TM 9-2330-251-14&P
2-5. PMCS PROCEDURES (Con't).
WARNING
Dry cleaning solvent P-D-680 is toxic and flammable. Always wear protective goggles
and gloves, and use only in a well-ventilated area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO NOT use near open flame or excessive
heat. The solvent's flash point is 100-130F (38-59C). If you become dizzy while
using cleaning solvent, immediately get fresh air and medical help. If solvent
contacts eyes, immediately wash your eyes and get medical aid.
(1) Keep It Clean. Dirt, grease, oil, and debris get in the way and may cover up a serious problem.
Clean as you work and as needed. Use dry cleaning solvent (Item 10, Appendix E) on all metal surfaces. Use
soap (Item 4, Appendix E) and water when you clean rubber or plastic.
(2) Bolts, Nuts, and Screws'. Check them all for obvious looseness, missing, bent, or broken
condition. You can't try them all with a tool, of course, but look for chipped paint, bare metal, or rust around bolt
heads. If you find one you think is loose, tighten it or report it to organizational maintenance if you can't tighten
it,
(3) Welds. Look for loose or chipped paint, rust, or gaps where parts are welded together. If you
find a bad weld, report it to organizational maintenance.
(4) Electric Wires and Connectors. Look for cracked or broken insulation, bare wires, and loose
or broken connectors. Tighten loose connectors and make sure the wires are in good condition.
NOTE
Items 5 and 6 are for M416A1 only.
(5) Hydraulic Hoses and Lines. Look for wear, damage, and signs of leaks. Ensure that clamps
and fittings are tight. Wet spots indicate leaks, of course, but a stain around a fitting or connector can also mean
a leak. If a leak comes from a loose fitting or connector, tighten it. If something is broken or worn out, report it to
organizational maintenance.
(6) Fluid Leakage. It is necessary for you to know how fluid leakage affects the status of your
trailer. The following are definitions of the types/classes of leakage you need to know to be able to determine the
status of your trailer. Learn and be familiar with them, and remember -- when in doubt, notify your supervisor!
Leakage Definitions for Operator/Crew PMCS
Seepage of fluid (as indicated by wetness or discoloration) not
Class I
great enough to form drops.
Leakage of fluid great enough to form drops, but not enough to
Class II
cause drops to drip from the item being inspected.
Leakage of fluid great enough to form drops that fall from the
Class Ill
item being inspected.
CAUTION
When operating with Class I or II leaks, continue to check fluid levels in addition to
that required in PMCS. Parts without fluid will stop working or may be damaged.
(a) Equipment operation is allowed with minor leakage (Class I or ll). The fluid level in an
item/system affected by such leakage must be checked more frequently than required in
PMCS. When in doubt, notify your supervisor.
(b) IMMEDIATELY report Class Ill leaks to organizational maintenance.
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