TM 5-4310-386-14
6-6.
General. This section contains general support maintenance procedures as authorized by the maintenance
allocation chart in Appendix B of this manual. Ensure all tools and parts are clean and free of oil, grease, rust, or other
contaminants when performing maintenance on air compressor.
6-7.
1st Stage Cylinder and Piston
This task covers:
a.
Replace
b.
Repair
INITIAL SETUP
Tools
Materials/Parts (Cont)
General Mechanic's Tool Kit
Water, Distilled (Item 9, Appendix E)
(NSN 5180-00-177-7033)
Detergent, Nonionic (Item 8, Appendix E)
Caliper Set, Micrometer (NSN 5210-00-554-7134)
Lubricating Oil (Item 15, Appendix E)
Circlip Pliers (NSN 5120-00-789-0492)
Piston Ring Removal Tool (PN N4453)
Equipment Condition
Piston Ring Clamps (PN 57495-645)
Compressor unit shutdown (para. 2-13).
Materials/Parts
1st stage compressor valve head assembly removed
(para. 5-21)
Cylinder, Compressor
Piston, 1 st Stage
References
Gasket, Crankcase
Bands, Rubber (Item 4, Appendix E)
Refer to Appendix F for torque values.
Bags, Plastic (Item 3, Appendix E)
Cleaning Procedures, Chapter 4, Section VII.
a.
Replace. (figure 6-1)
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 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.
6-6
