which lubes?

[Porritt, David]

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Jason:

=20

I generally use Protec on hammer flanges and I apply it with all parts
mounted using a syringe.  You can buy large syringes at any pharmacy.
While these used to be somewhat restricted to keep them from drug
addicts, now they are freely sold so drug addicts won't share needles
and get AIDS. =20

=20

dp

=20

David M. Porritt

dporritt@smu.edu

________________________________

From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On
Behalf Of jason kanter
Sent: Sunday, February 27, 2005 12:51 PM
To: Pianotech
Subject: which lubes?

=20

Couple of questions have arisen for me.

=20

Steinway upright, 1883, 20 cent pitch raise. In the high treble, I had
an awful time getting the tension to move across the pressure bars.
Pull, pound, pull, pound, pull, whack - no movement - gently pull a
little more - string suddenly goes to 5 cents sharp. Lower, whack,
lower, whack - no movement south - suddenly the string is 5 cents flat.
Sigh. Pull, pull, etc. What's the best lube for the region of the string
between the pin and the speaking length?

=20

The other situation is grand hammer flanges. WHen they need some alcohol
or some Protek lube or whatever, what's the neatest way to apply the
liquid without sacrificing effectiveness? Choices I've tried are:=20

(1) Spray from 1", left to right at an angle and right to left at an
angle, basically thereby soaking the whole flange in liquid and getting
the bushings wet. Messy. Not particularly efficient.

(2) Remove every other hammer/flange. Treat the removed ones over a
towel, putting a few drops on each bushing and working the flange back
and forth. Treat the others still attached to the action, tipping the
action up on end, putting a few drops on each bushing, tipping the
action the other way and repeating. Then replace all the removed hammer
flanges. The hammer-string alignment is preserved by the hammers that
were not removed. This is time-consuming, and seems inherently uneven
because the flanges that are removed get slightly different treatment
from those that are not removed.=20

(3) Remove them all. Creates an additional issue in hammer-string
alignment, takes longer, but gives the greatest control over the work.

=20

Thanks in advance. /Jason

=20

(ps. I am embarrassed to admit that when I was apprenticed in 1970-71 to
Sheldon Smith, the technique I learned was to slather everything with
WD-40. This was my first introduction to WD-40 and Sheldon obviously
thought it was great stuff. I am sure he abandoned that practice upon
revisiting some of these poor pianos.)

| |   | | |   | |   | | |   | |   | | |   | |   | | |   | |   | | |   |
|   | | |   | | =20

Jason Kanter . piano tuning, regulation & repair

jkanter@rollingball.com <mailto:jkanter@rollingball.com>  . cell 425 830
1561

serving the eastside and the san juans


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