TM 5-1940-277-34TROUBLESHOOTING PROCEDURES (Continued)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION3.ENGINE WILL NOT CRANKStep 1.Check battery cells specific gravity (refer to TM 5-1940-277-20).a.Replace battery (refer to TM 5-1940-277-20).b.If battery check satisfactory go to step 2.Step 2.Check-for defective starting switch (refer to TM 5-1940-277-20).a.Replace defective starting switch (refer to TM 5-1940-277-20).b.If switch operates correctly go to step 3.Step 3.Check for faulty wiring and connections (refer to page 2-109).a.Repair faulty wiring (refer to page 2-109).b.If wiring satisfactory go to step 4.Step 4.Test starter (refer to TM 5-1940-277-20).a.If voltage not present replace starter solenoid (refer to TM 5-1940-277-20).b.If voltage present but starter does not function replace starter (refer to TM 5-1940-277-20).Step 5.Check for hydrostatic lock.a.Attempt to hand crank engine.b.If engine will not turn over by hand, remove injectors one at a time until locked cylinders are freed. (Refer to TM 5-1940-277-20).c.If engines still will not turn go to step 6.Change 1 2-6
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