[CAUT] Upright geometry problem (Nordiska)

Jim Busby jim_busby at byu.edu
Thu Oct 11 20:23:47 MDT 2007


Jon,

Yes they are (not so) long wires, and that makes sense. How much further
back on the cushion? The wire is kind of short and such a "dog leg" will
lower it and create bunches of lost motion. I'll try a sample and see it
the beast will take it.

Thanks!
Jim Busby BYU

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
Jon Page
Sent: Thursday, October 11, 2007 5:30 PM
To: caut at ptg.org
Subject: [CAUT] Upright geometry problem (Nordiska)

You need to have the capstan push the front of the wippen through a 
greater distance
to give the jack sufficient clearance. This means relocating the 
capstan further back \towards the flange.

If the capstans are on a long wire, you can simply bend them back. 
Usually the wippen
rail is a portion of the hammer/damper rail assembly and shimming 
might not help
because the tilt would disturb damper seating.

Decrease hammer blow, increase dip.  Balance rail shims on the front 
side of the pins
to increase KR.

Rotsa Ruck.
-- 

Regards,

Jon Page



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