both ends of camera.
. Remove six screws (10, fig. 6-19) securing limit switch
track (9) to rail (7). Remove 26 screws (8) and washers,
securing camera rail Hi) to tube (12 I. Lift off the rail;
disconnect all accessible wiring .
. Place handwheel
on drive crew (12 and 13, fig. 6-14).
Turn counterclockwise to work out drivescrew unit until it is
dislodged from rear tube flange (14, fig. 6-19). From the
copyboard end of camera, remove the drivescrew from the front
tube flange. Screw off the len-board and copyboard drive
brackets from drivescrew. Remove remaining drivescrew in the
. Remove tapered pin (11, fig. 6-17)
of universal joint
(12) to disconnect the lensboard extension shaft (10) from the
back support plate 14-. In similar manner, disconnect universal
joint on other side of camera rail (5 I.
. Unclamp flexible rubber hose (12, fig. 1-4J from
vacuum back valve housing (1). Then remove eight hex socket
head screws (3, fig. 6-17 (and lockwasher (2) to release back
support plate (4) and camera back from tube Mange.
. Remove four screws (3, fig. 6-21)
to release chain end
cover (1) from camera skid (8). Remove other end of cover at
opposite end of skid in similar manner. Remove 16 screws (3),
securing chain cover i 4) and lift off cover exposing drive chain
(5) and drive sprockets (6 I.
. Remove setscrew (10, fig. 6-21) from drive sprocket
and tap out tapered pin (I) to release jack screw (2). In (similar
manner, remove jack screw at other end of camera. Remove
drive chain and sprockets from camera skid.
. Unscrew rear jack screw (13, fig. 6-19) from tube
Range (14) and front jack screw (14, fig. 6-17) from tube flange
(13). Lift off camera tube and disconnect all wiring.
Drive sprocket and chain, exploded