TM 5-3895 358-14&P
APPENDIX J
PREVENTIVE MAINTENANCE CHECKS AND SERVICES
J-1. 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, see
TM 38-750.
J-2. Preventive Maintenance Checks and Services
a. When you do your preventive maintenance, take along the tools you need to make all the checks. You
always need a rag or two.
WARNING
Drycleaning solvent SD-2, used to clean parts, is potentially dangerous to personnel and
property. Do not use near open flame or excessive heat. Flash point of solvent is 138F.
(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 drycleaning solvent (SD-2) to clean 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 organizational maintenance.
(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 organizational 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 the 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 mean a leak. If a leak
comes from a loose fitting connector, tighten it. If something is broken or worn out, report it to organizational
maintenance.
b. 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 you need to know to be able to determine the status of your
equipment. Learn, then be familiar with them and REMEMBER-WHEN IN DOUBT, NOTIFY YOUR
SUPERVISOR!
Leakage definitions are:
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 item
being checked/inspected.
CLASS III
Leakage of fluid great enough to
form drops 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 in doubt, notify your supervisor. When
operating with Class I or II leaks, continue to check fluid levels as required in your PMCS. Class m leaks
should be reported to your supervisor or to organizational maintenance.
5-3. Operator/ Crew Preventive Maintenance Checks and Services
a. Do your (B) preventive maintenance just before you operate the equipment. Pay attention to the
cautions and warnings.
b. Do your (D) preventive maintenance during operation. (During operation means to monitor the
equipment while it is actually being used).
c. Do your (A) preventive maintenance right after operating the equipment. Pay attention to the cautions
and warnings.
d. Do your (W) preventive maintenance weekly.
e. Do your (M) preventive maintenance once a month.
f. If something doesn't work, troubleshoot it with the instructions in your manual or notify your supervisor.
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