2017 was our 20th year online!

Welcome to the Piano World Piano Forums
Over 3 million posts about pianos, digital pianos, and all types of keyboard instruments.
Over 100,000 members from around the world.
Join the World's Largest Community of Piano Lovers (it's free)
It's Fun to Play the Piano ... Please Pass It On!

Shop our online store for music lovers
SEARCH
Piano Forums & Piano World
(ad) Piano Sight Reading
train piano sight reading with your iPhone or iPad
(ad)
Best of Piano Buyer
 Best of Piano Buyer
(ad)
Pianoteq
Steinway Spiro Layering
(ad)
Wessell Nickel & Gross
PianoForAll
Who's Online Now
28 members (Gord Webster, Archipelago, earlofmar, 11 invisible), 399 guests, and 598 robots.
Key: Admin, Global Mod, Mod
(ad)
Estonia Pianos
Estonia Pianos
Previous Thread
Next Thread
Print Thread
Hop To
#3104158 04/09/21 12:52 PM
Joined: Aug 2008
Posts: 27
N
Full Member
OP Offline
Full Member
N
Joined: Aug 2008
Posts: 27
Greetings all

I have a 25 yr old Yamaha U3
I have it tuned 2 times a year
A year ago had work done to replace springs
Regulation will take place with next tuning (a month away?)

Tone of piano is a bit harsh
difficult to play softly

Yes hammers are flattened and hardened
Does Voicing help with this Harsh tone?
Can the hammers be completely replaced with new (at what cost)

Thanks

(ad)
Piano & Music Accessories
piano accessories music gifts tuning and moving equipment
Joined: May 2007
Posts: 2,827
D
Gold Subscriber
2000 Post Club Member
Offline
Gold Subscriber
2000 Post Club Member
D
Joined: May 2007
Posts: 2,827
New hammers can be fitted. But it's likely that your hammers will respond well to filing them to re-face the playing surface, and then possibly some voicing work.

Joined: May 2007
Posts: 2,827
D
Gold Subscriber
2000 Post Club Member
Offline
Gold Subscriber
2000 Post Club Member
D
Joined: May 2007
Posts: 2,827
You can read Chuck Behm's excellent article on hammer filing, about a third of the way down this page of my website (expand to full screen for easy reading) Technical Info 1

Joined: Jun 2003
Posts: 29,501
B
BDB Offline
Yikes! 10000 Post Club Member
Offline
Yikes! 10000 Post Club Member
B
Joined: Jun 2003
Posts: 29,501
You can take off a certain amount of felt when resurfacing upright hammers, but eventually they will require replacement sooner than on a grand, because the regulation of the action depends on how far the face of the hammers are from the strings, the hammer blow distance. If the distance is too great, the let-off will either have to be increased to the point that it becomes difficult to play softly, or the key dip will need to increase. You can move the hammers closer by shimming the hammer rail, but that lessens the amount that the key goes down before the dampers lift, so you need to either change that, which is difficult. Eventually it becomes easier just to replace the hammers.

I feel you can take off about 1/8" or 3 mm., and the next time it is better to replace the hammers.

For really old pianos I will crank in the action bolts, which avoids some of these problems, but in those cases, the next stop is usually the junkyard.


Semipro Tech
Joined: May 2007
Posts: 2,827
D
Gold Subscriber
2000 Post Club Member
Offline
Gold Subscriber
2000 Post Club Member
D
Joined: May 2007
Posts: 2,827
Good points, to be borne in mind.

If an upright action is still functioning well, in terms of set-off, control, no hammer bobbling etc, even though the hammers are grooved, then it is likely possible to re-face the hammers by filing, without having to shim the hammer rest rail etc.

Hammer filing need not remove all trace of grooves. The bottom of the grooves effectively remains after filing, visible on the hammers. That being the case, the actual blow distance is not increased by the filing, since the bottoms of the grooves are still where they were - it's just the steep sides of the grooves that have gone. Admittedly, the blow distance will be slightly greater than the original specification - but if the action is playing satisfactorily, extensive re-regulation won't be needed.

But in line with BDB's comments, filing upright hammers is really a once-in-a-lifetime thing for a set of upright hammers. It's not something to be repeated every few years!

Last edited by David Boyce; 04/09/21 04:00 PM.
Joined: Feb 2017
Posts: 3,974
P
3000 Post Club Member
Offline
3000 Post Club Member
P
Joined: Feb 2017
Posts: 3,974
25 years is approaching the end of the road for Yamaha hammers. There are things that can be done but I would hesitate to recommend procedures that require experience and practice to anyone on a public forum. I think you have been given good advice. Shaping hammers is one of those things. Unless you have the tools and experience you are likely to create a bigger mess (unless of course you want to LEARN on these hammers and then replace them...)

Edit: Springs at 25 years? Hmmm. Odd.

Peter Grey Piano Doctor

Last edited by P W Grey; 04/09/21 04:22 PM.

