CAUTION
TM 9-6230-210-13&P
4.10 LEAKAGE DEFINITIONS FOR UNIT PMCS.
a. General. It is necessary for you to know how leakage affects the use of your equipment. Following are
types/classesof leakage an operator needs to how to be able to determine the operational status of the Floodlight Set.
Learn these leakage definitions and remember -- when in doubt, notify your supervisor.
Equipment operation is allowable with minor leakages (Class I or II). Of course,
consideration must be given to how much leakage is allowable and still keep your
equipment in operation. When in doubt, notify your supervisor.
When operating with Class I or II leaks, only do so until proper repair can be af-
fected.
Class Ill leaks should be immediately reported to your supervisor.
b. Class I. Seepage of fluid (as indicatd by wetness or discoloration) not great enough t form drops..
C. Class II. Leakage of fluid great enough to form drops, but not enough to cause drops to drip from area being
checked/inspectd.
d. Class Ill. Leakage of fluid great enough to form drops that fall from item being checked/inspected.
Table 4-2. Unit Preventive Maintenance Checks and Services
Location
Item
Interval
No.
of Item to
Procedure
Not Mission
Check/Service
Capable If:
1
Quarterly
Floodlight Assem-
Inspect for cracked or broken lenses, burned
bly
out or loose bulbs, damaged or defective
power cable, cracked or broken housing, and
loose or broken lamp socket.
2
Quarterly
Tower
Inspect for defective pulleys, crimped or
frayed cable, crackd or broken welds,
distorted sections, and loose or missing
safety stops.
3
Quarterly
Tower Tilt Lockbar
Inspect for cracked or broken welds and
secure mounting.
4
Quarterly
Extension Lock-
Inspect for stripped threads, bent or twisted
bar
mounting bolts, and proper engagement.
5
Quarterly
Control Panel
Inspect for loose mounting, loose electrical
connections, evidence of overheating, loose
mounting of components, and loose, mis-
sing, or illegible identification plates.
6
Quarterly
Ballast Boxes
Inspect for cracked or broken housing,
loose or missing mounting hardware, evi-
dence of overheating.
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