TM 3-1040-262-13&P
CHAPTER 5
DIRECT SUPPORT MAINTENANCE INSTRUCTIONS
Section I. HYDROSTATIC AND VOLUMETRIC TESTING
5-1.
Hydrostatic and Volumetric Testing
5-2.
Scheduled Tests
Check the hydrostatic and volumetric test dates on the
Direct support maintenance personnel are to perform the
air cylinder.
specific tests every four years (TM 3-1040-251-15).
Section II. AIR PRESSURE ASSEMBLY GROUP
5-3.
Air Cylinder Rupture Disk and Attaching
from cylinder (6).
Parts
(3) Replace gasket (5).
Direct support maintenance personnel are authorized to
b. Installation.
Installation procedures are the
remove and replace the rupture disk and attaching parts.
reverse of removal procedures.
WARNING
c. Test Perform air cylinder test.
Assume
the
air
cylinder
is
5-5.
Pressure Regulator Assembly
pressurized.
Ensure that all air
Direct support personnel are authorized to replace the
pressure is relieved.
pipe tee and quick-disconnect coupling half of the
a. Removal
pressure regulator assembly.
a. Removal.
(2) Disconnect the valve actuating coupler
(1) Disconnect the female quick-disconnect
assembly (13, Fig. 1-4) from nipple assembly (14).
coupling half (8, fig. 1-4) from the male quick-disconnect
(3) Open spring loaded clamp (6, Fig 1-2) and
coupling half (7).
slide the air cylinder clear of the frame (2).
(2) Unscrew the quick-disconnect coupling
(4) Place the air cylinder in a vise.
(5) With the rupture disk assembly in the
(3) Unscrew the safety relief valve (6) from
the pipe tee (7) and retain safety relief valve (6).
personnel, remove the hexagon socket plug (4).
(4) Unscrew the pipe tee (7) from the
(6) Remove rupture disk (3) and gasket (2).
regulating valve (9).
(7) Discard the rupture disk (3), gasket (2),
b. Installation
and socket plug (4).
NOTE
b. Installation.
Installation procedures are the
reverse of removal procedures.
Tape, antiseize, (Item 6, App F) must be used on all
threaded connections.
5-4.
Air Cylinder Preformed Packing
Direct support personnel are authorized to replace the air
Installation procedure for the pressure regulator
assembly is the reverse of the removal procedure.
WARNING
Assume the air cylinder is pressurized.
5-6.
Ensure that all air pressure is relieved.
a. Removal
prescribed in TB 43-180 and at the scheduled interval.
(1) through (6)).
5-1