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TM-9-2540-207-14&P Sustainment Manual for A20 Heater for M113 2540-01-396-2826 Download

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TM 9-2540-207-14&P 6-14 6.5.17 C9 - FUEL PUMP FAULT (Design Iteration 1 & 2 Only) OPERATING PARAMETERS FOR THE FUEL PUMP ARE OUTSIDE NORMAL LIMITS CHECK/POSSIBLE CAUSE REF. REPAIR 1 CHECK THAT ELECTRICAL CONNECTOR IS ATTACHED TO FUEL PUMP 5.5.3 RECONNECT FUEL PUMP TO WIRING HARNESS RESTART HEATER 2 DEFECTIVE FUEL PUMP 5.5.3 REPLACE FUEL PUMP RESTART HEATER 3 DEFECTIVE ELECTRONIC PROGRAMMED CONTROLLER BOARD 5.2.5 REPLACE ELECTRONIC PROGRAMMED CONTROLLER RESTART HEATER 4 DEFECTIVE WIRING HARNESS 5.5.6 REPLACE WIRING HARNESS RESTART HEATER NOTE:THE HEATER DOES NOT SHUT DOWN WHEN A C9 FAULT IS ENCOUNTERED, BUT WILL CONTINUE TO OPERATE AT REDUCED PERFORMANCE. 6.5.18 C9 - FUEL PUMP FAULT (Design Iteration 3 Only) OPERATING PARAMETERS FOR THE FUEL PUMP ARE OUTSIDE NORMAL LIMITS; FUEL PUMP OPEN CHECK/POSSIBLE CAUSE REF. REPAIR 1 CHECK THAT ELECTRICAL CONNECTOR IS ATTACHED TO FUEL PUMP AND HARNESS TO POWER BOARD 5.5.3 RECONNECT FUEL PUMP TO WIRING HARNESS RECONNECT PLUG P8 INTO POWER BOARD RESTART HEATER 2 CHECK FUEL PUMP RESISTANCE RESISTANCE SHOULD BE 7 TO 8 OHMS IF RESISTANCE IS HIGH OR AN OPEN LINE REPLACE FUEL PUMP RESTART HEATER 3 CHECK WIRING HARNESS FOR DAMAGE AND CONTINUITY CHECK 2 WIRES FROM PLUG P7 TO POWER BOARD PLUG P8: P7-PIN A TO P8-PIN2 P7-PIN B TO P8-PIN1 IF ANY CHECK FAILS REPLACE WIRING HARNESS RESTART HEATER 4 DEFECTIVE POWER BOARD REPLACE POWER BOARD RESTART HEATER 5 DEFECTIVE LOGIC BOARD REPLACE LOGIC BOARD RESTART HEATER NOTE: THE HEATER DOES NOT SHUT DOWN WHEN A C9 FAULT IS ENCOUNTERED, BUT WILL CONTINUE TO OPERATE AT REDUCED PERFORMANCE.