TM 9-2320-365-10Table 3-2. Troubleshooting (Cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONe. ELECTRICAL SYSTEM (CONT)e1. ENGINE DOES NOT CRANK.If either circuit breaker (CB21 or CB77) is tripped, push in to reset.(c) Attempt to start engine (para 2-21a or b).(d) If engine still does not crank, check circuit breakers (CB21 and CB77) to see if either istripped.If either circuit breaker (CB21 or CB77) is tripped or engine does not crank, Notify UnitMaintenance.(e) Install PDP cover (para 3-13b).(f) Position master power switch to off (para 2-21f).e2. 12 VDC AND/OR 24 VDC CIRCUITS DO NOT OPERATE.Step 1. Check circuit breaker (CB70) in Power Distribution Panel (PDP) to see if it is tripped.(a) Remove PDP cover (para 3-13a).(b) Check circuit breaker (CB70) to see if it is tripped.If circuit breaker (CB70) is tripped, push in to reset.Step 2. Check to see if service lights illuminate.(a) Position main light switch to SER DRIVE (para 2-21c).If service lights do not illuminate, Notify Unit Maintenance.(b) Position main light switch to OFF (para 2-21c).(c) Install PDP cover (para 3-13b).e3. 24 VDC CIRCUITS DO NOT OPERATE.NOTEPerform a1. ENGINE DOES NOT CRANK, prior to beginning this task.Notify Unit Maintenance.e4. Deleted.Deleted.e5. ENGINE CRANKS BUT DOES NOT START.NOTEPerform Engine System Troubleshooting Task (a2. Engine Cranks But Does NotStart before performing this task).Notify Unit Maintenance.3-28 Change 1
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