hammers separated from bottom of molding

[Dean May]

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Brian Doepke
Sent: Wednesday, July 09, 2008 9:25 PM
To: pianotech at ptg.org
Subject: hammers separated from bottom of molding

 

The piano is a Cable drop-action with several hammer felt separations from
the bottom of the hammer, the top is still attached (for the moment).

Is it possible to glue/clamp the felt while still in the piano?  I would
hate to have to pull the action.all those lifter wires to take off and put
back in the slots.

What type of adhesive is the best to use?  Wood glue?  PVE glue?

What type of clamps..any kind?

Thank you.

Brian P. Doepke, RPT

 

 

 

 

 

Below is something I posted last year. You don't have to use dental floss.
I'd probably use fly line backing now, pretty strong stuff. Titebond would
probably work well as a glue also. 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802

 

 

  _____  

From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Dean May
Sent: Thursday, January 04, 2007 9:19 AM
To: 'Pianotech List'
Subject: RE: Gluing felt to moldings

 

 

I was working on a pso spinet yesterday with multiple problems for a family
with a limited budget. One hammer had lost the felt and about ten others had
come apart on one side. I used Goop, needle nose vice grips and dental
floss. I pulled the loose felts the rest of the way off to get a good
coating of glue. I held the glued felt in place with the needle nose vice
grips, clamping the ends of the felt from the shank end of the molding. This
left the head of the hammer open so I could wrap the dental floss around it.

I pulled out about 20 inches of dental loss and tied a loop in one end to
form a lasso, leaving a good 3-4 inches of the short end of the floss
sticking out of the loop's knot. This gave me something to tie off against
later. The beauty of doing the lasso is that it gives you the first loop
around the felt without a knot, and it is self tightening. After pulling the
first loop down tight, it stayed tight while I wrapped 4 more loops around
the felt. Then I tied it off and went to the next hammer.

 

Worried about the remaining hammers, I soaked CA glue into the tail end of
the felt on top and bottom. It will be interesting to see if it holds.

 

One key in the treble section cracked at the dog leg. CA glue fixed it.

 

One corroded tenor string broke during tuning. I cut it off near the hitch
pin and formed a loop on the unbroken leg of the wire to keep 2 strings on
the note. It held.

 

Total time outside of tuning: about 45 minutes. Charges: $50.

 

Of course this is a piano that should be junked, but it is all the family
can afford and it gives their girls something to practice on.

 

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

 

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