WARNING
Under no circumstances should a circuit breaker
be prevented from tripping by any means. Over-
loaded electrical circuits can cause extensive
damage to the machine and/or injury to personnel.
a. Keep it clean: Dirt, grease, oil and debris only get in the way
and may cover up a serious problem. Clean as you work and as needed. Use
dry cleaning solvent (SD-2) on all metal surfaces. Use soap and water to
clean rubber or plastic material.
b . Bolts, Nuts and Screws: Check them for obvious looseness, missing,
bent or broken condition. You cannot try them all with a tool, of course,
but look for chipped paint, bare metal or rust around bolt heads. If you
find one you think is loose, tighten it. Report it to Organizational Main-
tenance if you can't tighten it.
c. Welds: Look for loose or chipped paint, rust or gaps where parts
are welded together. If you find a bad weld, report it to Organizational
Maintenance.
d. Electric Wires and Connectors: Look for cracked or broken insula-
tion, bare wires and loose or broken connectors. Report damage or loose wiring
to Organizational Maintenance.
e. Hoses and Fluid Lines: Look for wear, damage and leaks. Check for
loose clamps and fittings. Wet spots show leaks, of course, 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
Organizational Maintenance.
2. I t i s n e c e s s a r y f o r y o u t o k n o w t h e d e f i n i t i o n s o f t h e t y p e s / c l a s s e s
of leakage and how it determines the status of your equipment.
a.
Leakage definitions are as follows:
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 drips that fall from
the item being checked/inspected.
CAUTION
Equipment operation is allowable with minor leakage
(Class I or II). Of course, consideration must be
given to the fluid capacity in the item/system being
checked/inspected.
When operating with Class I or II leaks, continue to
check fluid levels as required in your PMCS. Class III
leaks should be reported to your supervisor or to
Organizational Maintenance.
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