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TM 10-4930-240-13
4-19. PRESSURE REGULATING VALVE ASSEMBLY REPAIR - cont.
Disassemble Strainer Refer to figure 4-9.
(10) Remove plug (1) and packing (2) from body (8).
(11) If required, remove plug (3) from body (8).
(12) Remove reducer (4) and packing (5) from body (8).
(13) Carefully pull strainer (6) from body (8).
(14) If required, remove plug (7) from reducer (4).
Disassemble Pressure Regulating Valve Refer to figure 4-10.
(15) Remove Indicator (1) from cover (3).
(16) Mark and record alinement of valve cover (3) with body (17).
WARNING
To prevent injury to personnel, remove cover slowly to release spring tension.
(17) Remove eight bolts(2).
CAUTION
To prevent damage to bearing cover or valve stem, pull cover straight up from
body.
(18) Remove valve cover (3) from body (17) If cover Is stuck, use a hammer and blunt chisel to drive
cover up off body by tapping upward around edge of cover.
NOTE
Spring cover may be stuck inside valve cover. Make sure spring cover is not lost
or missing.
(19) If required, remove spring cover (5) from valve cover (3).
(20) Remove spring (6) from top of stem (14).
CAUTION
To prevent damage to stem or seat, pull stem straight up from body.
(21) Remove assembled diaphragm (4) from body (17).
CAUTION
To prevent damage to stem, use vice that has soft brass jaws.
(22) Secure end of stem (14) (opposite end of nut (7)) in vise.
(23) Remove nut (7), diaphragm washer (8) and diaphragm (9) from stem (14).
4-30
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