TM 9-2320-302-20
0020 00-2
UNIT PREVENTIVE MAINTENANCE CHECKS AND
SERVICES (PMCS) INTRODUCTION - CONTINUED
0020 00
GENERAL LUBRICATION PROCEDURES - CONTINUED
4.
Keep all external parts of equipment not requiring lubrication free of lubricants. Before lubrication, wipe lubrication fit-
tings with a clean rag (Item 28, WP 0235 00). After lubrication, wipe off excess oil or grease to prevent accumulation of
foreign matter.
5.
Refer to FM 9-207 for lubrication instructions in cold weather.
6.
Refer to AR 70-12 for use of standardized fuels and lubricants.
7.
Oil filters will be changed when:
a.
they are known to be contaminated or clogged;
b.
service is directed by Army Oil Analysis Program (AOAP) laboratory analysis; or
c.
at prescribed hardtime intervals.
8.
Engine oil and transmission fluid must be sampled initially at 90 days of operation as prescribed by DA Pam 738-750.
Thereafter, engine oil and transmission fluid are sampled semiannually, unless AOAP results dictate otherwise.
9.
For equipment under manufacturer’s warranty, hardtime oil service intervals shall be followed. Intervals shall be short-
ened if lubricants are known to be contaminated or if operation is under adverse conditions (i.e., longer than usual oper-
ating hours, extended idling periods or extreme dust).
GENERAL PMCS PROCEDURES
1.
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 any deficiency is discovered, perform the appropriate troubleshooting task in Chapter 2 of this man-
ual. If any component or system is not serviceable, or if the given service does not correct the deficiency, notify your
supervisor.
2.
Before performing preventive maintenance, read all the checks required for the applicable interval and prepare all tools
needed to make all checks. Have several clean rags (Item 28, WP 0235 00) handy. Perform ALL inspections at the appli-
cable interval.
a.
Keep It Clean. Dirt, grease, oil, and debris get in the way and may cover up a serious problem. Clean as you work
and as needed. Use detergent (Item 11, WP 0235 00) and water when you clean.
b.
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 19, WP 0235 00). Report it to your supervisor.
c.
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.
d.
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.
e.
Electric Wires and Connectors. Look for cracked or broken insulation, bare wires, and loose or broken connec-
tors. Tighten loose connectors and ensure that the wires are in good condition.
