TM-9-2330-356-14
SEMITRAILER, TANK: 5000 GALLON, BULK HAUL, SELF LOAD/UNLOAD M967 AND M967A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, AUTOMOTIVE M969 AND M969A1; SEMITRAILER, TANK: 5000 GALLON, FUEL DISPENSING, UNDER/OVERWING AIRCRAFT M970 AND M970A1
TECHNICAL MANUAL; OPERATOR’S, UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL
OCTOBER 1990
TM-9-2330-356-14 - Page 117 of 528
TM 9-2330-356-14
Section Il. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)
3-2.
Maintenance Forms and Records
Every mission begins and ends with paperwork. There
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
permanent record of the the services, repairs, and
modifications made on your vehicle. They are reports to
unit maintenance and to your commander. And they area
checklist for you when you want to know what is wrong
with the vehicle after its last use, and whether those faults
have been fixed. For the information you need on forms
and records, see DA Pam 738-750.
3-3.
Preventive Maintenance Checks and
Services
a.
Always pay attention to the WARNINGS and
CAUTIONs while doing the PMCS checks.
b.
Do your BEFORE (B) PREVENTIVE MAIN-
TENANCE just before you operate the vehicle.
c.
Do your DURING (D) checks and services
PREVENTIVE MAINTENANCE while the equipment
and/or its component systems are in operation.
d.
Do your AFTER (A) PREVENTIVE MAINTE-
NANCE right after operating the vehicle.
e.
Do your WEEKLY (W) PREVENTIVE MAIN-
TENANCE once a week.
f .
Do your MONTHLY (M) PREVENTIVE
MAINTENANCE once a month.
g.
If something doesn’t work, troubleshoot it with
the instructions in this manual, or notify your supervisor.
h.
Always do your PREVENTIVE MAINTE-
NANCE CHECKS in the same order so that it gets to be a
habit. Once you’ve had some practice, you’ll spot anything
wrong in a hurry.
i.
If anything looks wrong and you can’t fix it, write it
on your DA Form 2404. If you find something seriously
wrong, report it to unit maintenance RIGHT NOW.
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.
WARNING
Dry cleaning solvent P-D-680 is toxic and
flammable. Always wear protective goggles
and gloves, and use only in a well-ventilated
area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO
NOT use near open flame or excessive heat.
The solvent’s flash point is 100°F-138°F
(38°C-59°C). If you become dizzy while
using cleaning solvent, immediately get fresh
air and medical help. If solvent contacts eyes,
Immediately wash your eyes with water and
get medical aid.
(1)
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 (item
11, Appendix E) on all metal surfaces. Use soap and water
when you clean rubber or plastic material.
(2)
Bolts, Nuts, and Screws.
Check them all for
obvious looseness, missing, bent, or broken condition. You
can’t 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, or report it to unit
maintenance if you can’t tighten it.
(3) Welds.
Look for loose or chipped paint, rust,
or gaps where parts are welded together. If you find a bad
weld, report it to unit maintenance.
(4)
Electric Wires and Connectors.
Look for
cracked or broken insulation, bare wires, and loose or
broken connectors. Tighten loose connectors and make
sure wires are in good shape.
(5) Hoses and Fluid Lines.
Look for wear, damage,
and leaks, and make sure clamps and fittings are tight. Wet
spots show leaks, of course, but a stain around a fitting or
connector can also 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.
k.
You must know how fluid leakage affects the
status of your vehicle. The following are definitions of the
types/classes of leakage you need to know to be able to
determine the status of your vehicle. Learn, then be
familiar with them and REMEMBER: WHEN IN
DOUBT NOTIFY YOUR SUPERVISOR!
Leakage Definitions for Crew/Operator PMCS
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 great enough to cause
drops to drip from item being checked/
inspected.
CLASS III
Leakage of fluid great enough to form
drops that fall from the item being
checked/inspected.
3-21
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