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 6-17 VOLTAGE SUPPLIED TO THE HEATER IS BELOW NORMAL VOLTAGE LIMITS (19VDC - 28VDC NORMAL RANGE); LOW VOLTAGE OR LOW VOLTAGE IN VENT ONLY CHECK/POSSIBLE CAUSE REF. REPAIR 7 CHECK VOLTAGE AT THE POWER BOARD TO LOGIC BOARD INTERFACE VOLTAGE BETWEEN GROUND (J9-PIN1) AND HOT WIRE (J2-PIN6) SHOULD EQUAL THE VOLTAGE SUPPLIED IF THE VOLTAGE IS LOW REPLACE THE POWER BOARD RESTART HEATER 8 DEFECTIVE LOGIC BOARD REPLACE LOGIC BOARD RESTART HEATER 6.5.23 E2 - LOW FUEL PRESSURE (Design Iteration 1 & 2 Only) FUEL SUPPLY PRESSURE TO THE HEATER IS BELOW 3PSI CHECK/POSSIBLE CAUSE REF. REPAIR 1 CHECK THAT VEHICLE OR SOURCE FUEL PUMP IS OPERATING 2.6 RECONNECT SOURCE FUEL PUMP RESTART HEATER 2 CHECK IF VEHICLE FUEL FILTER IS PLUGGED REPLACE FUEL FILTER RESTART HEATER 3 CHECK FOR AIR BUBBLES IN THE FUEL LINE. BLEED AIR FROM FUEL LINES. 4 CHECK TO SEE IF FUEL LINE LEADING TO HEATER IS PINCHED OR OBSTRUCTED STRAIGHTEN FUEL LINES AND REMOVE OBSTRUCTIONS RESTART HEATER 5 CHECK THAT THERE IS AMPLE FUEL SUPPLY TABLE 2-1 FILL FUEL TANK WITH FUEL RESTART HEATER 6 ENSURE THAT FUEL PRESSURE SENSOR IS CONNECTED TO WIRING HARNESS 5.5.1 RECONNECT FUEL PRESSURE SENSOR TO WIRING HARNESS RESTART HEATER 7 DEFECTIVE FUEL PRESSURE SENSOR 5.5.1 REPLACE FUEL PRESSURE SENSOR RESTART HEATER 8 DEFECTIVE WIRING HARNESS 5.5.6 REPLACE WIRING HARNESS RESTART HEATER