TM 5-4310-387-14
6-10. Second Stage Cylinder.
This task covers:
Replace
INITIAL SETUP
Tools
Materials/Parts
General Mechanic's Tool Kit (NSN 5180-00-177-7033)
Bags, Plastic (Item 3, Appendix E)
Ring Compressor (NSN 5120-00-250-6055)
Tape, Pressure Sensitive (Item 22, Appendix E)
Pliers, Retaining Ring (NSN 5210-00-789-0492)
Equipment Condition
Materials/Parts
Second stage valve head assembly removed
Gasket
(para. 5-23).
Retaining Rings
Lubricating Oil (Item 17, Appendix D)
References
Cloth, Lint Free (Item 22, Appendix E)
Bands, Rubber (Item 4, Appendix E)
Cleaning Procedures, Chapter 4, Section VI.
Appendix F Torque Values.
Replace. (figure 6-4)
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
Chapter 4, Section VI of this manual. 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 four nuts (1) and washers (2).
(2)
Remove cylinder (3) and gasket (4). Discard gasket (4).
(3)
Ensure all gasket surfaces are clean and old gasket material is removed.
(4)
Rotate fanwheel (5) until piston (6) is at its highest point and wedge a piece of wood in fanwheel (5) to
prevent it from moving.
(5)
Remove retaining ring (7) and remove wrist pin (8) and piston (6). Discard retaining ring (7).
(6)
Place ring compressor on piston (6).
6-18
