>, DBHersh@aol.com writes > > > As far as the lubricants are concerned I think they have their place if >properly used. Suppose you have an old Steinway action that is still plenty >functional but all the centers are slightly tight. For instance you raise all >the hammers to about 60 or 70 degrees and they just slowly return. I wouldn't >hesitate to use the pro-tech lube that Pianotek sells. Most likely what would >be causing the sluggish action in the above mentioned scenario would be >verdigris and that particular solution seems to work well. If the cause is >verdigris and it is bad enough to cause serious sluggishness then the only >way to properly correct the problem is to change the parts IMO. >Interestingly, I have found that the pro-tech lube does NOT work well in all >instances. I tried some on a sluggish yamaha one time and it actually made >the flanges stick more. Also on a newer Steinway one time I tried it just on >one flange as an expieriment and it made it tighter. >Doug Hershberger, RPT > Hi Doug, I don't know about the reamers you mentioned above the ones I use were six inches long and very accuately drawn to the correct diamenter. They were very smooth and when you adjust coming up a quarter size they were quite efficient. However, I found when you were doing pins that were loose and had uneven ware on one side of the flange the roughed up centre pins were far more evvicient. You mentioned above that the pin tight doesn#t all ways produce the desired results, did you have to recentre? and if so what effect did the centre pin lubricant have on your reamers. Did it gonch them up? or is the amount you#re using very small. As I pinted out in my earlier post I have had very little experience with centre pin lubricant. Back in the 80's I was brought in to a company to upgrade their quality control in the action department and the thing I found was the 25 technicians were using gallons of the stuff. In one case a young Lady picked up an action literally dripping placed it in the piano and proceeded to cast the hammers with a naked flame and of course the actiion caught on fire I found this to be the last straw and banned it from the company. This may of course may have been an over reactioon on my part but I had necver come accross this stuff befopre and was totally alien to the way I was taught. However, I do agree with you that there are times when an action has seasonal sluggishness that this product could possibly be the prayer that one was looking for. Also sometimes clients do not have the financial word for all to pay for a full recentre and this may be a cheaper alternative. What are the amounts you place on each side of the flange and how long is it before you receive the results and does it cause sqeaks in the future. Regards, -- Barrie Heaton | Be Environmentally Friendly URL: http://www.airtime.co.uk/forte/piano.htm | To Your Neighbour The UK PIano Page | pgp key on request | HAVE YOUR PIANO TUNED
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