TM 11-6720-242-35
CHAPTER 5
DEPOT MAINTENANCE
5-1. Depot Rebuild Operations
c. Replacement. Install the prism cage and the helical
gear and sprocket replacement (para 437a).
Complete rebuild of Camera, Still Picture, KA60C and/or
CAUTION
its individual components will be accomplished by depot
When pinning the helical gear and
maintenance
facilities
when
authorized
by
sprocket assembly, be sure the pin
Headquarters, Department of the Army. Rebuild action
does not protrude into the sprocket
includes all repair, rebuild, and replacement operations
tooth space at either end.
necessary to make equipment equivalent to new
material and suitable for return to Department of the
Army supply system stocks for reissue to using
5-4. Straight Shaft
organizations. Detailed procedures for accomplishing
(fig. 3-4 (4))
the repairs and adjustments established in preceding
portions of this manual and such additional repair and
a. Removal.
rebuild operations as deemed necessary will be
(1) Remove the sprocket, wheel, cam, and shaft
established by the facility performing the work.
assembly (para 4-37c).
(2) Remove the pin (91) securing the gear (90) to the
5-2. Depot Repair Procedures
shaft (89). Remove the gear from the shaft.
b. Fabrication.
This chapter contains repair procedures which can be
(1) Dimensions: see figure 5-2.
accomplished only at depot level.
These include
(2) Material: Stainless steel, 303Sc annealed or 303S
procedures for the removal, fabrication and /or
annealed, per MILS-7720.
alinement, and replacement of the following
(3) Finish: Passivate.
components of the camera:
sprocket, wheel, cam and shaft assembly can be
replaced in a camera housing, the sprocket (86, fig. 3-4
(4)) and the spur gear (90) must be assembled on the
new shaft (89) and alined as shown in figure 5-3. Once
the pins have been located so that the dimensions
shown are held, remove the sprocket and cam.
5-3. Helical Gear and Sprocket Assembly
d. Replacement.
a. Removal. Remove helical gear and sprocket
(1) Drive the pin (91) tight into the shaft (89).
assembly (para 437a).
(2) Insert the shaft and gear through the bearing (88)
b. Alinement of Prism and Helical Gear and Sprocket
and the housing (198).
Assembly. Before the prism cage assembly and helical
(3) Complete the replacement as described in paragraph
gear and sprocket assembly can be replaced in the
4-37c.
camera housing they must be alined as shown in figure
5-5. Power Supply Cover
5-1. Drill the hole for the tapered pin (92, fig. 3-4 (4)) 90
degrees away from the location of the original hole in
There are two identical covers (1, fig. 3-10) on the
the prism shaft. Maintain a 0.375 + 0.003 inch standoff
power supply assembly. The procedures that follow
between the gear and prism cage assembly and a
apply to both covers.
3750'+010' angle between the red dot on the socket
and the prism flat, as shown in figure 5-1.
5-1
