TM 5-4220-227-14
5-12. Chamber Instrument Panel and Hood Assembly.
This task covers:
a.
Replace
INITIAL SETUP
Tools
Equipment Condition
General Mechanic's Tool Kit
Chamber shut down (para. 2-15).
(NSN 5180-00-177-7033)
Depth gages removed (para. 5-46).
Oxygen pressure gages removed (para. 5-30).
Materials/Parts
Pressure regulator removed (para. 5-31).
Back pressure regulator removed (para. 5-32).
Chamber Control Console (CCC)
Shutoff valves removed (para.
5-33).
Enclosure
Isolator valves removed (para. 5-34).
Fluorescent light assembly removed (para. 4-41).
Personnel Required
External electrical power disconnected (para.
4-36).
Two
Replace. (figure 5-9)
(1)
Unlatch two latches (1), open hood assembly door (2) and install two supports (3) and pins (4).
(2)
Remove six nuts (5), lockwashers (6) and bolts (7).
(3)
Remove two pins (4) and support (3) and remove hood assembly door (2).
(4)
Drill out rivets (8) securing warning (9) and flow chart (10) data plates from hood assembly door (2).
(5)
Remove two nuts (11), lockwashers (12) and screws (13).
(6)
Remove four nuts (14), lockwashers (15) and screws (16) and remove angle (17) and manifold tray (18)
CAUTION
Ensure that personnel are on hand to hold chamber instrument panel when attaching hardware is
removed.
(7)
Remove four nuts (19), washers (20) and screws (21) that secures chamber instrument panel (22) to hood
assembly frame (23).
5-22
