TM 5-4220-225-14
4-24. Ambient Exhaust Valve.
This task covers:
a.
Replace
b.
Repair
INITIAL SETUP:
Tools
Materials/Parts
0-50 in.-lbs Torque Wrench (Item 14, Appendix B)
Halocarbon Grease (Item 10, Appendix E)
Socket Wrench Adapter (Item 41, Appendix B)
Insert, Hex (Item 54, Appendix B)
Reference
5/32-inch Hex Wrench (Item 23, Appendix B)
MK12 Test Set (Item 44, Appendix B)
Para. 4-11 General
a. Replace. (figure 4-18)
WARNING
Cleanliness is imperative in maintaining and handling diving system components. All tools
and parts must be kept free of oil, grease, rust, or other contamination in accordance with
accepted Army diving cleaning procedures. Foreign substances within an assembly could
result in equipment failure and possible injury or death to personnel.
Ensure that all air lines and components removed or openings into the air system that
provides breathing air are covered with a plastic bag and secured with a rubber band or
taped shut. Small components should be stored in a plastic bag and sealed. Failure to do
so will cause air system to become contaminated and could result in injury or death to the
diver.
(1) Remove two screws (1) and lockwashers (2) and remove valve cover (3).
(2) Remove two screws (4) and lockwashers (5) and remove valve body (6) and preformed packing (7).
NOTE
Use only enough lubricant to coat preformed packing without excess.
(3) Lightly lubricate valve body new preformed packing (7) and install.
(4) Install valve body (6) and secure with two screws (4) and lockwashers (5). Torque screws to 15-20 lb-in. (1.7-2.3
Nm).
(5) Install ambient valve cover (3) and secure with two screws (1) and lockwashers (2). Torque screws to 15-20 lb-
in. (1.7-2.3 Nm).
4-52
