Welcome to the Piano World Piano Forums
Over 2 million posts about pianos, digital pianos, and all types of keyboard instruments
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

Gifts and supplies for the musician
SEARCH
the Forums & Piano World

This custom search works much better than the built in one and allows searching older posts.
(ad 125) Sweetwater - Digital Keyboards & Other Gear
Digital Pianos at Sweetwater
(ad) Pearl River
Pearl River Pianos
(ad) Pianoteq
(ad) P B Guide
Acoustic & Digital Piano Guide
Ad (Piano Sing)
How to Make Your Piano Sing
Who's Online
88 registered (Anne'sson, Anita Potter, accordeur, Almaviva, anotherscott, 36251, 28 invisible), 1399 Guests and 12 Spiders online.
Key: Admin, Global Mod, Mod
Quick Links to Useful Piano & Music Resources
Our Classified Ads
Find Piano Professionals-

*Piano Dealers - Piano Stores
*Piano Tuners
*Piano Teachers
*Piano Movers
*Piano Restorations
*Piano Manufacturers
*Organs

Quick Links:
*Advertise On Piano World
*Free Piano Newsletter
*Online Piano Recitals
*Piano Recitals Index
*Piano & Music Accessories
*Music School Listings
* Buying a Piano
*Buying A Acoustic Piano
*Buying a Digital Piano
*Pianos for Sale
*Sell Your Piano
*How Old is My Piano?
*Piano Books
*Piano Art, Pictures, & Posters
*Directory/Site Map
*Contest
*Links
*Virtual Piano
*Music Word Search
*Piano Screen Saver
*Piano Videos
*Virtual Piano Chords
(ad) Estonia Piano
Estonia Pianos
Topic Options
#608535 - 02/15/05 04:25 PM Excessive jack/hammer butt friction?
LifeWithoutLuigi Offline
Full Member

Registered: 01/01/05
Posts: 74
Loc: Kah-Lee-For-Neeah
I have a 1923 Strohber 45" console... My problem is that when you depress a key, it takes more weight to move the key through the "after-touch" when the jack is sliding out from under the hammer butt. About half of the keys have this to varying degrees. I'm a rank amateur at regulating, but the hammers let off at 1/8" from the strings, the key dip is at just over 3/8", and the backchecks are set so the hammers check at 5/8" from the strings. There is enough aftertouch for the backchecks to work, but I would like to do something about the different feel of the aftertouch because it causes the hammers of those keys to bounce against the strings when playing very softly. Thanks for your help!
_________________________
Today I will gladly share my experience and advice, for there are no sweeter words than, "I told you so."

Top
(ad PTG 757) The Value of PTG Membership
The Value of a PTG Membership
#608536 - 02/15/05 04:46 PM Re: Excessive jack/hammer butt friction?
Piano Guy Offline
Full Member

Registered: 07/01/03
Posts: 400
Loc: Southern Ontario,Canada
Check the bucksin under the butt, where the jack trips out...excessive wear or flatening an cause heaviness or more friction. Also on the hammers that block...double check the dip...even a wee bit too much can cause this. Try adding a very thin paper punching .. and see if it helps.
_________________________
Richard, the"Piano Guy"
Piano Moving Tuning & Repair
From London ON to Fort Erie ON

Top
#608537 - 02/15/05 08:23 PM Re: Excessive jack/hammer butt friction?
Sam Casey Offline
1000 Post Club Member

Registered: 02/05/05
Posts: 1135
Loc: SW Missouri
My money is worn butt leathers and graphite off the jacks. I'll bet there's all sorts of inconsistancy in the action, keys, etc. given the age of the piano. 1923 console?

Top
#608538 - 02/15/05 08:48 PM Re: Excessive jack/hammer butt friction?
Keith Roberts Offline
1000 Post Club Member

Registered: 05/04/04
Posts: 1984
Loc: Murphys, Ca
What's the hammer blow distance? Take into account string grooves. Sounds as if you don't have enough dip for the blow distance if the hammers are bobbling. You measure the aftertouch on an upright by how much the jack clears the butt. Back checks can be set anywhere after keydip is established. Setting them closer stops the bobbling because the butt can't sit back on the jack until you play soft and you don't push the key far enough. The proper blow distance for the key dip you like is what needs to happen first. Push the hammer rail forward with some felts and take up the lost motion and see if that solves the problem. Of course if the jack is clearing the butt by a lot, more blow distance. Blow distance is your aftertouch adjustment. Then solve the friction problem by spraying the butt leather with Mclube 444. Heard that at the convention. Or TFL spray.

kpiano
_________________________
Keith Roberts
Associate, PTG
Keith's Piano Service
Hathaway Pines,Ca

Top
#608539 - 02/17/05 05:07 PM Re: Excessive jack/hammer butt friction?
LifeWithoutLuigi Offline
Full Member

Registered: 01/01/05
Posts: 74
Loc: Kah-Lee-For-Neeah
Thanks for your help, everyone!

