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 6-19 6.5.25 E3 - LOW BURNER AIR FLOW (Design Iteration 1 & 2 Only) COMBUSTION AIR FLOW OPERATING LIMITS ARE OUT OF ALLOWABLE RANGE CHECK/POSSIBLE CAUSE REF. REPAIR 1 CHECK FOR OBSTRUCTIONS IN COMBUSTION INLET OR EXHAUST DUCTING REMOVE OBSTRUCTIONS RESTART HEATER 2 CHECK FOR KINKING/BLOCKAGE OF DUCTING TO HEATER REPLACE DEFECTIVE DUCTING AND REMOVE ALL UNNECESSARY BENDS RESTART HEATER 3 IF AMBIENT TEMPERATURE IS BELOW 32°F (0°C), CHECK FOR FROST OBSTRUCTING HEATER DUCTING REMOVE FROST FROM AIR INLET RESTART HEATER 4 CHECK FOR CARBON ACCUMULATION INSIDE BURNER 5.3.7 5.4.1 CLEAN BURNER HOUSING CLEAN HEAT EXCHANGER RESTART HEATER CHECK CONDITION OF FLAME TUBE AND BURNER CHAMBER 5.3.2 5.3.5 IF EITHER ONE IS DISTORTED, REPLACE FLAME TUBE AND BURNER CHAMBER RESTART HEATER 5 DEFECTIVE BURNER FAN PLATE 5.5.4 REPLACE BURNER FAN PLATE RESTART HEATER 6 DEFECTIVE ELECTRONIC PROGRAMMED CONTROLLER BOARD 5.2.5 REPLACE ELECTRONIC PROGRAMMED CONTROLLER RESTART HEATER 7 AIR IN FUEL LINES. PURGE HEATER AND BLEED FUEL LINES. 8 DEFECTIVE BURNER FAN MOTOR 5.6.5 REPLACE BURNER FAN MOTOR RESTART HEATER 9 DEFECTIVE BURNER FAN DRIVER BOARD 5.6.3 REPLACE BURNER FAN DRIVER BOARD RESTART HEATER 10 DEFECTIVE BURNER FAN IMPELLER 5.6.4 REPLACE BURNER FAN IMPELLER RESTART HEATER NOTE: OBSTRUCTIONS TO LOOK FOR IN COMBUSTION OR EXHAUST DUCTING INCLUDE: ICE, FROST, DUST, MUD, WATER, FOREIGN OBJECTS, SOOT, RODENTS, SMALL BIRDS, ETC.