Peter W. Grey, RPT
New Hampshire Seacoast
www.seacoastpianodoctor.com
pianodoctor57@gmail.com
https://www.youtube.com/watch?v=PK0T7_I_nV8
Joined: Aug 2008
Posts: 27
N
Full Member
OP Offline
Full Member
N
Joined: Aug 2008
Posts: 27
Thank you all for the Insightful comments

Yes my piano has had the hammers shaved/trimmed TWICE
Yes I think my piano is at the end of it's road.

To be clear it is a GOOD piano, but I just want better quality piano.

@pw Gray you have a comment about springs at 25 years. Can you elaborate?

Joined: Feb 2017
Posts: 3,974
P
3000 Post Club Member
Offline
3000 Post Club Member
P
Joined: Feb 2017
Posts: 3,974
Never had to replace springs on a Yamaha. Cords always...springs never.

Peter Grey Piano Doctor


Peter W. Grey, RPT
New Hampshire Seacoast
www.seacoastpianodoctor.com
pianodoctor57@gmail.com
https://www.youtube.com/watch?v=PK0T7_I_nV8
Joined: Aug 2008
Posts: 27
N
Full Member
OP Offline
Full Member
N
Joined: Aug 2008
Posts: 27
P W Grey

Thank you for that info

Joined: Sep 2019
Posts: 541
500 Post Club Member
Offline
500 Post Club Member
Joined: Sep 2019
Posts: 541
Originally Posted by P W Grey
Never had to replace springs on a Yamaha. Cords always...springs never.

Peter Grey Piano Doctor

How many years the U3 cords use to last?. Approximately, of course


Yamaha U3H
Kawai VPC1
...plus some other DPs, synths, controllers and VSTs

[Linked Image]
Joined: Feb 2017
Posts: 3,974
P
3000 Post Club Member
Offline
3000 Post Club Member
P
Joined: Feb 2017
Posts: 3,974
Up until the late 80's they would generally last about 25 years or so. Then Yamaha fixed the problem. I've never seen a broken cord on a Kawai, and ive seen certain European makes go far, far longer. Whether it was intentional or not, Yamaha's choice of material for that application was less than ideal, however in the context of overall "design lifespan" intent, it served its purpose. But the fact that others did it better shows that they COULD have.

Peter Grey Piano Doctor


Peter W. Grey, RPT
New Hampshire Seacoast
www.seacoastpianodoctor.com
pianodoctor57@gmail.com
https://www.youtube.com/watch?v=PK0T7_I_nV8
Joined: Sep 2019
Posts: 541
500 Post Club Member
Offline
500 Post Club Member
Joined: Sep 2019
Posts: 541
Originally Posted by P W Grey
Up until the late 80's they would generally last about 25 years or so. Then Yamaha fixed the problem. I've never seen a broken cord on a Kawai, and ive seen certain European makes go far, far longer. Whether it was intentional or not, Yamaha's choice of material for that application was less than ideal, however in the context of overall "design lifespan" intent, it served its purpose. But the fact that others did it better shows that they COULD have.

Peter Grey Piano Doctor

OK, thanks. My 1976 U3H had the cords replaced in 2016. Even if they used old style material (is there any way to find out?), it seems I am safe for some years


Yamaha U3H
Kawai VPC1
...plus some other DPs, synths, controllers and VSTs

[Linked Image]

Moderated by  Piano World 

Link Copied to Clipboard
(ad)
Faust Harrison Pianos
Faust Harrison 100+ Steinway pianos
(ad)
Couch to Concert Hall
Couch to Concert Hall
(ad)
PianoDisc

PianoDisc
(ad)
Piano Life Saver - Dampp Chaser
Dampp Chaser Piano Life Saver
(ad)
Mason & Hamlin Pianos
New Topics - Multiple Forums
Pet damage
by twocats - 05/07/21 07:37 PM
Can anybody figure out the chords to this intro?
by MrSnrub - 05/07/21 07:19 PM
Abandoned Pianos
by Piano.Brazil - 05/07/21 07:06 PM
Petrof IV vs. Schimmel C126 vs. Kawai GS40
by mozart1791 - 05/07/21 07:03 PM
CLP-700 series headphone output
by Clavio - 05/07/21 06:48 PM
Download Sheet Music
Virtual Sheet Music - Classical Sheet Music Downloads
Forum Statistics
Forums42
Topics206,785
Posts3,090,982
Members101,444
Most Online15,252
Mar 21st, 2010
Please Support Our Advertisers

Faust Harrison 100+ Steinways

Dampp Chaser Piano Life Saver

 Best of Piano Buyer

PianoTeq Bechstein
Visit our online store for gifts for music lovers

Virtual Sheet Music - Classical Sheet Music Downloads



 
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 |
| |Contact | Privacy | Legal | About Us | Site Map | Free Newsletter | MapleStreetMusicShop.com - Our store in Cornish Maine


© copyright 1997 - 2021 Piano World ® all rights reserved
No part of this site may be reproduced without prior written permission
Powered by UBB.threads™ PHP Forum Software 7.7.5