EAB Question

[Farrell]

If you see a Young Chang product with the serial number starting with a 
zero, check to see if hammers are starting to block - or whether let-off has 
been drastically lowered to compensate.

I just tuned a YC the other day with serial number starting in zero. Sure 
enough, bass and high treble hammers were blocking on a light blow. A look 
inside the action cavity revealed that I could almost fit my entire baby 
finger between the pinblock and the hammer rail in the center of the action, 
but the drop screws at the two ends of the hammer rail were almost touching 
the pinblock. Of course, that is not a problem on this piano because it is 
in a downtown Missionary Baptist Church - and as the flat-topped hammers 
suggest, I don't think this piano ever has experienced a light blow to a 
key.....

Weird stuff.

Terry Farrell

----- Original Message ----- 
> According to a bulletin authored by then National Service Manager Phil 
> Glenn in April 2003, the years 1990-94 were the problem years.
> Mike Kurta
----- Original Message -----
> EAB = Expanding Action Brackets.
>
> Is there a definitive time period of manufacturing that this phenomenon 
> was a concern?
>
> I know the manufacturers..I'm just not sure of the years of concern.
>
> Thanks,
>
> -Phil Bondi(Fl)
>