PianoDisc Installation Guide 61
. . . . .
A. Adjustment begins with manual pedal operation. (See Fig 42)
• Loosen (C) pedal solenoid stop pad and adjust it upward by turning it clockwise.
(looking up from the bottom)
• Loosen (B) pedal solenoid lock nut and adjust it upward by turning it clockwise.
(looking up from the bottom)
• Adjust (A) manual sustain pedal rod for minimal free play between damper tray
and bottom of damper lever. Adjustments may also be done at the pitman arm
(D) or sustain threaded rod.
Figure 43
B. Sustain pedal solenoid adjustment:
• Insert the test disk into the control box, select damper test (song 2) and press
play. Song repeat can also be selected for continual repeat.
• Observe the wedge damper lift, the dampers should just clear the strings.
Adjust the lift by turning the ¾” (19 mm) nut. Looking from the bottom, counter
clockwise is more lift and clockwise is less. After the adjustment is complete,
Tighten the ½” (13 mm) jam nut. (B)
• Adjust the loose motion in the pedal solenoid, by rotating the large steel washer.
(C) There should be only 1/16” (2 mm) of loose motion between the damper tray
and the sustain lever. After adjustment is complete, tighten the ½” jam nut on top.
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