Section Il. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
Maintenance Forms and Records
area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO
NOT use near open flame or excessive heat.
Every mission begins and ends with paperwork. There
The solvent's flash point is 100F-138F
isn't much of it, but you have to keep it up. The forms and
records you will fill out have several uses. They are a
(38C-59C). If you become dizzy while
using cleaning solvent, immediately get fresh
permanent record of the the services, repairs, and
modifications made on your vehicle. They are reports to
air and medical help. If solvent contacts eyes,
Immediately wash your eyes with water and
unit maintenance and to your commander. And they area
get medical aid.
checklist for you when you want to know what is wrong
with the vehicle after its last use, and whether those faults
(1) Keep It Clean. Dirt, grease, oil, and debris only
have been fixed. For the information you need on forms
get in the way and may cover up a serious problem. Clean
and records, see DA Pam 738-750.
as you work and as needed. Use dry cleaning solvent (item
11, Appendix E) on all metal surfaces. Use soap and water
Preventive Maintenance Checks and
when you clean rubber or plastic material.
(2) Bolts, Nuts, and Screws. Check them all for
a. Always pay attention to the WARNINGS and
obvious looseness, missing, bent, or broken condition. You
CAUTIONs while doing the PMCS checks.
can't try them all with a tool, of course, but look for
chipped paint, bare metal, or rust around bolt heads. If you
Do your BEFORE (B) PREVENTIVE MAIN-
find one you think is loose, tighten it, or report it to unit
TENANCE just before you operate the vehicle.
maintenance if you can't tighten it.
Do your DURING (D) checks and services
(3) Welds. Look for loose or chipped paint, rust,
PREVENTIVE MAINTENANCE while the equipment
or gaps where parts are welded together. If you find a bad
and/or its component systems are in operation.
weld, report it to unit maintenance.
Do your AFTER (A) PREVENTIVE MAINTE-
(4) Electric Wires and Connectors. Look for
NANCE right after operating the vehicle.
cracked or broken insulation, bare wires, and loose or
broken connectors. Tighten loose connectors and make
e. Do your WEEKLY (W) PREVENTIVE MAIN-
sure wires are in good shape.
TENANCE once a week.
(5) Hoses and Fluid Lines. Look for wear, damage,
and leaks, and make sure clamps and fittings are tight. Wet
Do your MONTHLY (M) PREVENTIVE
spots show leaks, of course, but a stain around a fitting or
MAINTENANCE once a month.
connector can also mean a leak. If a leak comes from a
loose fitting or connector, tighten it. If something is
If something doesn't work, troubleshoot it with
broken or worn out, report it to unit maintenance.
the instructions in this manual, or notify your supervisor.
You must know how fluid leakage affects the
Always do your PREVENTIVE MAINTE-
status of your vehicle. The following are definitions of the
NANCE CHECKS in the same order so that it gets to be a
types/classes of leakage you need to know to be able to
habit. Once you've had some practice, you'll spot anything
determine the status of your vehicle. Learn, then be
wrong in a hurry.
familiar with them and REMEMBER: WHEN IN
DOUBT NOTIFY YOUR SUPERVISOR!
If anything looks wrong and you can't fix it, write it
on your DA Form 2404. If you find something seriously
Leakage Definitions for Crew/Operator PMCS
wrong, report it to unit maintenance RIGHT NOW.
Seepage of fluid (as indicated by wetness
or discoloration) not great enough to
j. When you do your PREVENTIVE MAINTE-
NANCE, take along the tools you need to make all the
checks. You'll always need a rag or two.
Leakage of fluid great enough to form
drops but not great enough to cause
drops to drip from item being checked/
Leakage of fluid great enough to form
Dry cleaning solvent P-D-680 is toxic and
flammable. Always wear protective goggles
drops that fall from the item being
and gloves, and use only in a well-ventilated