On this piano, the butt buckskin is a little wider than the jack tip. The part of the buckskin that is not touched by the jack is obviously thicker than the part that the jack touches. So, probably a lot of wear as you mentioned.

I'll go back and check the hammer blow distance and adjust if necessary.

Maybe it's just my technique, but the hammers bobble when I'm playing softly because I'm not depressing the keys all the way, due to the increased key resistance when it's time for the jacks to trip.

Thanks again, good day!
_________________________
Today I will gladly share my experience and advice, for there are no sweeter words than, "I told you so."

Top
#608540 - 02/17/05 06:50 PM Re: Excessive jack/hammer butt friction?
JIMBOB Offline
1000 Post Club Member

Registered: 11/18/02
Posts: 1323
Loc: South Carolina
The buckskin is worn from the sound of it. This is a common problem on older uprights. if you look closely it probably looks like the top of the jack is riding in a groove. To reduce the friction you can try using DAG on the tops of the jacks or some teflon powder. the other lubes mentioned will help but the best solution in the long run will be to replace the buckskin. you are trying to regulate to specs but you have worn action parts. Another thing about specs- they are guidelines and you may have to compromise to make things work,
_________________________
Certificate in Piano Technology
Associate Member PTG
Yamaha & Petrof/Nordiska Training
Dampp-Chaser System Installer
Certified Pianomation Installer

Top
#608541 - 02/19/05 10:49 PM Re: Excessive jack/hammer butt friction?
LifeWithoutLuigi Offline
Full Member

Registered: 01/01/05
Posts: 74
Loc: Kah-Lee-For-Neeah
Thanks for the suggestion, Jimbob. I'll order some teflon powder tomorrow and try that.
_________________________
Today I will gladly share my experience and advice, for there are no sweeter words than, "I told you so."

Top

Moderator:  Piano World 
What's Hot!!
Christmas Header
Christmas Lights at Piano World Headquarters in Maine 2014
-------------------
The December Free Piano Newsletter
-------------------
Forums Rules & Help
-------------------
ADVERTISE
on Piano World

The world's most popular piano web site.
-------------------
PIANO BOOKS
Interesting books about the piano, pianists, piano history, biographies, memoirs and more!
(ad) Yamaha CP Music Rest Promo
Yamaha CP Music Rest Promo
(ad) HAILUN Pianos
Hailun Pianos - Click for More
Ad (Seiler/Knabe)
Seiler Pianos
(125ad) Dampp Chaser
Dampp Chaser Piano Life Saver
(ad) Lindeblad Piano
Lindeblad Piano Restoration
Sheet Music Plus (125)
Sheet Music Plus Featured Sale
New Topics - Multiple Forums
Making a New York Steinway sound like a Hamburg Steinway
by nphase
21 minutes 3 seconds ago
Merry Christmas from Brazil! Feliz Natal!!
by Piano_Brazil
Today at 09:19 PM
Rzewski: De Profundis
by pianoloverus
Today at 09:17 PM
Guide to skills level
by Gemgem
Today at 08:55 PM
piano with willie
by TonyB
Today at 08:25 PM
Forum Stats
77375 Members
42 Forums
160028 Topics
2349990 Posts

Max Online: 15252 @ 03/21/10 11:39 PM
Gift Ideas for Music Lovers!
Find the Perfect Gift for the Music Lovers on your List!
Visit our online store today.

Visit our online store for gifts for music lovers

 
Help keep the forums up and running with a donation, any amount is appreciated!
Or by becoming a Subscribing member! Thank-you.
Donate   Subscribe
 
Our Piano Related Classified Ads
|
Dealers | Tuners | Lessons | Movers | Restorations | Pianos For Sale | Sell Your Piano |

Advertise on Piano World
| Subscribe | Piano World | PianoSupplies.com | Advertise on Piano World | Donate | Link to Us | Classifieds |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | Press Room |


copyright 1997 - 2014 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission