SECTION III. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS)

TM 5-3895-373-20 SECTION III. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) Para Page Cleaning Agents .................................................................................................................... 2.6 2-7 Fluid Leakage........................................................................................................................ 2.8 2-7 General ................................................................................................................................. 2.5 2-6 PMCS Procedures................................................................................................................. 2.9 2-8 Preservatives and Lubricants ................................................................................................ 2.7 2-7 2.5. GENERAL. Preventive Maintenance Checks and Services (PMCS) means systematic caring, inspecting, and servicing of equipment. This will keep it in good condition and prevent breakdowns. As a paving machine mechanic, your mission is to: a. Be sure to perform your PMCS at the scheduled time. Always do your PMCS in the same order, so it becomes a habit. With some practice, anything wrong is quickly spotted. b. Do your PMCS at its scheduled interval. c. Check to see if items are in good condition, properly assembled or stowed, properly lubricated, and not loose or excessively worn. (1) Checking that items are in good condition is usually a visual check to see if the items are safe and usable. Good condition means not bent or twisted, chafed or burred, broken or cracked, bare or frayed, dented or collapsed, torn or cut, rusted or rotted, and not leaking. (2) Checking that items are properly assembled or stowed usually is a visual inspection. See if the items are in normal positions on the vehicle, and if all parts are present. (3) Excessively worn means worn beyond usable limits and likely to fail before the next scheduled inspection. This includes too much play (lash or lost motion) in linkages and mating parts. This includes unreadable markings, data and caution plates, and other printed matter. (4) Check welds for loose or chipped paint, rust, or gaps where parts mate together. d. The specific PMCS procedures do not say "adjust if necessary" or "replace if necessary". It is understood that whenever inspection shows the need for adjustments, repairs, or replacements, that appropriate work will be done. e. Steel nameplates, caution plates, and instruction plates may rust rapidly. Clean rusty plates well and coat heavily with clear lacquer. Refer to TM 43-0139. f. General precautions for cleaning are in the maintenance sections. g. The vehicle operator normally helps the organizational maintenance personnel perform the PMCS. The operator should make sure the paving machine is fairly clean. Do not wash the paving machine immediately before doing PMCS. h. The only organizational maintenance services are those general procedures listed below, unless approval is given for other service. (1) Adjust. Make all adjustments by following the procedures given in this manual or in bulletins. (2) Clean. Clean items by following the general cleaning procedures given in paragraph 2.6. (3) Service. Normally, service includes draining and refilling items with oil, and changing or cleaning the oil filter, air cleaner, or cartridges. (4) Tighten. Tighten items with enough force on the wrench handle to tighten according to good mechanical practice. Do not over-tighten; this may strip threads or cause distortion. Tightening includes using lockwashers, lock nuts, lock wire, or cotter pins when needed. Use a torque wrench when the procedure calls for one. (5) Modification work order application. Write all needed modification work orders (MWO) for the vehicle on DA Form 2408-5. i. When it is hard to do all of the PMCS procedures at one time, they can sometimes be done in parts. If possible, plan to do all the procedures within one week. j. Use DA Form 2404 (Equipment Inspection and Maintenance Worksheet) to record any faults that you discover, unless you can fix them. You DO NOT need to record faults that you fix. 2-6