LEAKAGE DEFINITIONS FOR OPERATOR PMCS.

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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