ARMY TM 9-6115-670-14&P
4-6
f. Inspect hoses and fluid lines. Look for wear, damage, and leaks. Make sure that clamps and
fittings are tight. Wet spots and stains around a fitting or connector can mean a leak. If a leak
comes from a loose connector, or if something is broken or worn out, report it to the next higher
level of maintenance.
4.7.4. Leakage Definitions. You must know how fluid leakage affects the status of your equipment. The
following are definitions of the types/classes of leakage you need to know to be able to determine the status
of your equipment. Learn and be familiar with them. When in doubt, notify your supervisor.
Leakage
Leakage Definition
Class
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 drip
from the item being checked/inspected.
Class III
Leakage of fluid great enough to form drops that drip from the item being
checked/inspected.
4.7.5 Operation of Generator Set with Minor Leaks.
a. Consider the equipment's capacity for the fluid that is leaking. If the capacity is small, the fluid level
may soon become too low for continued operation. If in doubt, notify your supervisor.
b. Check the fluid level more often than required in the PMCS table. Add fluid as needed.
4.7.6. Corrosion Prevention and Control (CPC). CPC of Army material is of continuing concern. It is
important that any corrosion problems with the equipment be reported so that the problem can be corrected
and improvements can be made to prevent the problem in future items. While corrosion is typically
associated with rusting of metals, it can also include deterioration of other materials, such as rubber and
plastic. Unusual cracking, softening, swelling, or breaking of these materials may be a corrosion problem. If
a corrosion problem is identified, it can be reported using Standard Form 368, Product Quality Deficiency
Report. Use of key words such as "corrosion," "rust," "deterioration," or "cracking" will ensure that the
information is identified as a CPC problem. The form should be submitted to the address specified in DA
PAM 738-750.
4.7.7. Order in Which PMCS Will be Done. Figure 2-2 shows the order in which you are to perform your
PMCS. The number callouts on Figure 2-2 correspond to the numbers in the Item No. column of Table 2-2,
for "Before" PMCS.
CAUTION
Equipment operation is allowable with minor leakage
(Class I or II) of any fluid except fuel. Fluid capacity
must be considered before deciding to continue
operation of the equipment with minor leaks. When
operating with Class I or II leaks, fluid level must be
checked more often than required by the PMCS table.
Parts without fluid will stop working and/or cause
equipment damage.
