O2K Bottles and Manifold

Figure 4-35. Speakers, I/L and O/L, Replace

Figure 4-36. 02 K Bottles and Manifold, Replace.

TM-5-4220-227-14 MK12 Surface Supported Diving System (SSDS) (NSN 4220-01-097-5674) Manual
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TM 5-4220-227-14 4-49. O2K Bottles and Manifold This task covers: Replace INITIAL SETUP: Tools Equipment Equipment General Mechanic's Tool Kit Chamber shut down (para. 2-15). (NSN 5180-00-177-7033) Materials/Parts Band, Rubber (Item 4, Appendix E) Bags, Plastic (Item 3, Appendix E) Tape, Teflon (Item 21, Appendix E) Replace. (figure 4-36) WARNING To prevent the spread of disease, serious injury and/or death, oxygen breathing systems must be maintained hygienically clean and free from dust, dirt, and all hydrocarbon contamination. Refer to oxygen system prework procedures para. 4-10 to avoid violating this warning. NOTE Ensure system is depressurized prior to beginning this task. (1) Close six valves (1) on the six 02 bottles (2). (2) Open ten valves (3) on manifold (4) and vent the manifold. (3) Remove manifold (4) from chamber (5) by removing fitting (6) from chamber. WARNING Leave 1 1/2 threads exposed on fitting when applying teflon tape. This will ensure that no teflon tape will hang down inside the air system. Teflon tape should be wrapped in such a manner that when the fitting is tightened the tape will not loosen. Failure to wrap teflon tape correctly may result in contamination or blockage of the air system and subsequent possible injury or death to the diver. (4) Apply teflon tape to all pipe threads. (5) Install fitting (6) of manifold (4) on chamber (5). (6) Close ten valves (3) on manifold (4). (7) Open six valves (1) on the six 02 bottles (2). 4-82

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