b. Preventive Maintenance Checks and Services
Records and reports of these checks and services must
Chart. The preventive maintenance checks and services
be made in accordance with the requirements set forth in
chart (para 5-5) outlines the functions to be performed at
c. Preventive Maintenance Checks and Services
a specific interval. These checks and services are to
Periods. Preventive maintenance checks and services
maintain the camera set in a serviceable condition; that
is, in good general (physical) condition. To assist in
specifies the items to be checked monthly.
maintaining serviceability, the chart indicates the item to
be inspected, the procedure to follow, and para graph
5-5. Organizational Monthly Preventive Maintenance Checks and Services Chart
Item to be
Button release and shut-
Rotate camera through a 180' arc. Check to see that button release
ter release lever.
moves outward as shutter release lever moves.
Shutter speed control
Rotate shutter speed control ring through its range of speed stops.
Check to see that shutter speed control ring rotates easily and
comes to definite stop in each detent position.
Diaphragm control lever.
With shutter speed control ring in T position and diaphragm control
lever in 22 position, operate button release. Check to see that aper-
ture opening is centered in lens,-and becomes larger as diaphragm
control lever is moved toward 4.5 position.
Back cover latch.
Move back cover latch in direction of tripod. Check to see that back
cover latch operates smoothly and back cover opens.
Back cover hinge
Open back cover fully. Check to see that back cover hinge does not
bind and is firmly attached to end of back cover.
Gently lift up on roller assembly release latch until roller assembly
is released. Check to see that roller assembly swings out and spread-
er rollers are clean, move without binding, and are free of damage
and foreign matter.
Roller assembly release
Move roller assembly into back cover and operating position. Check
to see that roller assembly is held securely by roller assembly re-
Close back cover. Check to see that back cover closes easily and both
sides latch securely.
Dual strobe support arm
Check condition of flash and shutter cords for frayed insulation and
Strobe and clamp assem-
Install strobe and clamp assemblies on dual strobe support arm as-
sembly and connect flash cords. Check to see that quick-release
clamp engages easily with quick-release clip on dual strobe support
arm assembly, and flash cord connector fits firmly in strobe assem-
Telescope clamp screw.
Slowly release telescope clamp screw. Check to see that camera
assembly can be placed at any desired position.
Leg hinge clamp screw.
Release leg hinge clamp screw. Check to see that tripod legs and leg
links can be placed at any desired position.
(4) Scored or excessively worn bearing and
5-6. Visual Inspection
a. Carefully examine the components of the
set before attempting
equipment. This preliminary inspection may save repair
(6) Broken or cross-threaded thumbscrews,
time and may prevent damage to the equipment. Inspect
locking knobs, and threaded inserts.
the equipment for the following:
(7) Cracked, chipped, or broken castings on
(1) Missing or broken parts.
tripod and camera assemblies.
(2) Loose or missing screws.
b. Operate the equipment and observe the action.
(3) Electrical cables that are frayed, cracked,
Refer to the operator troubleshooting chart