Section III. OPERATOR/CREW PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)
Maintenance Forms and Records
Every mission begins and ends with the paperwork.
There isn't much of it, but you have to keep it up. The
forms and records you fill out have several uses. They
are a permanent record of the services, repairs, and
modifications made on your equipment. They are
reports to organizational maintenance and to your
commander. And they are a checklist for you when you
want to know what is wrong with the equipment after its
last use, and whether those faults have been fixed. For
the information you need on forms and records, refer to
DA Pam 738-750.
Perform Before (B) PMCS just before you
operate the equipment. Pay attention to the Cautions
Perform During (D) PMCS while you operate the
equipment, and at halts or rest stops.
Perform After (A) PMCS right after operating
the equipment. Pay attention to the Cautions and
Perform Weekly (W) PMCS once each week.
Perform Monthly (M) PMCS once a month.
If something doesn't work, troubleshoot it with
the instructions in this manual or notify your supervisor.
Always perform PMCS in the same order so it
gets to be a habit. Once you've had some practice,
you'll spot anything wrong in a hurry.
If anything looks wrong and you can't fix it, write
it on your DA Form 2404. If you find something
When you perform PMCS, take along the tools
you need to make all the checks. You always need a
rag or two.
Dry cleaning solvent P-D-680 is toxic
protective goggles and gloves, and
use only in a well-ventilated area.
Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors.
excessive heat. The solvent's flash
point is 100°F-130°F (38°C-59°C). If
cleaning solvent, immediately get
fresh air and medical help. if solvent
contacts eyes, immediately wash
your eyes and get medical aid.
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 on
all metal surfaces. Use soap and water
when you clean rubber or plastic material.
Bolts, nuts, and screws. Check them all
for obvious looseness, missing, bent, or
broken condition. You can't try them all
with a tool, but look for chipped paint,
bare metal, or rust around bolt heads. If
you find one you think is loose, tighten it.
If you can't tighten it, report it to
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.
Electric wires and connectors. Look for
cracked or broken insulation, bare wires,
and loose or broken connectors. Tighten
loose connectors and ensure that the
wires are in good shape.
Hoses and fluid lines. Look for wear,
damage, and leaks (wet spots) and ensure
that clamps and fittings are tight. 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
It is necessary for you to know how fluid leakage
affects the status of your equipment. The following are
definitions of the types/classes of leakage an operator or
crew member needs to know to be able to determine the
status of his/her equipment. Learn, then be familiar with
them and REMEMBER-WHEN IN DOUBT, NOTIFY