PREVENTIVE MAINTENANCE CHECKS
AND SERVICES (PMCS) INTRODUCTION - CONTINUED
GENERAL PMCS PROCEDURES
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 the truck does not perform as required,
refer to the appropriate troubleshooting procedure in Chapter 3.
If anything looks wrong and you can't fix it, write it on your DA Form 2404. If you find
something seriously wrong, IMMEDIATELY report it to your supervisor.
Before performing preventive maintenance, read all the checks required for the applica-
ble interval and prepare all the tools you need to make all the checks. You'll always need
a rag (Item 16, WP 0020 00 00) or two.
Keep It Clean. Dirt, grease, oil, and debris get in the way and may cover up a seri-
ous problem. Clean as you work and as needed. Use detergent (Item 4, WP 0020 00
00) and water when you clean metal, rubber, plastic, and painted surfaces.
Rust and Corrosion. Check metal parts for rust and corrosion. If any bare metal or
corrosion exists, clean and apply a light coat of lubricating oil (Item 14, WP 0020
00). Report it to your supervisor.
Bolts, Nuts, and Screws. Check bolts, nuts, and screws 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.
Welds. Look for loose or chipped paint, rust, or gaps where parts are welded
together. If you find a bad weld, report it to your supervisor.
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 condition.
Hoses and Fluid Lines. Look for wear, damage, and signs of leaks. Ensure that
clamps and fittings are tight. Wet spots indicate leaks, 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 your supervisor.
Fluid Leakage. It is necessary for you to know how fluid leakage affects the status
of your M915A3 Tractor Truck. Following are types/classes of leakage you need to
know to be able to determine the status of your truck. Learn these leakage defini-
tions and remember - when in doubt, notify your supervisor.