TM 9-2320-211-10-2
WARNING
Dry cleaning solvent, SD-2, used to clean parts
is potentially dangerous to personnel and property.
Do not use near open flame or excessive heat.
Flash point of solvent is 100 F.
b. Bolts, Nuts, and Screws. Check them all for obvious looseness, missing,
bent, or broken condition. You can't try them all with a tool, of course, but look
for chipped paint, bare metal, or rust around bolt heads. If you find one you think
is loose, tighten it, or report it to Organizational Maintenance.
Welds. Look for loose or chipped paint, rust, or gaps where parts are
c.
welded together. If you find a bad weld, 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 the
wires are in good shape.
e. Hydraulic Lines and Fittings. Look for wear, damage, leaks, and make sure
clamps and fittings are tight. Wet spots show leaks, of course, but 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 Organizational Maintenance.
1-3. FLUID LEAKAGE. It is necessary for you to know how fluid leakage affects the
status of the hydraulic system. The following are definitions of the types/classes of
leakage you need to know to be able to determine the status of your vehicle. Learn,
then be familiar with them and REMEMBER -- WHEN IN DOUBT, NOTIFY YOUR
SUPERVISOR!
CAUTION
Equipment operation is allowable with minor
leakages (Class I or II). Of course, considera-
tion must be given to the fluid capacity in the
item/system being checked /inspected. When in
doubt, notify your supervisor.
When operating with Class I or II leaks, continue
to check fluid levels as required in your PMCS.
Class III leaks should be reported to your
supervisor or to Organizational Maintenance.
Seepage of fluid (as indicated by wetness or discoloration)
Class I.
a.
not great enough to form drops.
Class II. Leakage of fluid great enough to form drops but not enough
b.
to cause drops to drip from item being checked/inspected.
Class III. Leakage of fluid great enough to form drops that fall from the
c.
item being checked/inspected.
