TM 5-4220-227-14
5-45. Ball Valves 1 1/4 Inch (Air Exhaust Manifold) (Cont).
(6)
Install valve (7) and pipe (6) on manifold (4).
(7)
Install valve (3) and pipe (2) on manifold (4).
b. Repair. (figure 5-70).
NOTE
There are six ball valves. The repair of each valve is the same.
(1)
Remove ball valve (para. a. above).
(2)
Remove four nuts (1), bolts (2), connector (3) and (4), and indicator tag (5) from valve body (6).
(3)
Remove and discard two teflon seats (7).
(4)
Remove ball (8) from valve body (6).
(5)
Remove lever nut (9) and handle (10) from valve body (6).
(6)
Remove gland nut (11) from stem (12) and remove stem (12).
(7)
Remove and discard two teflon packings (13).
(8)
Clean all components using nonionic detergent cleaner and rinse with clean distilled water.
(9)
Inspect all items and replace all items that are bent, cracked, worn, or otherwise damaged.
(10)
Place one teflon packing (13) onto stem (12) and install stem (12) into valve body (6).
(11)
Install second teflon packing (13) in valve body (6).
(12)
Install gland nut (11) on stem (12).
(13)
Install handle (10) onto stem (12) and secure with lever nut (9).
(14)
Install ball (8) and two teflon seats (7) in body valve (6).
(15)
Install connectors (3) and (4) and indicator tag (5) and secure with four bolts (2) and nuts (1).
(16)
Install ball valve (para. a. above).
FOLLOW-ON MAINTENANCE
Install air exhaust manifold (para. 5-44).
5-158
