3-9. Special lnstructions. Preventive maintenance is not limited to performing the checks and services
listed in the PMCS table. Covering unused receptacles, stowing unused equipment and other routine procedures
such as equipment inventory, cleaning components, and touch-up painting are not listed in the PMCS table.
These are things you should do any time you see they need to be done. If a routine check is listed in the PMCS
table it is because other operators have reported problems with this item. Take along tools and cleaning cloths
needed to perform the required checks and services. Use the information in the following paragraphs to help you
identify problems at any time.
a. Routine Inspections. Use the following information to help identify potential problems before and during
checks and services.
Drycleaning solvent PD-680 is both toxic and flammable. Wear safety goggles and
gloves and use in a well-ventilated area. Avoid prolonged breathing of vapors and avoid
skin contact. Do not use near open flame or excessive heat. Flash point of solvent is
100°F to 138°F (38°C to 59°C). If you become dizzy while using PD-680, get fresh air
immediately and get medical aid. If PD-680 contacts eyes, flush with water and get
medical aid immediately.
Keep it clean. Dirt, grease, and oil get in the way and may cover up a serious problem. Use drycleaning
solvent PD-680, to clean metal surfaces. Use soap and water to clean rubber or plastic parts and
Bolts, nuts, and screws. Check them all to make sure theyre not loose, missing, bent, or broken. Dont
try to check them all with a tool, but look for chipped paint, bare metal, or rust around bolt heads. If you
find one loose, tighten it or report it to unit maintenance.
Welds. Look for loose or chipped paint, rust, or gaps where parts are welded together. If a broken weld
is found, report it to higher level of maintenance.
Electrical wires connectors, terminals and receptacles. Look for cracked or broken insulation, bare
wires, and loose or broken connectors. Tighten loose connectors and make sure the wires are in good
condition. Examine terminals and receptacles for serviceability.
Hoses and fluid lines. Look for wear, damage, and leaks. Make sure clamps and fittings are tight. Wet
spots and stains around a fitting or connector can mean a leak. If a leak comes from a loose connector,
tighten it. If something is broken or worn out, report it to unit maintenance.