jack slides out before delivering power

[Isaac Sadigursky]

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loss of power,poor repetition means jack problem..pinning is crutial! jack is not returining back..let me know about the results! good night! isaac centerpinsky


----- Original Message ----- 
From: 
To: pianotech@ptg.org
Sent: 11/22/04 10:50:59 PM 
Subject: Re: jack slides out before delivering power


In a message dated 11/22/04 10:43:49 PM Pacific Standard Time, irs.pianos@earthlink.net writes: 



         Working on a Hamilton built by Baldwin studio upright today, I noticed that  on a reallly soft blow to the key, the jack wants to slip forward almost to the back of the catch's shank, instead of delivering the kick to the base of the hammer butt. 

            The customer complained that, on a soft blow the key wouldn't play and would sort of jam. Looking at this situation I saw that the jack would sometimes just slip out too much forward and not deliver its power. What would cause this? Could the keys not be levelled high enough?


Hi Julia, 

I'm sort of directionally confused here.  Is forward towards the piano, or towards the player? 

Thanks, 

Dave Stahl 
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