TM 5-5420-234-14&P
2-5.
SPECIFIC PMCS PROCEDURES (continued).
(2)
Interval. This column of your PMCS table tells you when to do the check or service:
Perform Before PMCS just before operating the vehicle.
Perform During PMCS while operating the vehicle.
Perform After PMCS immediately following operation of the vehicle.
(3)
Item To Check/Service. This column names the item to be checked or serviced.
(4)
Procedure. This column tells you how to do the required checks and services. Follow these instructions
carefully. If tools are not available or if the procedure says to, have Unit maintenance do the work.
NOTE
The term "mission capable" refers to equipment being on hand and able to
perform its combat mission (refer to AR 700-138).
(5)
Not Fully Mission Capable If: This column explains when and why your equipment cannot be used. If
PMCS reveals faults listed in this column, do not operate the equipment. Follow standard operating
procedures for maintaining the equipment or reporting equipment failures.
LEAKAGE DEFINITIONS.
a. It is important to know how fluid leakage affects the status of the CBT. The following are types/classes of
leakage an operator must know to determine if the CBT 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 of fluid great enough to form drops, but not great enough to cause drops to drip
from the item being inspected.
Class III Leakage of fluid great enough to form drops that fall from the item being inspected.
CAUTION
Equipment operation is allowable with minor leakages (Class I or Class II).
Of course, you must consider the fluid capacity in the item/system being
checked/inspected. When in doubt, notify your supervisor. When operating
with Class I or Class II leaks, continue to check fluid levels as required in
your PMCS.
Class III leaks should be reported immediately to your supervisor or Unit
maintenance.
b.
Equipment operation is allowed with minor (Class I or Class 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.
c. Report Class III leaks IMMEDIATELY to your supervisor or Unit maintenance.
