T M 9 - 2 3 2 0 - 2 7 9 - 1 0 -1
PMCS Tables (Cont)
2 - 6 . G E N E R A L M A I N T E N A N C E P R O C E D U R E S .
W A R N I N G
Adhesives, solvents, and sealing compounds can burn
easily, can give off harmful vapors, and are harmful to
skin and clothing. To avoid injury or death, keep away
from open fire and use in well-ventilated area. If
adhesive, solvent, or sealing compound gets on skin or
clothing, wash immediately with soap and water.
a. Cleanliness. Dirt, grease, oil, and debris only get in the way and may
cover up a serious problem. Use dry cleaning solvent Appendix D, Item 13 on all
b. Bolts, Nuts, and Screws. Check bolts, nuts, and screws for obvious
looseness, missing, bent, or broken condition. Look for chipped paint, bare metal,
or rust around boltheads. If any part seems loose, tighten it, or report it to
c. Welds. Look for loose or chipped paint, rust, or gaps where parts are
welded together. If a bad weld is found, report it to organizational maintenance.
d. Electric Wires and Connectors. Look for cracked or broken insulation,
bare wires, and loose or broken connectors. Tighten loose connectors and make
sure wires are in good shape. If a bad wire or connector is found, report it to
e. Hydraulic Lines and Fittings. Look for wear, damage, and leaks, and
make sure clamps and fittings are tight. Wet spots show leaks, and a stain around
a fitting or connector can mean a leak. If a leak comes from a loose fitting or
connector, tighten it. If something is broken or worn out, report it to
f. Damage is defined as: Any conditions that affect safety or would render
the vehicle unserviceable for mission requirements.
2-7. FLUID LEAKAGE. It is necessary to know how fluid leakage affects the
status of fuel, oil, coolant, and the hydraulic systems. The following are
definitions of the different types/classes of leakage that determine the status of
the vehicle. Learn, then be familiar with them and REMEMBER WHEN IN
DOUBT, NOTIFY THE SUPERVISOR!
C A U T I O N
Equipment operation is allowable with minor leakage
(Class I or II). Consideration must be given to the fluid
capacity in the item/system being checked/inspected.
When in doubt, notify the 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
to the supervisor or to organizational maintenance.
a. Class I. Seepage of fluid (as indicated by wetness or discoloration) not
great enough to form drops.
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