TM 5-4220-225-14
4-19.
Air Supply Adapter.
This task covers:
Replace
INITIAL SETUP
Tools
Materials/Parts
Pliers, Inside Snap Ring (Item 45, Appendix B)
RTV Sealant (Item 1, Appendix E)
9/64-inch Hex Wrench (Item 22, Appendix B)
Halocarbon Grease (Item 10, Appendix E)
3/4-inch Box and Open End Wrench (Item 40,
Talcum Powder (Item 19, Appendix E)
Appendix B)
13/16 -inch Box and Open End Wrench (Item 8,
Reference
Appendix B)
0-50 in.-lbs Torque Wrench (Item 14, Appendix B)
Para. 4-11, General
Insert, Hex (Item 51, Appendix B)
MK12 Test Set (Item 44, Appendix B)
Replace. (figure 4-12)
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 air supply adapter cap (1) and gasket (2).
(2)
Remove helmet liner (3).
(3)
Loosen the tubing connector nut (4) at the air adapter (5).
(4)
Remove the three screws (6) and remove the air supply adapter (5), preformed packing (7), and preformed
packing (8).
(5)
Remove connector (9) and preformed packing (10).
(6)
Remove retaining ring (11), filter screw (12), one way valve (13), and preformed packing (14).
4-32
