This section contains instructions for performing PMCS on the trailer. The procedure lists checks,
services, and criteria to ensure that the trailer is prepared for operation. Perform the checks and
services at the specified intervals, keeping in mind the following guidelines:
Do your before (B) PMCS just before operating the vehicle. Pay attention to CAUTIONS and
Do your during (D) PMCS while operating the vehicle. During means to monitor the vehicle and its
related parts while being operated.
Do your after (A) PMCS right after operating the vehicle. Pay attention to CAUTIONS and WARNINGS.
If something doesn't work, troubleshoot it with the instructions in this manual and notify your
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.
If anything looks wrong and you can't fix it, write it on a DA Form 2404. if you find something seriously
wrong, report it to organizational maintenance immediately.
When you do your preventive maintenance, take along the tools you need to make all the checks. You
always need a rag or two.
Drycleaning solvent PD-680 is both toxic and flammable. Avoid prolonged breathing of
vapors and avoid skin contact. Do not use near open flame or excessive heat. Flash point
of solvent is 138F (59C). Serious illness, injury, or loss of life could result from
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 PD-680 on all metal surfaces. Use soap
and water to clean rubber or plastic material.
Bolts, Nuts, and Screws. Check that they are not loose, missing, bent, or broken. Look for chipped
paint, bare metal, or rust around boltheads. Report loose nuts and bolts to organizational
Welds. Look for loose or chipped paint, rust, or gaps where parts are welded together. Report bad
welds to organizational maintenance.
Electric Wires and Connectors. Look for cracked or broken insulation, bare wires, and loose or
broken connectors. Report loose connections and faulty wiring to organizational maintenance.
Hoses and Air Lines. Look for wear, damage, or leaks. Make sure clamps and fittings are tight. If a
leak comes from a loose fitting or connector, or if something is broken or worn out, notify