TM 9-2330-373-14 & P
4-7. ORGANIZATIONAL PREVENTIVE MAINTENANCE CHECKS AND SERVICES (cont)
(3) Do your Annual (A) PREVENTIVE MAINTENANCE once each year.
(4) Do your Miles (MI) PREVENTIVE MAINTENANCE when the mileage of the semitrailer reaches the amount listed.
b. If something doesn't work, troubleshoot it with the instructions in this manual, or notify your supervisor.
c. Always do your preventive maintenance 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.
d. If anything looks wrong and you can't fix it, write it down on your DA Form 2404. If you find something seriously
wrong, report it to direct support as soon as possible.
Cleaning solvent 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 1380 F (58.8 C).
(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 cleaning solvent (item 3, appendix E) to clean metal surfaces. Use soap and water when
you clean rubber or plastic material.
(2) Bolts, nuts and screws: Check that they are not loose, missing, bent, or broken. You can't try them all with
a tool, of course, but look for chipped paint, bare metal or rust around bolt heads. Tighten any that you find loose.
(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 direct support.
(4) Electric wires and connectors: Look for cracked, frayed or broken insulation, bare wires, and loose or
broken connections and connectors. Tighten all loose wires and connectors. Replace or repair as required.
(5) Hoses and fluid lines: Look for wear, damage and leaks. Make sure clamps and fittings are tight. Wet
spots show leaks, or course, but a stain around a fitting or connector can mean a leak. If a leak comes from a loose fitting
or connector, tighten it. If something is broken or worn out, either correct it or report it to direct support (refer to MAC