TM10-3930-660-20 (2) (3) (4) (5) 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 bolt, nut, or screw that you find loose. 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. Electric wires and connectors: Look for cracked or broken insulation, bare wires and loose or broken connectors. Tighten loose connections and make sure wires are in good condition. Hoses and fluid lines: Look for wear, damage and leaks. Make sure clamps and fittings are tight. Wet spots show leaks, or course, but a stain around a fitting or connector can mean a leak. If a leak comes from a loose fitting or connector, tighten the fitting or connector. If something is broken or worn out, either correct it or report it to Direct Support Maintenance (see Maintenance Allocation Chart, Appendix B). 2-8. LEAKAGE DEFINITIONS FOR UNIT PMCS 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 UNIT PMCS Class  I Class II Class III 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 the item being checked/inspected. 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 11). Of course, consideration must be given to the fluid capacity in the item/system being checked/inspected. When operating with Class I or II leaks, continue to check fluid levels as required on your PMCS. 2-4