TM 10-4520-262-12&P
0010 00
0010 00-2
SPECIAL INSTRUCTIONS
Perform “Weekly”, as well as “Before”, operations PMCS if:
1. The equipment has not been operated since the last weekly check, or has been stored for more
than a week.
2. The equipment is being operated for the first time.
3. The equipment has been in longterm storage.
LEAKAGE DEFINITION
NOTE
Equipment operation is allowable with minor leakage (Class I or II). Of course, you must
consider 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 in your PMCS. When in
doubt, notify your supervisor.
NOTE
Class lI leaks should be reported to your supervisor.
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 item
being checked/inspected.
Class Ill. Leakage of fluid great enough to form drops that fall from the item being checked/inspected.
GENERAL SERVICE PROCEDURES
As you perform your PMCS, keep in mind the following:
Bolts, Nuts, and Screws. Check them all for obvious looseness and missing, bent, or broken condition.
You cannot try them all with a tool, of course, but look for chipped paint, bare metal, or rust around bolt
heads. If you find a problem, report it to your supervisor.
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.
Electrical Wires and Connections. 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. If you find
a bad wire or connector, report it to your supervisor.
Fuel Lines and Fittings. Look for wear, damage, and leaks. Make sure clamps and fittings are tight. Wet
spots show leaks, but a stain around a fitting or connector can mean a leak. If a leak comes from a loose
fitting or connector, or if something is broken or worn out, report it to your supervisor.
