40
N1
C
KEY COVER
<Side view>
ARM
Fig. 8
Fig. 9
Fig. 10
KEY COVER
KEY
FELT (RED)
A
<Side view>
B
KEY COVER
BLACK KEY
<Side view>
Standard 2 Make sure that with the key cover closed the
difference in level between the front surface of
the arm and the front of the key cover is within
the standard (especially the difference on the left
and right). (Fig. 10)
(Reference)
Standard
value
C
(at shipment):
3.2 mm ±2 mm, difference on the left and right
within 2 mm (Fig. 10)
4) Drill a pilot hole in the inner surface of the arm matching
the hole on the back side of the damper holder body.
Pilot
hole:
φ
2.1 mm ±0.1 mm, depth 20 mm
5) Remove the damper holder and countersink the hole.
φ
5
mm x 90°
6) Attach the damper holder, repeat step 3) for front/back
position alignment, and tighten the screw of the damper
holder.
7) Perform the key cover replacement procedure step "(9)
Install arm upper and front board".
• Key cover set (WY612200)
<< Contents of set >>
3.5 mm
4.5 mm
5.5 mm
s+EYCOVER
s$AMPERHOLDERSPACER
s$AMPERHOLDER,
s2UBBERBUTTON
WU18480
WU82040
WY158800
Z2681600
Z0061800
Z0062500
WU89920
※
The damper holder R (WY158900)
shall be symmetrical to the other.
