TM 3-1040-263-34
CHAPTER 4
GENERAL SUPPORT MAINTENANCE INSTRUCTIONS
Section I. WATER SEPARATOR AND HIGH-PRESSURE RELIEF VALVE
4-1.
General
4-3.
High-Pressure Relief Valve
General support maintenance personnel are authorized
WARNING
to repair and test the water separator and to test, adjust,
and repair the high-pressure relief valve. A repair kit is
Use extreme care when removing the
used to repair the high-pressure relief valve.
high-pressure relief valve cap from the
body since the cap compresses a spring.
4-2.
Water Separator
a. Disassembly. Using figure 4-2 as a guide,
a. Disassembly. Using figure 4-1 as a guide,
disassemble the high-pressure relief valve.
disassemble the water separator.
b.
Cleaning and Inspection.
Cleaning and Inspection.
b.
(1) Clean all metallic parts not included in
(1) Clean all metallic parts in drycleaning
the relief valve repair kit in drycleaning solvent.
solvent.
(2) Wipe parts dry with a clean, lint-free
(2) Inspect components for scratches,
cloth.
nicks, wear, or other damage.
(3) Inspect for scratches, nicks, wear,
c. Reassembly. Reassembly is the reverse of
damaged threads, or other damage.
disassembly (para 4-2a), except for the following
c. Reassembly. Reassembly is the reverse of
procedures.
disassembly ((a above) except for the following
(1) Discard used preformed packing and
procedures:
backup rings.
(1) Screw body (10, fig. 4-2) onto fitting
(2) Apply a film of pneumatic system
(5). Tighten body (5.0 to 6.6 pound-feet).
grease (MII-G-4343) to new preformed packing before
(2) Position preformed packing (8) into
assembly.
groove on piston (7); then, position piston, tapered end
(3) Refer to, paragraph 1-4b for torque
in, into body (10).
values. (4) Test and record in accordance with TB 742-
(3) Center the ball (6) on the piston (7).
93-1.
d. Test and Calibration. Test and calibrate in
accordance with TB 74293-1. Refer to para 1-4(t (a) for
operating pressures.
4-1
