[pianotech] Rebel action

[Joe Goss]

Arlie,
also check to see that the jack is not binding on the let off rail.
If it is is there too much key travel so add a punching.
Or loosen the nearest screw and move the rail towards you just a tad.
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Paul McCloud" <pmc033 at earthlink.net>
To: <pianotech at ptg.org>
Sent: Wednesday, July 06, 2011 8:21 AM
Subject: Re: [pianotech] Rebel action


> Hi, Arlie:
> You might look at the butt leather and see if it's come loose.  I'm not
> sure what you mean by "rebound against the rest rail".  I assume that the
> jack  isn't resetting and so the key doesn't repeat.  Somehow, that jack
> isn't going back under the hammer butt, even though you have a new spring
> installed and the jack is free.  Right?  You've got a little lost motion,
> so the jack can get back under?  The bridle tape is not interfering with
> the jack?  There is nothing that fell into the action, like a screw or
> something that prevents the jack from returning?  The wippen flange is 
> free
> and not sticky?  Key is free, and the grommet on the lifter wire isn't
> binding?  These spinets are hard to service because you can't see things
> easily.  One thing that causes sticking keys on Wurlitzer spinets is that
> the wippen heel felt has become crushed by the capstan, so it has a lot of
> friction.  The keys become sluggish ( and won't repeat).  Cure is to
> replace the felt on the wippen.  I would bet you have some sluggish keys
> too, no?  If so, look at the other parts which lead up to the jack,
> starting with the key, grommets, wippen flanges, lost motion, etc.
> Something is amiss, and you'll find it.
> Good luck.
> Paul McCloud
> San Diego
>
>
>> [Original Message]
>> From: Arlie Rauch <adarpub at midrivers.com>
>> To: <pianotech at ptg.org>
>> Date: 07/06/2011 6:49:25 AM
>> Subject: [pianotech] Rebel action
>>
>> 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
>
>
>
>