TM 55-2840-254-23
1-39
1-39 TORCHING STARTS (Continued)
CHECK ELECTRICAL SYSTEM (REF. TM 55-
REPLACE FAULTY COMPONENTS.
1520-240-T OR TM 55-4920-328-13). FOUR-
TEEN VOLTS SHALL BE THE MINIMUM
,
VOLTAGE TO IGNITION UNIT WHEN
CRANKING.
IS ELECTRICAL SYSTEM FAULTY?
IN THE FOLLOWING STEPS ENSURE FUEL
BOOST PUMP SWITCHES ARE TURNED OFF
TO PREVENT POSSIBILITY OF ACCIDENTAL
FIRE.
REMOVE LEADS AND SPARK lGNITERS (REF.
INSTALL SPARK IGNITERS
TASK 7-6) FROM COMBUSTOR HOUSING.
(REF. TASK 7-10). FAULT WAS NOT IN
TAPE END OF LEADS TO COMBUSTOR HOUS-
IGNITION SYSTEM. CONTINUE TROUBLE-
ING. HAVE HELPER ACTIVATE IGNITION SYS-
SHOOTING.
TEM (REF. TM 55-1520-240-10 OR REF. TASK
TERS. IS THERE SPARK AT ALL IGNITERS?
FAULT CORRECTED. INSTALL SPARK lGNl-
REPLACE FAULTY SPARK IGNITERS (REF.
TERS (REF. TASK 7-10).
TASK 7-6). HAVE HELPER ACTIVATE lGNl-
TION SYSTEM (REF. TM 55-1520-240-10 OR
REF. TASK 1-107). CHECK FOR SPARK AT
SPARK IGNITERS.
IS THERE SPARK AT ALL IGNITERS?
REPLACE IGNITION COIL AND CABLE
HAVE HELPER ACTIVATE IGNITION SYSTEM
ASSEMBLY (REF. TASK 7-1). INSTALL SPARK
(REF. TM 55-1520-240-10 OR REF. TASK 1-107).
IGNITERS (REF. TASK 7-10).
CHECK FOR SPARK AT SPARK IGNITERS.
IS THERE SPARK AT ONLY 1 TO 3 SPARK
IGNITERS?
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