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TM 9-2320-360-20-1
2-10. GENERAL MAINTENANCE PROCEDURES (CONT)
b. Bolts, Nuts, and Screws. Check bolts, nuts, and screws for obvious looseness, and missing, bent, or broken
conditions. Look for chipped paint, bare metal, or rust around bolt heads. If any part seems loose, tighten it. If any part is
broken or missing, replace it.
c. Welds. Look for loose or chipped paint, rust, or gaps where parts are welded together. If a bad weld is found,
notify your supervisor.
d. Electric Wires and Connectors. Look for cracked or broken insulation, bare wires, and loose or broken
connectors. Tighten loose connectors and ensure wires are in good shape. If a bad wire or connector is found, notify
your supervisor.
e. Hydraulic Lines and Fittings. Look for wear, damage, and leaks; ensure clamps and fittings are tight.
Wet spots show leaks. 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, repair or replace it.
f. Damage. Damage is defined as any condition that affects safety or would make the HET Tractor unserviceable for
mission requirements.
2-11. FLUID LEAKAGE
a. Leakage Definitions. Fluid leakage is classified and defined as follows:
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 fall from item
being checked/inspected.
Class III - Leakage of fluid great enough to form drops that fall from the item being checked/inspected.
CAUTION
·
Equipment operation is allowable with minor leakages (Class I or II). Of course,
you
must
consider
the
fluid
capacity
in
the
item/system
being
checked/inspected. When in doubt, notify your supervisor.
·
When operating with Class I or Class II leaks, continue to check fluid levels as
required in your PMCS.
·
Class Ill leaks should be reported to your supervisor and repaired.
2-12. PMCS TABLE
Refer to table 2-1 for unit PMCS procedures for the HET Tractor. Perform your PMCS (semiannual and annual) starting
with the left front and continuing counterclockwise around the HET Tractor.
2-6
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