Quantcast LEAKAGE DEFINITIONS - TM-9-2330-330-14-P0179

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TM 9-2330-330-14&P
OPERATOR/CREW PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)--Continued
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Interval. This column tells you when to do a certain check or service. Special intervals will also be
specified (e.g., every 100 hours) when the component requires service more frequently than
semiannually or annually.
Item To Be Inspected. This column tells you what item is to be inspected and how to do the required
checks and services. Carefully follow these instructions. If you do not have the tools, or if the procedure
tells you to, have Organizational maintenance do the work.
Procedure. This column tells you how to do the required checks and services and which crewmember is
responsible for each check or service. Carefully follow these instructions. If you do not have the tools, or if
the procedure tells you to, have Organizational maintenance do the work.
Not Fully Mission Capable If. Information in this column tells you what faults will keep the equipment
from being capable of performing its mission. If PMCS reveals any of the faults listed in this column, do
not operate the equipment. Follow standard procedure for maintaining the equipment or reporting
equipment failure.
LEAKAGE DEFINITIONS
It is important to know how fluid leakage affects the status of the semitrailer. The following are
types/classes of leakage an operator must know to determine whether the semitrailer is mission-capable.
Learn these leakage definitions. When in doubt, notify your supervisor.
Class I
Seepage of fluid (as indicated by wetness or discoloration) not great enough to form drops.
Class II
Leakage great enough to form drops, but not great enough to cause drops to drip from item
being inspected.
Class III Leakage of fluid great enough to form drops that fall from the time being inspected.
WARNING
The semitrailer must not be operated if there are any fuel leaks from semitrailer
tank or from engine. Report any fuel leaks to your supervisor or Organizational
maintenance. Failure to do so will result in fire hazard, which can cause severe
injury or death to personnel.
CAUTION
When operating engine with Class I or II oil leaks, continue to check fluid levels in
addition to that required in PMCS. Parts without fluid will stop working or may be
damaged.
Equipment operation is allowed with minor (Class I or II) leakage. Fluid levels in an item/system affected
with such leakage must be checked more frequently than required in PMCS. When in doubt, notify your
supervisor.
Report Class III oil leaks immediately to your supervisor or Organizational maintenance.
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