2-16. SPECIFIC PMCS PROCEDURES (continued)

2-15. GENERAL PMCS PROCEDURES (continued)

TABLE 2-1. PREVENTIVE MAINTENANCE CHECKS AND SERVICES

TM-9-2350-287-20-1 Carrier Ammunition Tracked M992A21 (2350-01-352-3021) EIC:AE6 Manual
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TM 9-2350-287-20-1 2-16. SPECIFIC PMCS PROCEDURES (continued). Nuts, Bolts, and Screws. Check for loose nuts, bolts, and screws. Loose fasteners can be difficult to spot without actually applying a wrench. You often can tell by loose or chipped paint around the nut, bolt head, or screw head and if bare metal or oxidation is present. Hoses and Fluid Lines. Check all hoses and fluid lines for signs of wear, leaks, loose clamps, and loose fittings. A stain around a fitting is a sign of a leak. Tighten, repair, or replace hoses and fittings. The following definitions concern classes of fluid leakage. Each crewmember must be familiar with these definitions in order to determine whether the vehicle is mission capable. CAUTION Equipment operation with minor leakage (Class I or II) is allowable. Consideration must be given to the fluid capacity in the system being inspected. When in doubt, notify your supervisor. When operating with Class I or Class II leaks, continue to check all fluid levels as required in your PMCS. Class Ill leaks should be reported to the Unit maintenance supervisor. Class I. Seepage of fluid, indicated by wetness or discoloration, not great enough to form drops. Class II. Leakage of fluid great enough to form drops but not enough to cause drops to fall from item being inspected. Class Ill. Leakage of fluid great enough to form drops that fall from the item being inspected. Thread Inserts. Check for loose, damaged, or cross-threaded thread inserts. Use a thread chaser on thread inserts to repair minor faults. If thread inserts are unserviceable, notify Direct Support maintenance. Explanation of Table Entries Item No. Numbers in this column are for reference. When completing DA Form 2404, include the item number for the check/service indicating a fault. item numbers appear in the order that you must do checks and services for the intervals listed. Interval. This column tells you when you must do the procedure listed in the Procedure column. Semiannual (S) procedures must be done every six months–1500 miles or 150 hours of engine operation, whichever comes first. Annual (A) procedures must be done every 12 months-3000 miles or 300 hours of engine operation, whichever comes first. Special intervals will also be specified (e.g., Every 100 hours lube) when the component requires service more frequently than semiannually or annually. Item To Be Inspected. This column describes the item to be checked or serviced. Procedure. This column gives you the procedure you must do to check or service the item listed in the Item to Be Inspected column to know if the equipment is ready or available for its intended mission or for operation. You must do the procedure at the time stated in the Interval column. Not Fully Mission Capable If. Information in this column tells you what faults will keep the equipment from being capable of performing its mission. If PMCS reveals faults listed in this column, do not operate the equipment. Follow standard operating procedures for maintaining the equipment or reporting equipment failures. 2-15

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