Grand Touch

[Kenneth Jankura]

A few Petrof grands I have serviced seem to have excess friction at  
the front rail pin, but only when you play them.
Only when you are putting side pressure as in real life do they seem  
to just drag something horrible.
Teflon powder on the bushings helps a lot.
I wouldn't really expect this on a used piano too much, but you never  
know.

Ken Jankura RPT
Newville, PA



On Jul 11, 2006, at 4:00 PM, Byeway222 at aol.com wrote:

> Thanks David and all who have replied to this so far.
> The balance hole area is, I agree,  very important and  will be my  
> next port of call.  Roger has brought the issue up with Petrofs  
> suggesting that this is an established problem.  Has anyone else  
> here come up against this?  It would seem that the keyboards are  
> Petrof's own design, married (in this case) with a Renner action.
>
> I have also looked at  the key leads as mentioned by David Love and  
> Terry Farrell but the amount of lead does not look particularly  
> abnormal for a concert grand.
>
> I am assuming that there are re-builders out there who have taken  
> these more modern Petrofs apart and anylised the design.  I welcome  
> all suggestions.
>
> ric