5-25. Third Stage Valve Head Assembly.

Figure 5-34. Third Stage Valve Head Assembly, Replace.

TM-5-4310-387-14 Compressor Unit Diesel Engine Driven 20 CFM 3200 PSI Model K-20-D Manual
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TM 5-4310-387-14 5-25. Third Stage Valve Head Assembly. This task covers: a. Replace b. Repair INITIAL SETUP Tools Equipment Condition General Mechanic's Tools Kit (NSN 5180-00-177-7033) Compressor unit shutdown and depressurized Torque Wrench (NSN 5120-00-247-2540) (para. 2-12). TSP Ultrasonic Cleaner (NSN 4940-00-164-8997) Materials/Parts References Preformed Packing Cleaning Procedures, Chapter 4, Section VI. Valve Assembly Appendix F Torque Values. Cloth, Lint Free (Item 8, Appendix E) Bands, Rubber (Item 4, Appendix E) Tape, Teflon (Item 23, Appendix E) Bags, Plastic (Item 3, Appendix E) Tape, Pressure Sensitive (Item 22, Appendix E) a. Replace. (figure 5-34) 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) Loosen two connector nuts (1) securing line (2). (2) Loosen connector nuts (3). (3) Remove six nuts (4) and washers (5) and remove valve assembly (6), cooling ring (7), and preformed packing (8). Discard preformed packing (8). (4) Remove fittings (9) and (10). 5-72

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