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(18) Apply Teflon tape to elbow
Figure 5-33.  4th Stage Valve Head Assembly, Replace.

TM-5-4310-386-14 Compressor Reciprocating Air: Electric Motor Driven & CFM 175 PSI C & H Model 20-918 Manual
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TM 5-4310-386-14 5-23.  4th Stage Valve Head Assembly. This task covers: a. Replace b. Repair INITIAL SETUP Tools Materials/Parts (Cont) General Mechanic's Tool Kit Detergent, Nonionic (Item 8, Appendix E) (NSN 5180-00-177-7033) Distilled Water (Item 9, Appendix E) Materials/Parts Equipment Condition 4th Stage Valve Head Assembly Compressor unit shut down (para.  2-13). Tape, Teflon (Item 26, Appendix E) Tape (Item 25, Appendix E) Reference Bands, Rubber (Item 4, Appendix E) Bags, Plastic (Item 3, Appendix E) Cleaning Procedures, Chapter 4, Section VII. Refer to Appendix F for torque values. a.  Replace.  (figure 5-33) 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 Chapter 4, Section  VII  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) Loosen two fitting nuts (1) and disconnect line (2) and tee (3). (2) Remove electrical connector (4) from fitting (5). (3) Remove six allen screws (6) and remove valve head (7) from cylinder (8). (4) Install valve head (7) and secure with six allen screws (6). (5) Install electrical connector (4) on fitting (5). (6) Install tee (3) and line (2) and tighten fitting nuts (1). 5-102







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