Tight action centers

[Mike Masters]

Wimblees@aol.com wrote:
> 
> In a message dated 98-02-12 06:22:54 EST, you write:
> 
> >Another suggestion that
> >I have tried was to push one side of the center pin in just a little, then
> >the other side.  The slight burr on the ends of the center pins loosen up
> >the felt bushing very slightly.  That method works, but I wouldn't try it
> >on an entire set of flanges.
> >
> >Ted Simmons, Merritt Island, FL
> 
> This is a proceedure I use quite frequently, and it work very well. In
> addition to pusing the center pin out a little bit, I rout out the bushing
> with a roughed up center pin, anchored in a little hand vise. Then I add a
> little lubricant, and the flange swings like it ought to.
> 
> Willem Blees

	In my opinion, the only problem with pushing the pin in and out of the 
bushing will only "ream" one bushing of the flange, right? The center 
pin has to cuts, one on each side. The rough jagged cut from the 
technician, and the smooth, unburred factory cut. Pushing the pin in and 
out of the bushings will only cause uneven wear. The best ways to go 
about it, in my opinion, of course, are:
	1:denatured alcohol/H20
	2:repin!
	Procedure for repinning:
	1: Remove center pin. Make sure you are pushing factory cut side 
through the flange and birds eye. The burred technician cut side will 
tear felt and make birds eye larger.
	2: mic old center pin.
	3: get new center pin. SAME SIZE AS OLD PIN AS WAS JUST REMOVED. only 
if the old pin was tight in birdseye. If not go up a size and check to 
see if fit in birdseye is tight.
	4: ream and burnish flange in ONE step to a perfect size using a exact 
mic size burnisher/reamer sold by your local piano supply house. My set 
consists of 6 popular sizes, each with its own solid wood handle and a 
convenient brown canvas carrying pouch.
	5: Install new pin and work back and forth a couple of times
	6: Check hammer swing on hammer butt flanges. usually 5-7 is good for 
me, wippen flange should fall only with weight of screw in flange.
Have some Fun!

Mike Masters
Masters Piano Service
Lakewood, OH