TM 9-2330-373-14 & P
2-8. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (cont)
(1) Keep it clean: Dirt, grease, oil and debris only get in the way and may cover up a serious problem. Clean
as you work and as needed. Use cleaning solvent (item 3, appendix E) on all metal surfaces. Use soap and water when
you clean rubber or plastic material.
(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, 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 gap where parts are welded together. If you find a bad
weld, report it to organizational maintenance.
(4) Electric wires and connectors: Look for cracked, frayed or broken insulation, bare wires, and loose
connectors. Tighten all loose wires and connectors as required.
(5) Hoses and fluid lines: Look for wear, damage and leaks. Make sure clamps and fittings are tight. Wet
spots show leaks, of course, but a stain around a fitting or connector can 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.
j. It is necessary for you to know how fluid leakage affects the status of your vehicle. The following are definitions of
the types/classes of leakage you need to know to be able to determine the status of your vehicle. Learn, then be familiar
with them and REMEMBER WHEN IN DOUBT, NOTIFY YOUR SUPERVISOR.
Leakage Definition for Crew/Operator PMCS
Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
Leakage of fluid great enough to form drops but not enough to cause drops to drip from item
Leakage of fluid great enough to form drops that fall from the item being checked/inspected.
Equipment operation is allowable with minor leakages (Class I or II). Of course,
consideration must be given to the fluid capacity in the item/system being
checked/inspected. When in doubt, notify your supervisor.
When operating with Class I or Class II leaks, continue to check fluid levels as
required in your PMCS. Class III leaks should be reported to your supervisor or