TM10-3930-660-20 Table  2-2. Electrical  Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE  ACTION CRARGING  SYSTEM 1. ALTERNATOR NOT CHARGING OR INSUFFICIENT CHARGING Step 1. Check for loose or corroded battery connections. Clean and tighten battery connections as needed, para. 8-44. Step 2. Check for alternator belt slippage. Check belt tension and replace belt if required, para. 7-9. Check belt tensioner para.  7-9. operation, and replace belt tensioner if necessary, Step 3. Check for alternator   pulley loose on shaft. Check pulley nut torque and tighten to 70-80 lb. ft. if necessary, para.  8-3. STARTING  SYSTEM 2. STARTING MOTOR WILL NOT TURN Step 1. Step 2. Check for corroded or loose Clean and tighten cables as battery terminal or cable. required, para. 8-44. Check for low battery output with STE/ICE. Test battery voltage using STE/ICE test #67. Battery voltage should be 24 volts or higher. Service or replace batteries as required if voltage is below minimum requirement. Refer to TM9-6140-200-14. 2-12