SECTION I
INTRODUCTION
1-1.
Scope
a. These instructions are published for use of personnel who operate
the Pitot Static Systems Tester, Model PST Type 2, end for personnel responsible
for maintenance of the tester. The Instructions provide information on
description, operation, maintenance, shipment, storage, and demolition of the
generator set, gasoline engine. Also Included is the applicable repair parts
end special tools list.
b. Appendix A contains the maintenance allocation chart. The chart
assigns the maintenance functions and repair operations to be performed by
the lowest appropriate maintenance level.
c. Report of errors, omissions, and recommendations for improving
this publication by the individual user is encouraged. Reports should be
submitted on DA Form 2028 (Recommended Changes to DA Publications) and forward-
ed direct to:
Commanding General,U. S. Army Aviation Systems Command,
ATTN: AMSAV-R-M, P. o. Box 209, St. Louis, Missouri 63166.
1-2.
Equipment Records
DD Form 314 (Preventive Maintenance Schedule and Record), DA Form 2409
(Equipment Maintenance
LOG (Consolidated), and DA Form 2404 (Equipment Inspec-
tion an Maintenance Worksheet) apply to this equipment. These fores are com-
pleted in accordance with TM 38-750, Army Equipment Record Procedures.
1-3.
PURPOSE OF EQUIPMENT.
1-4.
The test set is a portable, self-contained field instrument which is
used for checking the performance characteristics of vacuum and pressure
aircraft instruments, pitot and static systems, and as a primary vacuum end
pressure source for operation of aircraft computer systems. The test set
accurately simulates the engine vacuums and pressures and atmospheric pressures
which are present during normal operation of an aircraft. A small high-speed
pump in the test set produces a vacuum 29 inches of mercury and pressures in
the range of 0 to 25 psig.
1-5. DESCRIPTION OF EQUIPMENT.
1-6.
The test set is 17-5/8 inches long, 15-½ inches deep, and 19 inches
high when contained within its removable cover for transit. The cover contains
all accessories and tools necessary for proper operation of the test set. When
the cover is removed, all operating controls and indicators and accessories are
accessible for immediate use.
1-7.
The instrument panel cotains five aircraft instruments; rate-of-climb
indicator (1, figure 1-1), altimeter (2), airspeed indicator (4), manifold pressure
gauge (5), and
1-1