Piano Regulating - Adjusting Let-off On a Grand Piano I HOWARD PIANO INDUSTRIES

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Piano Regulating - Adjusting Let-off On a Grand Piano I HOWARD PIANO INDUSTRIES
One of the steps in regulating the action of a grand piano is to adjust the let-off which is adjusting how close the hammer gets to the string before it is released from the jack. This demonstration video shows the process of how to make this adjustment.
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🎥 Video Chapters
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00:00 - Intro
00:33 - Let-off Explanation
04:55 - Let-off Button Adjustment
08:23 - Let-off Regulating Screw Adjustment
⏩ Links and Resources:
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✔️ Piano Capstan Regulator with Wood Handle
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✔️ Magnetic Piano Let-Off Strip
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✔️ Piano Let-off Ratchet
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✔️ Let-off Regulating Screws
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Пікірлер: 57

@jimmilne19 9 жыл бұрын

Well done instructional video, clearly presented. The demonstration using the model was quite helpful. Thanks.

@dforsman4203 3 жыл бұрын

Thank you so much me and my Yamaha luv this channel I have learned so much and now I was able to once again make the right adjustment thanks to you. I hope soon to start work on an old upright I have and I will be using your store for parts and tools as I need them.

@12paulo64 9 жыл бұрын

Your explanations are great. Thank you

@Hut-181 2 жыл бұрын

Thanks for a great explanation. Do you know if the Adsilent let-off expansion system has any effect on future ability to regulate the instrument, or any potential downsides to having the system installed on a grand piano?

@namenaim1560 2 жыл бұрын

Very clear thanks

@MetaView7 6 жыл бұрын

Thanks for the video

@saveriosalerno9232 9 жыл бұрын

thanks for this video...compliment!

@notafanboy250 Жыл бұрын

Excellent video. Thanks for sharing.

@howardpianoind Жыл бұрын

Glad you enjoyed it

@notmuchwear 3 жыл бұрын

Your videos are absolutely wonderful but could you please have a look at your procedure around your audio in your recordings. In this particular video, your audio is so low level that I have to have the volume at my end set full blast. Now this in itself is no big deal but what happens for instance is KZfaq will sometimes place an advertisement during the video (and they do), then on comes an ear blasting as the advertisement is recorded at correct level. It just absolutely hammers the listeners ear drum. Apart from this your videos are the best. Good video, clear presentation, good wording, just extremely low level audio. Thank you for your presentations.

@joesalz9963 Жыл бұрын

I have a Young Change that can't seem to get any letoff on some keys an tips much appreciated!

@howardpianoind Жыл бұрын

If this is a Young Chang grand piano it may have what it referred to as "expanding action brackets" this can cause the action to be impossible to regulate properly unless the defective action brackets are repalced.

@thebinkles2 8 жыл бұрын

so..you would would do this process after you've done before to create that concert standard?? thank you I'm a big fan!! you will help me in my dream career!!!!

@howardpianoind 8 жыл бұрын

Hi Matias, Adjusting the letoff is one step in the regulation process to get the action to the optimal playing condition. It is used in conjunction with other steps. We will in the future be offering more videos on grand piano regulation as time allows. Thanks for watching! I'm grateful that our videos are helpful to you.

@Samspianopage 8 жыл бұрын

Some of the pre-1920s Bluthners had their own specific action different from the roller action which I don't think had letoff buttons or I can't see em.

@howardpianoind 8 жыл бұрын

Yes, there are definitely some pianos out there with non standard actions so making some of the regulation adjustments will be a little different on those pianos.

@SeekingHisWill78 8 жыл бұрын

Steve, how hard (or soft) is one supposed to press the keys when regulating letoff? I'm using a letoff rack set to where letoff should occur (3/32" below string height for this model piano). I just don't have a good feel for how firmly I should be pressing each key. I know they should all be uniform in pressure. Thanks!

@howardpianoind 8 жыл бұрын

You want to press the key very slowly. Not at all like you would press if you were playing the piano. Because you want to press it in a way that the knuckle doesn't lose contact with the repetition lever.

@SeekingHisWill78 8 жыл бұрын

Thanks!

@mjmeatman 7 ай бұрын

My Baldwin grand doesn’t have that cylindrical button that you adjusted/rotated in this video, but my key’s let off isn’t right. Is there a way to adjust the let off without that button? Thanks!

@howardpianoind 5 ай бұрын

There still should be a way to adjust when the toe of the jack is activated to release the jack. There might be a variation on your action that is different than the standard.

@Eddirickthyev 8 күн бұрын

I really would like to work and live in Your country...

