[pianotech] Rebel action

[JWyatt1492 at aol.com]

Hello Arlie,
 
    You did not mention the are but Wurlitzer mostly 
used the W. Brooks actions.  The compressed actions
did give  more trouble  than to larger   "drop" actions.
 
      I suggest you check the back-check shank to  make
sure  the glue is still holding firm in the butt and the back 
check its self.
    If it is you may need to change the back check  leather.  
 
  Good luck,
  Jack Wyatt
 
 
 
In a message dated 7/6/2011 8:49:25 A.M. Central Daylight Time,  
adarpub at midrivers.com writes:

Yesterday I serviced a Wurlitzer console.  The customer  complained about 
one key (2nd Eb above middle C) not working.  The  problem was that the jack 
would get stuck when the hammer returned.

I  tried various regulation changes (regulation button, back check, bridle 
wire,  etc.).  The capstan was proper.  When its action appeared to be  
regulated exactly as those around it, the hammer would rebound against the  rest 
rail.  The only way I could get it to behave somewhat properly was  to move 
the back check about a quarter inch further forward than all the other  
back checks.  Then it would not get stuck, but repetition suffered  some.

I even replaced the jack spring, thinking that was weak, but it  made no 
difference.

What have I possibly missed here?

Arlie  Rauch=
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