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TM 10-3930-643-20
PRELIMINARY PROCEDURES. (cont)
3-5.
Organizational Preventive Maintenance Checks and Services (PMCS). (cont)
(4) If anything looks wrong and you cannot fix it, write it down on your
DA Form 2404.
If you find something seriously wrong, report it to Direct
Support as soon as possible.
WARNING
TOXIC/FLAMMABLE
Dry cleaning solvent P-D-680 used for cleaning parts, is toxic and
flammable.
Use only in well ventilated areas. Wear protective goggles
and gloves. Do not smoke or allow open flames or sparks in areas
where cleaning solvent is used or stored.
Avoid contact with eyes,
skin or clothing.
If contact with eyes is made, flush with cold water
and seek medical attention immediately. If contact with skin or
clothing is made, flush with cold water. If you become
d i z z y w h i le
using cleaning solvent, get fresh air immediately.
(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.
U s e d ry
cleaning solvent P-D-680 to clean metal surfaces.
Use soap and water when you
clean rubber or plastic material.
(b) Bolts, nuts and screws. Check that they are not loose, missing,
bent or broken. You cannot try them all with a tool, of course, but look for
chipped paint, bare metal or rust around bolt heads.
Tighten any bolt, nut or
screw that you find loose.
(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 Direct Support.
(d) Electric wires and connectors.
L o o k f o r c r a c k e d o r b r o k en
insulation, bare wires and loose or
broken
connectors.
T i g h t e n l o o se
connections and make sure the wires are in good condition.
(e) Hoses and fluid lines.
Look 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 also mean a leak. If leakage comes from a loose
fitting or connector, tighten the fitting or connector.
If something is broken
or worn out, either correct it or report it to Direct Support.
(5) It is necessary for you to know how fluid leaks affect the status of
your equipment. The following are definitions of the types/classes of leakage
you need to know to be able to determine the status of your equipment.
Learn
and be familiar with them and REMEMBER - when in doubt, notify your supervisor.
3-4
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