@jeriellopez4927 5 жыл бұрын

You sound like saul goodman

@piano_piano_lontano 6 ай бұрын

True!😮😅...So, If your piano is out tune..better call Saul!

@anoshismail4408 4 жыл бұрын

Hey may I know that how could I set the string height when doing this practically? I mean when doing this placing the action on a table? What is the actual string position height from the bottom

@howardpianoind 4 жыл бұрын

It varies slightly from one piano to another so if you were doing it on a table you would have to measure the distance from the keybed to the strings. The height in the bass section will be different than in the tenor and treble sections. We sell a tool for measuring this. We also have a regulating tool that can be used to simulate the string height when the action is out of the piano: www.howardpianoindustries.com/tautline-regulating-tool/

@anoshismail4408 4 жыл бұрын

@@howardpianoind Thank you very much, I will place an order.

@zubinbalsara 6 жыл бұрын

Howard, in my piano one of the Key doesnt touch the string. Infact the hammer barelys comes up from its rested position. What I noticed is that when I Open the keyboard, PUSH UP the bottom tip of jack with my finger and then press the key, it plays the key for one time. As soon as I release the key it again stops working. Also when looking at the jack from the front of the keyboard, It feels like this key has a jack which is slightly lowered compared to all its adjacent keys. What should I do. Thanks for your help.

@howardpianoind 6 жыл бұрын

It sounds like most likely the problem is that the pinning on the jack is too tight and is making it so the jack isn't fully returning under the knuckle. You will have to either add some Protek CLP to the jack pin or you may have to ream and rep in the jack.

@zubinbalsara 6 жыл бұрын

Thanks for you reply, I will get the CLP and try that out first.

@finepianos 4 жыл бұрын

Before you rush to repin the jack, try to lubricate it with protek cpc lube first. Some occidation occurs during a period of time and protec helps to eliminate this occidation.

@henryalarcon1578 3 жыл бұрын

Hello, Sir. Does new pianos need to be regulated?

@howardpianoind 3 жыл бұрын

Yes, new pianos typically need to have regulation done for optimal performance.

@finepianos 4 жыл бұрын

Information for amatures. Would be better to explain the position of the jack under the knuckle and the distance under the repetition lever.

@kakaka4755 6 жыл бұрын

May I know why the back check is needed for the system? After the hammer clicked the string, the hammer should be dropped and stopped as the knuckle would hit the repetitive lever, so why the back check is used to stop and catch the hammer?

@howardpianoind 6 жыл бұрын

The repetition lever would not hold the hammer up. The shank is pushed up by the jack, but once the jack trips out, the hammer falls back until it is caught by the back check.

@kakaka4755 6 жыл бұрын

but when the jack trips out, the hammer falls and the knuckle hits the window of the repetitive lever. Then shouldn't this stop the falling motion of the hammer? Or it may bounce back and hit the string again if the back check is not installed?

@howardpianoind 6 жыл бұрын

The repetition lever will move up and down so the weight of the shank will bounce on the rep lever and possibly bounce back up since the rep lever has a spring on it.

@kakaka4755 6 жыл бұрын

Thanks for your explanation!

@user-xxxxxn 11 ай бұрын

let of is the same as escapement?

@howardpianoind 11 ай бұрын

Yes.

@MathieuPrevot 4 жыл бұрын

How does the letoff affect sound and control ?

@howardpianoind 4 жыл бұрын

If the let off is too far away then the hammer has farther to travel on it’s own.

@MathieuPrevot 4 жыл бұрын

@@howardpianoind That's right, by definition ! Do you know anything about sound and control in relation to letoff ?

@Samspianopage 8 жыл бұрын

My Yamaha G2B Disklavier has an issue whereby you only press the key down about halfway and you start to hear the twang of the hammer hitting the string very quietly. Obviously I need to get the whole action regulated anyhow but could that be letoff adjustment? Cheers

@howardpianoind 8 жыл бұрын

Hi Sam, Yes, it could be a letoff problem. So is the hammer blocking against the string before the hammer lets off?

@Samspianopage 8 жыл бұрын

No basically what happens is if you press down just a little like a third of the way you can faintly hear the twang of the hammer hitting the string or rubbing against it, but the notes all play fine the hammers don't get in the road but it's obviously not regulated right cause it's not meant to do that.

@Samspianopage 8 жыл бұрын

I'll try and make a video showing you what I'm on about it will probably make more sense on video if I demo it for you Steve.

@howardpianoind 8 жыл бұрын

Thanks Sam, yes a video would be helpful so I can see what's happening.