TM 10-6640-239-13 2-38 Table 2-12.  Operator Preventive Maintenance Checks and Services (PMCS) – CONT NOTE If  equipment  must  be  kept  in  continuous  operation,  only  do  procedures  that  can  be performed without disturbing operation.  Make the complete checks and services when equipment can be shut down. BE – Before AF – After MO – Monthly DU- During WE – Weekly Interval Item No. B E D U A F W E M O Item to Inspect Procedures Not Fully Mission Capable If: 46     Field Testing Kits Inspect kits contained in cases. Defective kits and missing components. 47 a. Inspect cylinders for leaks. Gas supply cylinder leaking Gas Cylinder Storage Locker b.  Inspect for ice maker bag. Ice bag missing. 48 a.   Inspect for damage. Missing screws. Refrigerator b.   Inspect for proper operation. Refrigerator is inoperative. 49 Gas Cylinder and Propane Lock Vents Inspect for damage. Clogged vents. 50 Fume Hood and Exhaust Vent Door Inspect for damage. Defective door, broken glass or any damage that prevents proper venting. 51 Cabinets a.   Inspect latches and hinges. Hinges or latches broken. b.   Inspect contents. Mission essential items damaged or missing. 52 Sink Inspect for snap-in fit in cabinet.    Sink is not secure and drain is not properly connected. 53 Storage Locker Inspect mounting. Loose or missing mounting bolts. 54 Desiccating Cabinet Inspect mounting. Loose or missing mounting bolts. 55 Propane Storage Locker Inspect bolts. Missing bolts. 56 ECU Remote Control Inspect for damage. Damage to control or missing capscrews.