TM 5-4310-379-14
4-28.
Compressor Dual Control Check Valve Assembly.
This task covers:
a.
Inspect
b.
Replace
INITIAL SETUP:
Tools
Materials/Parts (Cont)
General Mechanic's Tool Kit
(NSN 5180-00-177-7033)
Bags, Plastic (Item 4, Appendix D)
TPS Ultrasonic Cleaner w/Heater
(Item x, Appendix B)
Tape, Teflon (Item 25, Appendix D)
Water, Distilled (Item 11, Appendix D)
Materials/Parts
Equipment Condition
Dual Control Check Valve Assembly
Tape (Item 24, Appendix D)
Lines and fittings removed (para. 4-25).
Bands, Rubber (Item 5, Appendix D)
a.
Inspect.
WARNING
Cleanliness is imperative in maintaining and handling diving air 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)
Clean dual control check valve assembly using TSP ultrasonic cleaner w/heater following cleaning instructions in
Chapter 3, Section VII.
(2)
Inspect dual control check valve assembly for cracks, stripped threads or other signs of damage.
(3)
Replace dual control check valve assembly if cracked or otherwise damaged.
b.
Replace. (figure 4-39)
(1)
Remove reducing bushing (1) and straight tube connector (2) from dual control check valve assembly (3).
(2)
Remove dual control check valve assembly (3) from VD pilot valve (4).
Change 1
4-94
