[pianotech] Loose Let-off Buttons

[Noah Frere]

wow...my first expanding action brackets [?]

On Thu, Nov 18, 2010 at 10:38 PM, paul bruesch <paul at bruesch.net> wrote:

> The YC bracket issue was my first thought. 1989 is outside the reported
> scope, but it'd be worth a call to YC with the serial number. Or maybe check
> first if the spread is way beyond spec.
>
> I think they're still providing brackets. At our chapter meeting this week,
> I talked to a local tech who's encountered a piano with the issue. I don't
> recall if he said he'd talked to YC yet or not. I think he monitors this
> list... maybe he'll chime in!?!?
>
> Excellent writeup about the problem and the fix in August 2009 Journal.
>
> Paul Bruesch
> Stillwater, MN
>
>
> On Thu, Nov 18, 2010 at 9:29 PM, <tnrwim at aol.com> wrote:
>
>> Noah
>>
>> The problem on this piano is probably not the loose let off buttons,but
>> expanding action brackets. Weber grands were made by Young Chang. The action
>> brackets on YC's for many years, for some strange reason, actually expanded,
>> which threw off regulation.
>>
>>  YC used to give you four new brackets, but I don't know if they still do
>> that, so give Young Chang a call, and ask if they still give them out.
>> You'll need a serial number of the piano. The customer will have to pay to
>> have new action brackets installed.
>>
>> The latest information I have for Young Chang is:
>> Parts manager at Young Chang
>> John Chang, 866-798-6979 ext. 144
>> *
>> **Jchang at ycapiano.com* <Jchang at ycapiano.com>
>> Monica is the receptionist at ext. 0
>>
>> But I heard that John is no longer there.
>>
>> Wim
>>
>>
>> -----Original Message-----
>> From: Noah Frere <noahfrere at gmail.com>
>> To: pianotech <pianotech at ptg.org>
>> Sent: Thu, Nov 18, 2010 4:51 pm
>> Subject: [pianotech] Loose Let-off Buttons
>>
>> There is a possibility that this 1989 Weber Grand's let-off buttons are
>> slipping, since 1) they are very loose, and 2) supposedly the hammers began
>> blocking more than once not long after regulations. This is the first time
>> I've seen the piano, so I put a pencil mark in the center of the let-off
>> buttons to check their possible movement when i return in 3 months.
>> If they do move, is there a way to tighten them up, like Loctite or
>> something? Otherwise they will have to be replaced. At least the buttons
>> themselves, if not the metal thread.
>>
>
>
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