TM 9-4110-256-14
c. Special Information Paragraphs.
(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 738-750.
This will result in more definitive actions be taken to prevent future occurrences.
(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.
(a) Class I is defined as seepage of fluid (as indicated by wetness or discoloration) but not great enough
to form drops.
(b) 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.
(c) Class III is defined as leakage of fluid great enough to form drops that fall from item being
checked/inspected.
INITIAL SETUP
Tools:
Materials/Parts:
Fin Comb
Wiping Rag
3, Section III, Appendix B
3, Appendix E
Grease Gun
Detergent
1, Section III, Appendix B
4, Appendix E
Scrub Brush
General Purpose Lubricating Oil
1, Section III, Appendix B
5, Appendix E
Multipurpose Grease
6, Appendix E
Personnel Required:
General Safety Instructions:
2
WARNING
High voltage and exposed rotating
parts
are
contained
in
the
refrigeration unit. Personal injury
can result if power is connected.
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