drivescrew (6\. Tap off sprocket; pry out key (1l, and slide off
h. Remove six screws (4l, securing drivescrew bushing
(S) to camera and slide off bushing.
i. Repeat g and h above for remaining drive mechanism.
Figure 6-14. Camera drivescrews.
6-30. Drive Mechanism Removal and Disassembly
Figure 6-15. Drive mechanism, exploded
a Remove setscrew (15, fig. 6-15). Drive tapered pin (21
handwheel, extension, drive screw gear.
and slide off handwheel (1).
b Remove two screws (3), securing motor gear guard (4)
to shield plate (8) and lift off guard.
c Drive out tapered pin
extension (5) to drive screw (9).
d Drive out tapered pin (6l, securing driven gear (14) to
drivescrew and tap off gear.
e Repeat the above operations on the remaining drive
f. Remove two screws (7, fig. 6-15), securing shield plate
(8) to back support plate and lift out plate. Remove two screws
(12) to detach cover (1 1) from shutter switch (101. Remove
two screws (13) to detach shutter switch from shield plate (8 I.
Detach wires from switch. Remove counter drive chain (4, fig.
6-14) from counter drive sprocket (31.
. Remove setscrew (2, fig. 6-16) and drive out 6-14
tapered pin (7l, securing counter drive sprocket (8) to
Figure 6-16. Drive mechanism, exploded
counter drive sprocket, drive-crew bushing.