TM 9-4940-568-20
2-56
Table 2-7. Engine Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. ENGINE WILL NOT CRANK OR CRANKS SLOWLY.
Starting motor spins but will not crank the engine.
Remove the starting motor and check for broken teeth on the ring gear or broken starting
motor spring (Para 8-43).
Starting circuit parts or connections loose, broken, damaged or corroded.
Clean, replace or tighten connections and/or parts.
Battery charge low.
Check 19-24 VDC battery voltage.
No voltage to starter solenoid.
Check voltage to solenoid.
Crankshaft rotation restricted.
Bar the engine to check for rotational resistance.
Solenoid or starting motor malfunction.
Replace starting motor (Para 8-43).
