The valve illustrated
in Figure 5-4 is one of four possible
differ by handle color or by
body had (10 or 16), which may be male or female threads.
on valve use in the SDASS.
of the valve configuration,
each valve is identical for disassembly
by the procedures
Perform in a clean environment
Clean metal parts with nonionic detergent
solution (NID) (Item 17,
D). Wipe with clean rags (Item 15, Appendix
D) to get
level of cleanliness.
and sliding contact
(Item 13, Appendix
Using alien wrench,
set screw (3) from handle
(2), and remove
handle from end of stem
Remove hex nut (4) from body had (10).
Using allen wrench,
remove both socket head bofts (17) and hex nuts (18) from the valve assembly.
Remove body had (16) from body had (10).
cut, and discard end piece backup ring (15), seat quad ring (11). seat (12), and end
Rotate stem (6) and remove stem ball (13) through opening on side of body halt (10).
Remove stem (6) through opening in body had (10).
cut, and discard both stem backup
rings (7), stem O-ring (8) and the stem bearing (9)
from the stem (6).
cut, and discard seat quad ring (11) and seat (12) from body half (10).
cut, and discard O-ring (19) from end fittings on each body had (10, 16).
cut, and discard
stem bearing (5) from body had (10).