chapter contains information for field maintenance. The amount of
repair that can be performed by units having field maintenance responsibility is
limited only by the tools and test equipment available and by the skill of the
Section I. TROUBLE SHOOTING
41. Tools, Test Equipment, and Material Required for
The following tools and materials are required for field maintenance
01 Still Picture Projector AP-5 (1) .
Signal Corps Stock No.
Brush, stiff bristle
Cleaner, liquid, lens
Screw driver, -inch
Screw driver, Phillips, PL-469/U
Wrench, PL-111, adjustable
42. Preliminary Procedures
Before attempting repair of the equipment at the field maintenance
level, carefully follow the procedures outlined in paragraphs 22 and
32. If the equipment still fails to perform satisfactorily, refer to the
trouble-shooting chart (par. 43) to correct the difficulty.