TM5-4220-231-14&P
NOTE
Lubricate threads
and sliding contact surfaces
before reassembly
with halocarbon
grease (Item 13, Appendix D).
a.
Disassemb!y
Instructions
(1)
Remove nut (2), lock washer (3), and handle (4) from stem (13).
(2)
Remove panel nut (6) from bonnet (9).
(3)
Remove gland nut (5) from bonnet (9).
(4)
Remove retainer (7) and packing (8) from bonnet (9). Cut and discard packing (8).
(5)
Remove bonnet (9) from valve body (18). Bonnet is attached
in valve body by left-hand threads.
(6)
Remove, cut, and discard backup ring (10) and O-ring (11) from bonnet (9).
(7)
Remove, cut, and discard O-ring (17). which fits in the valve body (18) and seat plate (16).
(8)
Remove seat plate (16) from bonnet (9).
(9)
Remove seat (15), spring (14). stem (13), and spacer (12) from bonnet (9).
b.
Reassembly
Instructions
(1)
Install spacer (12), stem (13), spring (14), and seat (15) in bonnet (9).
(2)
Install seat plate (16) in bonnet (9).
(3)
Lubricate O-ring (11) with silicone compound
(Item 9, Appendix D), and install now backup ring
(10) and new O-ring (11) on bonnet (9).
(4)
LubricateO-ringwithsiliconecompound(Item
9, AppendixD)and installnewO-ring(17)invalve
body (18).
(5)
Install bonnet (9) in valve body (18).
Bonnet is secured
in valve body by left-hand threads.
(6)
Install new packing (8) and retainer (7) over exposed
end of stem (13) into bonnet (9).
(7)
Install panel nut (6) on bonnet (9).
(8)
Install gland nut (5) over exposed
end of stem (13) on bonnet (9).
(9)
Install handle (4), lock washer (3), and nut (2) on end of stem (13).
(10) Conduct
operational
tests to ensure
proper function of the stop check globe valve.
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