ARMY TM 9-6115-672-14 AIR FORCE TO 35C2-3-444-32 MARINE CORPS TM 09244A/09245A-14 4-9 TABLE 4-3.  UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) (continued) M - Monthly   Q - Quarterly   S - Semi-annually  A - Annually   B - Biannually   H - Hours Interval Item No. M Q S A B H Item to be inspected Procedures Check for and have repaired or adjusted as necessary Equipment is not ready/ available if: 8 300 Crankcase Breather Filter Assembly Inspect and service.  Refer to paragraph 4.9.6. 9 Hardware and sound insulation Inspect for loose, damaged, or missing hardware and sound insulation.  tighten loose hardware.  Repair or replace damaged or missing hardware or insulation.  Refer to paragraph 4.7. Loose, missing, or damaged hardware or insulation. 10 Radiator and interior of generator set Clean radiator exterior surfaces.   Refer to paragraph 4.10.7. 11 Magnetic pickup Remove, inspect, and clean magnetic pickup.  Refer to paragraph 4.13.3. Magnetic pickup is damaged. 12 Wiring harnesses Check wiring harnesses for breaks and loose connections.   Repair and tighten wiring harnesses as necessary. Wiring harnesses are damaged or connections are loose. 13 Muffler Check muffler for leaks, restriction, and accumulation of carbon.  Replace or clean as required.  Refer to paragraph 4.9.1. Muffler leaks, is restricted, or has excessive carbon accumulation. NOTE If the auxiliary fuel system is used as the primary fuel source, the auxiliary fuel filter must be replaced semi-annually. 14 500 Auxiliary fuel filter Check for proper operation using the auxiliary system as primary source.  Refer to paragraph 4.11.2.