TM 5-3805-261-20
ORGANIZATIONAL PREVENTIVE MAINTENANCE CHECKS AND SERVICES.
4-3.
PMCS PROCEDURES.
(a)
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 dry cleaning solvent P-D-680 to clean metal surfaces. Use soap and water when
you clean rubber or plastic material.
(b)
Bolts, nuts and screws: Check that they are not loose, missing, bent or broken. You can’t try them
all with a tool, of course, but look for chipped paint, bare metal or rust around bolt heads. Tighten any that you find loose.
(c)
Welds: Look for loose or chipped paint, rust or gaps where parts are welded together. If you find a
bad weld, report it to Direct Support.
(d)
Electric wires and connectors: Look for cracked or broken insulation, bare wires and loose or broken
connectors. Tighten loose connections and make sure the wires are in good condition.
(e)
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 also mean a leak. If a leak comes from a
loose fitting or connector, tighten it. If something is broken or worn out, either correct it or report it to Direct Support.
Refer to MAC Chart.
(5)
It is necessary for you to know how fluid leaks affect the status of your equipment. The following are
definitions of the types/classes of leakage you need to know to be able to determine the status of your equipment. Learn
and be familiar with them and REMEMBER, when in doubt, notify your supervisor.
LEAKAGE DEFINITIONS FOR ORGANIZATIONAL PMCS
Class I
Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
Class II
Leakage of fluid great enough to form drops but not enough to cause drops to drip from the
item being checked/inspected.
Class III
Leakage of fluid great enough to form drops that fall from the item being checked/inspected.
4-3
