Compressor Pistons, Connecting Rods, and Bearings

Figure 5-44. Compressor Intake, Discharge, and Intake Unloader, Repair.

Figure 5-45. Compressor Pistons, Connecting Rods, and Bearings, Removal

TM-5-4310-379-14 Compressor Air Reciprocating Electric Motor Driven Reciprocating Electric Motor Driven 15 CFM at 175 PSI Manual
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TM 5-4310-379-14 5-31. Compressor Pistons, Connecting Rods, and Bearings This task covers: a. Replace b. Repair INITIAL SETUP: Tools Materials/Parts (Cont) General Mechanic's Tool Kit (NSN 5180-00-177-7033) Detergent, Nonionic (Item 10, Appendix D) Caliper Set, Micrometer (NSN 5210-00-554-7134) Connecting Rod, Low Pressure Cir-Clip Pliers (NSN 5120-00-789-0492) Connecting Rod, High Pressure Ring Compressor (NSN 5120-00-223-8848) Gasket, Cylinder Torque Wrench (NSN 5120-00-554-7292) Tape (Item 24, Appendix D) TSP Ultrasonic Cleaner W/Heater (Item 35, Bands, Rubber (Item 5, Appendix D) Appendix B) Bags, Plastic (Item 4, Appendix D) Water, Distilled (Item 11, Appendix D) Materials/Parts Equipment Condition Piston, Low Pressure Piston, High Pressure Cylinder head removed (para. 5-29). a. Removal. (figure 5-45) 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. NOTE There are two pistons and connecting rods in each cylinder. Removal of each is the same. (1) Remove drain plug (1) and drain oil into suitable container. (2) Remove ten screws (2) securing handhole plate (3) on side, opposite the cylinder head being removed. (3) Remove and discard handhole plate gasket (4). (4) Turn pulley (5) as necessary to allow removal of connecting rod nuts (6), washers (7), and bolts (8). 5-140

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