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Like the conventional piano, the regulation of the keys and
action is very important and should only be undertaken by a
tuner-technician or a trained service man.
In the event excessive moisture in the air causes sluggish
keys or action centers, they should be corrected according
to the instructions given in the Wurlitzer Piano Service Man
"Ease Keys" is described on Pages 4 and 7 and "Shrink
ual.
ing Action Centers" is explained on Pages 12 and
Before shrinking action centers, turn the instrument
manual.
on for
several hours.
out the action sufficiently to make shrinking unnecessary.
LEVEL AND EASE KEYS
1.
If key leveling is necessary, it can be done by re
moving or adding paper punchings under the felt washers
on the balance rail.
2.
KEY DEPTH
The proper key depth is
of the white keys.
key depth is shallow, it may be increased by removing ma
terial from the bottom of the front of the white key.
the key depth is too deep, paper punchings of the required
thickness may be glued to the bottom surface of the front
of the key.
NOTE -
It is best to wait until the hammer let-off has
been adjusted before setting the key depth of the sharps.
If all the keys have a shallow depth, it may be better to
build up the balance rail either with paper punchings
der the keys, or shims under the balance rail.
ADJUST
3.
CAPSTAN SCREWS (See
The c apstan screws are adjusted so there is 3
from the bottom of the key frame to the tips of ·the ham
mers.
The hammer tip line will be even when capstan
screws are properly adjusted.
or lost motion as was the case in the Model 112.
scanned by tropical fish
KEY AND ACTION REGULATION
The heat from the amplifier may dry
REGULATING PROCEDURE
( See Page 11 of Model 112 section.)
If the key height is correct and the
Fig.
1 2 0-11
13/32"
measured at the front
120-K.)
They are not at the point
tropicalfishvintage.com
16
of that
If
un
13/16"
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