Damper Underlever Springs (Aug 27, 7:47pm)

Newton Hunt nhunt@rci.rutgers.edu
Wed, 28 Aug 1996 09:46:50 -0400


Good morning Avery,

Are you sure the springs are too strong?  If they are lifting early that will
give an illusion of heavy touch.  Try setting the timing on a few offenders and
see if that solves the problem.

If you are going to reset the springs there is one way to do the job without a
gram guage.  Remove the tray and turn it up side down and adjust the springs by
how far the levers hang.  Observe and take into account the lead weights in the
levers.  Alos some springs can be adjusted by adjusting how close the coil is
to the flange or the flange rail.  By pulling the wire out of its hole weakens
the spring action by raising the coil relative to the long arm end of the
spring.

The spring is an adjunct to the leads and the weight of the hammer heads and is
intended to introduce springyness to the sytem and help dampening by absorbing
energy through the spring.  They are not intended to substitute for bad felt or
poor regulation.

Good damping.

	Newton
	nhunt@rci.rutgers.edu




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