ARMY TM 9-6115-643-24
AIR FORCE TO 35C2-3-445-22
TABLE 2-6. UNIT TROUBLESHOOTING - Continued
TEST OR INSPECTION
Test for defective start relay (K15), paragraph 2.59.2.
If not defective, do step 12.
If defective, replace start relay, paragraph 2.59.
Test for defective cranking relay (K2), paragraph 2.100.2.
If cranking relay is not defective, do step 13.
If defective, replace cranking relay, paragraph 2.100.
Step 13. Test for defective crank disconnect relay (K16), paragraph 2.59.2.
If crank disconnect relay is not defective, do step 14.
If defective, replace crank disconnect relay, paragraph 2.59.
Check starting circuit for breaks or loose connections.
If starting circuit has no breaks and connections are tight, do step
If defective, repair or replace defective wires or connections.
Test for defective starter solenoid, refer to TM 9-2815-254-24.
If starter solenoid is not defective, do step 16.
If defective, replace starter solenoid in accordance with TM 9-2815-254-24.
Step 16. Test for defective starting motor, refer to TM 9-2815-254-24.
If defective, replace starting motor in accordance with TM 9-2815-254-24.
If starting motor is not defective, notify next higher level of maintenance.
2. ENGINE CRANKS BUT FAILS TO START
Test for low battery output, paragraph 2.12.1.
If batteries are fully charged, do step 2.
If not fully charged, replace batteries, paragraph 2.12.
Check for dogged or defective fuel filter/water separator.
If fuel filter/water separator is not dogged or defective, do step 3.
If clogged or defective, service fuel filter/water separator, paragraph 2.93.2.
Check for blocked fuel line(s) and/or components.
If fuel lines are not blocked, do step 4.
If blocked, unblock or replace fuel line(s) and/or components, paragraph 2.85 and/or
Check for air in fuel lines.
If air in fuel lines, bleed fuel lines in accordance with TM 9-2815-254-24.
If no air in fuel lines, do step 5.