The photo below shows where the "lock" is located to remove the
fingerwheel
The RED here is the Spring steel lock shown in the above photo.
A.E. Co. Acrylic end Polycarbonate Fingerwheels
To remove an A.E. Co. D-780896-A acrylic or polycarbonate fingerwheel
from the dial shaft:
(1) Using a standard fingerplate removal tool, H-886316-1 (or STRONG
paperclip) insert the end into the small
hole located in the ribbed area of the fingerwheel surrounding the
number card just adjacent to the 6/MNO hole.
(2) The end of the tool must enter at a slight angle aimed toward the
6/MNO finger hole. Once the end is
seated against the latching lug (see Figure above), push gently
downward on the tool until the lug is down
and out of its latching detent (see Figure above).
(3) Rotate the dial clockwise past zero until the clamping disc
releases.
(4) Release the fingerwheel and allow it to return to rest (zero hole
between 8/TUV and 9/WXY on the number plate).
(5) Lift the fingerwheel toward the upper left away from the finger
stop.
NOTE: If the latching lug on the clamping disc fails to spring out of
its detent when pushed down by the
escutcheon tool, the zero finger hole will not pass beyond the finger
stop when the dial is wound. In this
case, hold the fingerwheel in the fully wound position, insert the
tool, and press against lug, while turning
the fingerwheel farther in clockwise direction.
To install an A.E. Co. D-780896-A acrylic or polycarbonate fingerwheel:
(1) Hold the fingerwheel parallel to the number plate. The zero hole
positioned between the 8/TUV and
9/WXY designations.
(2) Move the fingerwheel to the upper left, then lower the lower right
side under the finger stop.
(3) Center the dial on the clamping disc and rotate the fingerwheel
counterclockwise. As the zero passes
the 9/WXY position, the latching lug should engage with a click