TM  10-4320-226-14 Item No. 13 14 15 16 17 18 19 20 Table 2-2 Operator Preventive Maintenance Checks and Services for-the 350 GPM pumping Assembly. (continued) Interval During During During During During During After After Location Item  to Check/Service AIR CLEANER ASSEMBLY AIR CLEANER ASSEMBLY EXHAUST  SYSTEM EXHAUST  SYSTEM FUEL SYSTEM FUEL  LINES CONTROL PANEL PUMPING  ASSEMBLY CENTRIFUGAL   PUMP FUEL TANK FUEL TANK WIRING  HARNESS FUEL FILTER/ SEPARATOR Procedure Check service indicator for red signal indicating that air cleaner  requires Visually  inspect exhaust pipe and obvious damage. excessive noise. Visually  inspect servicing. spark  arrestor, muffler  for Listen for fuel lines and connections for leaks. Inspect for damage, secure mounting and proper operation of controls and instruments. Check for signs of leakage, unusual noise, or vibration. Check fuel tank gauge. When low,    service tank (paragraph  3.7) Inspect for frayed or worn spots in  wiring  harness. Drain water into suitable container. Not  Fully Mission Capable if: Service indicator cannot be reset. Fuel leaks at any level or fuel lines damaged. Proper indications are not maintained. Any class leak, unusual noise, or vibration. Wiring  are damaged  or broken. 2-10