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 6-20 6.5.26 E3- LOW BURNER AIRFLOW (Design Iteration 3 Only) HEATER DID NOT REACH MODE 04 WITHIN 3MINUTES 30 SECONDS; LOW BURNER AIRFLOW – ON IGNITION TIME OUT OR – LOW BURNER AIR FLOW IN STAGE 04 OR – DURING RUN MODE NOTE: IF ANY BURNER COMPONENTS ARE NEW, START-UP MAY REQUIRE 3 ATTEMPTS. CHECK/POSSIBLE CAUSE REF. REPAIR 1 CHECK FOR OBSTRUCTIONS IN COMBUSTION INLET OR EXHAUST DUCTING CHECK THAT EXHAUST IS SET-UP TO MIL-PRF 62250D REMOVE OBSTRUCTIONS RESTART HEATER 2 CHECK FOR KINKING/BLOCKAGE OF INLET DUCTING TO HEATER REPLACE DEFECTIVE INLET 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 AIR IN FUEL LINES. PURGE HEATER AND BLEED FUEL LINES. 5 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 6 CHECK FOR WARPED BURNER FAN PLATE; GAP BETWEEN GASKET AND CASTING 5.5.4 REPLACE BURNER FAN PLATE RESTART HEATER 7 DEFECTIVE BURNER FAN MOTOR 5.6.5 REPLACE BURNER FAN MOTOR RESTART HEATER 8 DEFECTIVE BURNER FAN IMPELLER 5.6.4 REPLACE BURNER FAN IMPELLER RESTART HEATER 9 DEFECTIVE POWER BOARD REPLACE POWER BOARD 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.