TM9-2330-207-14
2-31. OPERATOR/CREW PREVENTIVE MAINTENANCE
CHECKS AND SERVICES(Cont)
Bolts, nuts and screws: Check them all for obvious looseness, missing, bent or broken
(2)
condition. You can't try them alI 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.
Electric wires and connectors: Look for cracked or broken insulation, bare wires and
(4)
loose or broken connectors. Tighten loose connectors and make sure the wires are in
good shape.
Hoses and fluid lines: Look for wear, damage and leaks, and make sure clamps and
(5)
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.
i. 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 Definitions for Operator/Crew PMCS
Seepage of fluid (as indicated by wetness or discoloration)
Class I
not great enough to form drops.
Leakage of fluid great enough to form drops but not enough
Class II
to cause drops to drip from item being checked/inspected.
Leakage of fluid great enough to form drops that fall from
Class III
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.
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