ARMY   TM   9-6115-641-24 AIR  FORCE  TO  35C2-3-456-12 Section   IV.   PREVENTIVE   MAINTENANCE   CHECKS   AND   SERVICES   (PMCS) 2-5. PMCS PROCEDURES. 2-5-1. General. To ensure that the generator set is ready for operation at all times, it must be inspected so that defects can be discovered and corrected before they result in serious damage or failure. 2-5-2. Puropse of PMCS TABLE.TABLE. Your Preventive Maintenance Checks and Services table lists the inspections and care of your equipment required to keep it in good operating condition. 2-5-3. Puropse of Service Intervals. The interval column of your PMCS table tells you when to do a certain check or service. 2-5-4. Procedures Column. The procedures column of your PMCS table tells you how to do the required checks and services. Carefully follow these instructions. 2-5–5. The “Equipment Is Not Ready/Available If”. This column tells you when and why the generator set cannot be used. NOTE The terms ready/available and mission capable refer to the same status: Generator set is on hand and is able to perform its combat missions (See DA PAM 738–750). 2-5-6. Reporting and Correcting Deficiencies. If your generator set does not perform as required, refer to Troubleshoot- ing section for possible problems. (A) Report any malfunctions or failures on DA Form 2404, or refer to DA PAM 738-750. (F) report any malfunctions or failures in accordance with applicable directives. Table   2-5.   Unit   Preventive   Maintenance   Checks   and   Services M–Monthly Q–Quarterly S-Semi–annually A–Annually B-Bi-annually H–Hours Item No. 1 2 3 4 2-8 M Q Interval S • A • • B • H 250 250 1500 Item to be Inspected Engine Lube Oil Fuel Filter/ Water Separator Element Cooling System Radiator Cap Procedures Check for and have repaired or adjusted as necessary Drain engine lube oil. Add proper lube oil per LO 9–6115–641–12. NOTE: Oil filter should be changed with lube oil change. Refer to TM 9-281 5–252–24. Change fuel filter/ water  separator element, Refer to paragraph  2-87. Drain coolant and flush cooling system. Add proper coolant. Refer to paragraph 2-69-2. Inspect radiator cap for corrosion, torn or deteriorated seal, and obvious damaged. Equipment is not Ready/Available If: Radiator cap or seal is  damaged.