TM 55-2840-254-23
1-35 ENGINE DOES NOT START - NO SNAPPING SOUND IS HEARD WHEN
1-35
STARTING SYSTEM IS ACTIVATED (Continued)
IN THE FOLLOWING STEPS ENSURE FUEL
BOOST PUMP SWITCHES ARE TURNED OFF
TO PREVENT POSSIBILITY OF ACCIDENTAL
FIRE.
REMOVE LEADS AND SPARK IGNITERS
(REF. TASK 7-6) FROM COMBUSTOR HOUS-
INSTALL SPARK IGNITERS AND LEADS
ING. TAPE, END OF LEADS TO COMBUSTOR
(REF. TASK 7-10). FAULT WAS NOT IN ELEC-
HOUSING. HAVE HELPER ACTIVATE lGNl-
TRICAL SYSTEM TRY RE-STARTING ENGINE
TION SYSTEM (REF. TM55-1520-240-10 OR
(REF. TM55-1520-240-10 OR TASK 1-107).
OBSERVE FOR NEW SYMPTOM.
IGNITERS. IS THERE SPARK AT ALL
IGNITERS?
REPLACE FAULTY SPARK IGNITERS (REF.
FAULT CORRECTED. INSTALL SPARK
TASK 7-6). HAVE HELPER ACTIVATE lGNl-
IGNITERS (REF. TASK 7-10).
TION SYSTEM (REF. TM55-1520-240-10 OR
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. TM55-1520-240-10 OR TASK 1-107).
IGNITERS (REF. TASK 7-10).
CHECK FOR SPARK AT SPARK IGNITERS.
IS THERE SPARK AT ONLY 1 T0 3 SPARK
IGNITERS?
REPLACE IGNITION EXCITER (REF. TASK
7-11) AND INSTALL SPARK IGNITERS (REF.
TASK 7-10).
FOLLOW-ON MAINTENANCE:
None
END OF TASK
1-129
