TM 9-4110-258-13
4.11.3
Special Information Paragraphs
4.11.3.1
Corrosion Prevention Control. If a corrosion problem is identified, it can be reported using Standard Form _
368, Production Quality Deficiency Report. The form should be submitted to the address specified in DA Pam 738750.
This will result in more definitive actions be taken to prevent future occurrences.
4.11.3.2
Leakage Definition for Unit PMCS. It is necessary for you to know how fluid leakage affects the status of
your refrigeration unit. Oil is carried with the refrigerant as it flows through the refrigeration system. If a leak develops in
the system, the oil will seep out and soak the copper tubing around the leak or drip and soak or puddle on the frame or
other component below the leak. If any oil or seepage is found, a refrigerant leak would be suspected.
4.11.3.2.1 Class I is defined as seepage of fluid (as indicated by wetness or discoloration) but not great enough to form
drops.
4.11.3.2.2 Class II is defined as leakage of fluid great enough to form drops but not enough to cause drops to drip from
item being checked/inspected.
4.11.3.2.3 Class III is defined as leakage of fluid great enough to form drops that fall from item being
checked/inspected.
INITIAL SETUP
Tools:
General Safety Instructions:
Fin Comb
WARNING
2, Section III, Appendix B
Materials/Parts:
High voltage and exposed rotating parts are
contained in the refrigeration unit. Personal
injury can result if power is connected.
Wiping Rag
3, Appendix E
Detergent
4, Appendix E
General Purpose Lubricating Oil
5, Appendix E
Multipurpose Grease
6, Appendix E
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