TM 55-2210-223-12
TO 45A2-2-14-41
2-5. PMCS PROCEDURES (cont)
(3)
Check bolts, nuts, and screws for obvious looseness or missing, bent, or broken condition. Do not try them
all with a tool, but look for chipped paint, bare metal, or rust around bolt head. If you find one loose, report
it to unit maintenance.
(4)
Look for loose or chipped paint, rust, or gaps where parts are welded together. If a bad weld is found,
report it to unit maintenance.
(5)
Check electrical wires and connectors for cracked or broken insulation, bare wires, and loose or broken
connectors.
(6)
Check Hoses and fluid lines for wear, damage, and leaks. Make sure clamps and fittings are tight. Wet
spots show leaks, 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 unit maintenance.
2-6. SPECIAL INSTRUCTIONS (PMCS)
It is necessary for you to know how fluid leakage affects the status of equipment. The following are definitions of the
types/classes of leakage to help determine the status of locomotive parts. Learn them and be familiar with each type of
leak. Remember when in doubt notify unit maintenance.
Leakage definitions:
WARNING
A minor water leak, if allowed to enter electrical
equipment, can cause injury to personnel and/or
damage to generators, motor and switches.
CAUTION
Equipment operation is allowed with minor leakage
(Class I or II). Consideration must be given to the
fluid capacity of the item being checked/inspected.
When in doubt, notify unit maintenance.
When operating with class I or II leaks, increase the
frequency of fluid level checks in excess of that
required in PMCS. Parts without fluid will stop
working and/or cause damage to the parts.
CLASS
I
Seepage of fluid (as indicated by wetness or discoloration) not 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 drip from the item being checked/inspected.
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