TM 5-1730-245-14
(5) Electric Wires and Connectors. Look for cracked, frayed, or broken insulation, bare wires, and loose
or broken connectors. Tighten loose connectors. Report any damaged wires to your supervisor.
(6) Hoses and Fluid Lines. Look for wear, cuts, and leaks and make sure clamps and fittings are tight.
Wet spots show leaks, but a stain around a fitting or connector can also 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 your
supervisor.
h. When you check for "operating condition" look at the component to see if it's serviceable.
NOTE
If the hydraulic power supply must be kept In continuous operation, do only
the procedures that can be done without disturbing operation. Make
complete checks and services when the machine is shut down.
2.4. LEAKAGE DEFINITIONS FOR OPERATOR PMCS.
2.4.1 Leakage Definitions for Operator PMCS. It is necessary for you to know how fluid leakage affects the
status of the hydraulic power supply. Following are types/classes of leakage an operator needs to know to be
able to determine the status. Learn these leakage definitions and remember - when in doubt, notify your
supervisor
CAUTION
Equipment operation is allowable with minor leakage (Class I or II). Of
course, consideration must be given to 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 immediately to your supervisor.
a. Class I - Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
b. Class II - Leakage of fluid great enough to form drops but not enough to cause drops to drip from item
being checked/inspected.
c. Class III - Leakage of fluid great enough to form drops that fall from item being checked/inspected.
Figure 2-3. Engine Oil Dipstick.
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