PianoDisc Installation Guide
37
. . . . .
E. Drill holes for ball linkage.
(See Fig. 22) Drill a 3/16”” (4.5 mm) hole in the
end of lever #1. Screw ball linkage into hole (Screw is self tapping).
F. Assemble the pivot brackets to lever #1.
In the kit there are six “L” (three
left and three right) shaped mounting brackets. Use two of them as pivot
brackets for lever #1. Slide two of these brackets onto the pivot pins on
each side of lever #1.
NOTE:
A thrust washer is built into the pivot bracket. Always place the
shoulder side of the washer towards the lever.
G. Mount lever #1 onto the piano.
Place lever #1 under the sostenuto rod
parallel to the solenoid slot, positioning it equal distance between the
sostenuto lever and the solenoid slot. Using the screws supplied in the kit,
secure lever #1 to the keybed.
H. Establish the location for the coil spring.
PianoDisc does not supply a
coil spring for the sostenuto trapwork. The reason is simple: This type of
spring is typical in conventional sostenuto trapwork, and consequently, is
probably already available from the trapwork of the piano you are working
on presently. In fact, since most pianos have the “push” type sostenuto
trapwork you will likely acquire an abundance of discarded springs from
other installations.
To find the place at which the sostenuto coil spring will be glued to the
keybed, find the point on the sostenuto lever that comes in contact with the
lyre rod. The spring will be recessed into the keybed, directly underneath
the sostenuto lever at that point. (See Fig. 20) Once this location is
determined, mark this spot on the keybed and prepare to drill.
I. Mount the coil spring.
Remove the right pivot bracket on lever #1, then
slide lever #1 off the other pivot bracket, removing the lever. Using a 1”
spade drill bit, drill a hole 1/4” (6.5 mm) deep into the keybed at the point
that was marked. Use silicone to glue the coil spring in place, and secure it
with masking tape until it dries.
J. Place pivot pin in lever #2
. Drill a hole in lever #2 for the pivot pin (See
Fig. 22). Lightly grease the pivot pin and tap the pivot pin into the hole.
Summary of Contents for PianoCD
Page 1: ...PIANODISC SYSTEMS Installation Guide for Grand Pianos Version R C 6 8 07...
Page 7: ...PianoDisc Installation Guide 7...
Page 18: ...18 PianoDisc Installation Guide 228CFX PianoCD iQ Figure 7A...
Page 19: ...PianoDisc Installation Guide 19 Figure 7B...
Page 32: ...32 PianoDisc Installation Guide 228CFX PianoCD iQ...
Page 52: ...52 PianoDisc Installation Guide 228CFX PianoCD iQ Figure 35...
Page 62: ...62 PianoDisc Installation Guide 228CFX PianoCD iQ...
Page 64: ...64 PianoDisc Installation Guide 228CFX PianoCD iQ...
Page 68: ...68 PianoDisc Installation Guide 228CFX PianoCD iQ...
Page 84: ...84 PianoDisc Installation Guide 228CFX PianoCD iQ...