TM 5-4220-225-14
4-23. Adjustable Exhaust Valve.
This task covers:
a.
Replace
b.
Repair
INITIAL SETUP:
Tools
Materials/Parts
0-50 in.-lbs Torque Wrench (Item 14, Appendix B)
Adjustable Exhaust Valve
Socket Wrench Adapter (Item 41, Appendix B)
Halocarbon Grease (Item 10, Appendix E)
5/32-inch Hex Wrench (Item 23, Appendix B)
1/4-inch Hex Wrench (Item 25, Appendix B)
Reference
Insert, Hex (Item 54, Appendix B)
Para. 4-11 General
a. Replace. (figure 4-16)
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) Line up cutout in handle (1) with screw (2) and remove screw (2) and lockwasher (3).
(2) Line up cutout in handle (1) with screw (4) and remove bolt (4), lockwasher (5), cover (6) with handle (1) installed
and spring (7).
(3)
Remove chin button (8).
(4) Remove poppet valve (9) and preformed packing (10).
(5) Remove two screws (11) and washers (12) and remove valve body (13) and preformed packing (14).
NOTE
Use only enough lubricant to coat preformed packings without excess.
(6) Apply a thin film of lubricant to all new preformed packings.
4-46
