GENERAL PMCS PROCEDURES - Continued
Before performing preventive maintenance, read all the checks required for the applicable interval and prepare all
tools needed to make all checks. Have several clean rags (Volume 2, WP 0288, Table 1, Item 60) handy. Perform
ALL inspections at the applicable interval.
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 detergent (Volume 2, WP 0288, Table 1, Item 17) and water when you clean.
Rust and Corrosion. Check metal parts for rust and corrosion. If any bare metal or corrosion exists, clean and apply
a light coat of lubricating oil (Volume 2, WP 0288, Table 1, Item 51, 52, 53). Report it to your supervisor.
Bolts, Nuts, and Screws. Check bolts, nuts, and screws 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.
Welds. Look for loose or chipped paint, rust, or gaps where parts are welded together. If you find a bad weld, report
it to your supervisor.
Electric Wires and Connectors. Look for cracked or broken insulation, bare wires, and loose or broken connectors.
Tighten loose connectors and ensure that the wires are in good condition.
Hydraulic Hoses and Lines. Look for wear, damage, and signs of leaks. Ensure that clamps and fittings are tight.
Wet spots indicate leaks, but a stain around a fitting or connector can also mean a leak. If a leak come from a loose
fitting or connector, tighten it. If something is broken or worn out, correct if it authorized by the Maintenance Allocation
Chart (Volume 2, WP 0287). If not authorized, notify your supervisor.
It is necessary for you to know how fluid leakage affects the status of the roller. Following are types/classes of leakage
you need to know to be able to determine the status of the roller. Learn these leakage definitions and remember -
when in doubt, notify your supervisor. Equipment operation is allowed with minor leakage (Class I or II). Consideration
must be given to fluid capacity in the item/system being checked/inspected. When in doubt, notify your supervisor.
When operating with Class I or II leaks, continue to check fluid levels as required in the PMCS. Class III leaks should
be reported immediately to your supervisor.
Table 1. Leakage Definitions for 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 being checked/
Leakage of fluid great enough to form drops that fall from
item being checked/inspected.