TM 9-4940-568-20
2-50
Table 2-7. Engine Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. THE ENGINE DOES NOT CRANK.
Check fuse F1.
Attempt to slave start the engine.
If the engine starts, troubleshoot battery and charging circuit.
Check for 19-24 VDC at A11 card Terminal Board (TB) 1-9.
If no or low voltage is present, troubleshoot wire.
Check for 19-24 VDC at A11 card TB1 terminal 7.
If no voltage is present, notify Direct Support to replace A11 card assembly.
Check for 19-24 VDC at TB31 terminal 1.
If no voltage is present, replace wire.
Close S30 and check for 19-24 VDC at terminal 2.
If no voltage is present, replace starter solenoid terminal (SW).
Check for 19-24 VDC at A11 card TB1 terminal 6.
If no voltage is present, replace wire.
Check for 19-24 VDC at A11 card TB1 terminal 8.
If no voltage is present, notify Direct Support to replace A11 card assembly.
Check for 19-24 VDC at Run-Stop-Remote Switch (S12) terminal 3.
If no voltage is present, replace wire.
Check for 19-24 VDC at S12 terminal 2 with switch in run position.
If no voltage is present, replace Run-Stop-Remote Switch (S12).
Check for 19-24 VDC at A11 card P4J4 terminal 7.
If no voltage is present, replace wire.
Check for 19-24 VDC at A11 card TB1 terminal 8.
If no voltage is present, notify Direct Support to replace A11 card assembly.
