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#2245649 - 03/12/14 10:37 PM Soft-pedal, Trap-work Question  
Joined: Mar 2014
Posts: 2
lucheuer Offline
Junior Member
lucheuer  Offline
Junior Member

Joined: Mar 2014
Posts: 2
Hello All,

I'm just finishing a reconditioning project on a Cable Console piano. I installed new pedals but ran into a problem with the soft pedal trapwork mechanism. There was a very short lever attached to the soft pedal and a dowel which goes straight up to just below a small hook screw on the rest rail. Because the lever is so short and unlike the long wood ones with a fulcrum/pivot point, I don't understand how depressing this pedal can send the dowel upward and push the rest rail forward? The top of the dowel is obviously missing something but I don't know exactly what that is. It is a Pratt Read & Co Action which is pretty common so I'm sure someone here is familiar with this style of trapwork. I've attached some pictures so you'll know exactly what I mean. If you have any ideas about this they would be greatly appreciated! What's missing?

Thanks

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#2245655 - 03/12/14 10:45 PM Re: Soft-pedal, Trap-work Question [Re: lucheuer]  
Joined: Jun 2003
Posts: 25,047
BDB Offline
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Oakland
There would be a pin that goes through the screw eye. It may be somewhere at the bottom of the piano.


Semipro Tech
#2245657 - 03/12/14 10:50 PM Re: Soft-pedal, Trap-work Question [Re: lucheuer]  
Joined: Oct 2008
Posts: 217
David, OHIO Offline
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David, OHIO  Offline
Full Member

Joined: Oct 2008
Posts: 217
Coshocton, Ohio
Try a threaded rod into the dowel with a nylon nut with a steel washer and a balance rail cloth punching for the height adjustment. For the threaded rod going through you can put some heat shrink tubing on it or some black electrical tape to insulate for noise. I've done a similar field repair and works good.


David Chadwick RPT
Coshocton, Ohio
1931 Mason Hamlin AA
#2245670 - 03/12/14 11:11 PM Re: Soft-pedal, Trap-work Question [Re: lucheuer]  
Joined: Jun 2003
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BDB Offline
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Oakland
A bit of bushing cloth is better for noise control. It does not deteriorate like plastics.


Semipro Tech
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#2245693 - 03/13/14 12:23 AM Re: Soft-pedal, Trap-work Question [Re: lucheuer]  
Joined: Sep 2006
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Supply Offline
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Supply  Offline
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Vancouver Island, BC, Canada
You will never see (at least I have never seen) a bar going off the pedal like that. (But hey, I don't specialize in entry-level console pianos laugh )

There should originally have been a small "teeter totter" lever attached to the underside of the key bed. One side gets pulled down by the pedal, the other end pushes a shortened dowel up and moves the hammer rail forward. Look for signs of such a lever (screw holes etc) on the bottom of the key frame, directly above the pedal

#2245711 - 03/13/14 01:05 AM Re: Soft-pedal, Trap-work Question [Re: lucheuer]  
Joined: Jun 2003
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BDB Offline
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Oakland
Good catch, Jurgen. Actually, you can see screw holes where the original pedal would have been mounted. It would have pivoted in the middle, so the back of the pedal could have lifted the pedal rod. But as it is, it cannot work.


Semipro Tech
#2245979 - 03/13/14 02:07 PM Re: Soft-pedal, Trap-work Question [Re: BDB]  
Joined: Mar 2014
Posts: 2
lucheuer Offline
Junior Member
lucheuer  Offline
Junior Member

Joined: Mar 2014
Posts: 2
Alright, I see what happened. The pivot point was in the middle of the pedal but these ones have the pin positioned at the end. That short metal piece lines up exactly with the hook on the rest rail so I guess that is from the manufacturer. So now I either have to drill in the middle of the pedal length or add another rod to create the pivot point. Thanks.

#2245986 - 03/13/14 02:36 PM Re: Soft-pedal, Trap-work Question [Re: lucheuer]  
Joined: Mar 2009
Posts: 397
Jon Page Offline
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Jon Page  Offline
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Joined: Mar 2009
Posts: 397
Harwich Port, Cape Cod, Massac...
You can't drill a new hole because of the vertical holes in the length. You will need to get a new pedal with the proper pivot or just do away with the dowel and place a spring under the pedal. Who really uses that pedal anyway.


Regards,

Jon Page
Piano technician/tuner
Harwich Port, Cape Cod, Massachusetts, USA
http://www.pianocapecod.com
#2245993 - 03/13/14 02:56 PM Re: Soft-pedal, Trap-work Question [Re: lucheuer]  
Joined: Jun 2011
Posts: 819
MU51C JP Offline
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MU51C JP  Offline
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Posts: 819
England
You could easily fashion a fulcrum to sit under the metal bar and then simply adjust using a shorter threaded bolt attached to the new pedal. wink


Concert Tuner & Technician for the past 52 years in the United Kingdom
www.jphillipspianoservices.freeindex.co.uk : E-mail jophillips06@aol.com
#2246070 - 03/13/14 05:33 PM Re: Soft-pedal, Trap-work Question [Re: lucheuer]  
Joined: Jun 2003
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BDB Offline
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BDB  Offline
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Oakland
What I would suggest is simply ignoring that a worthless pedal on a cheap piano does not work.


Semipro Tech

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