Hoses and fluid lines

TM 10-3930-644-14&P

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 - Hoses and fluid lines: Look for wear, damage, and leaks, and make sure clamps and fittings are tight. Wet spots shot

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.

10. It is necessary for you to know how fluid leakage affects the status of your vehicle. The following are definitions of the

types/classes of leakage an operator or crew member needs to know to be able to determine the status of his/her vehicle.

Learn, then be familiar with them and REMEMBER - WHEN IN DOUBT, NOTIFY YOUR SUPERVISOR!

Leakage Definitions for Crew/Operator PMCS

Class I

Seepage of fluid (as indicated by wetness or dis-

coloration) not great enough to form drops.

Class II

Leakage of fluid great enough to form drops but not

enough to cause drops to drip 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, CONSIDERATION 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

REPORTED

YOUR

SUPERVISOR

ORGANIZATIONAL.