Knuckle installation

[Joseph Alkana]

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Avery,
According to one prominent Korean manufacturer, just use a wee drop of =
white glue...enough so the knuckle doesn't want to come out. Don't =
slather glue in the slot, there's plenty of mechanical holding ability =
there.

Cute tricks??
Wear band aids (or thin gloves) to keep your greasy fingers off the =
surface of the knuckle.
Do make sure the grooves are super clean.
Dry fit each knuckle first as you progress. You may need to dress up the =
fit sometimes.
Get the alignment left to right perfect - check for rubbing knuckles =
with their neighbors frequently. Watch out for poorly aligned/traveled =
whipens in the first place.
Make sure the knuckle is bottomed out in the groove evenly.
Keep the knuckles oriented uniformly (usually a line is inscribed on one =
side of the knuckle)...Just like if it had real nap to the covering =
material, which it doesn't, most likely. (Yeah, yeah grain orientation =
is a point of discussion for some techs)
Be prepared time -wise to do some regulation. (jack to knuckle core =
orientation, hammer line, let-off, drop...) Of course by now the dip is =
way too deep, but we won't be doing that, eh?
Best trick of all: Getting paid by the manufacturer for what the job is =
really worth!

Joseph Alkana  RPT
josephspiano@comcast.net
  ----- Original Message -----=20
  From: Avery Todd=20
  To: Pianotech=20
  Sent: Monday, November 22, 2004 5:39 PM
  Subject: Knuckle installation


  List,

  I removed a set of bad knuckles today for a factory warranty type of =
thing
  and was just wondering if anyone had any "cute" tricks for installing =
the
  new ones. I'll be doing that tomorrow.

  The old ones came out with no broken ones and the grooves are in a =
pretty
  straight line and the new ones are snug, so I don't anticipate any =
problems.
  But just thought I'd ask anyway! :-) BTW, what glue do you recommend? =
Hot
  Hide? Tightbond?

  Avery=20

  _______________________________________________
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