TM 10-3930-664-10 MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION WARNING The engine, radiator, and oil cooler can be extremely hot.  Contacting exposed skin to these areas could result in severe burns. Step 2.   Check oil cooler for obstruction by debris. Clean debris from oil cooler. Step 3.   Check transmission oil hoses for leaks or damage. Report leaks or damage to Organizational Maintenance. 12. BATTERY FAILS TO MAINTAIN CHARGE Step 1.   Check level of battery electrolyte. If battery electrolyte level does not cover plates, notify Organizational Maintenance. Step 2.   Check for loose, corroded or damaged battery cables and battery terminals. Report loose, corroded or damaged battery cables or battery terminals to Organizational Maintenance. Step 3.   With engine running, check ammeter for indication in the green zone. If ammeter registers in the red zone, notify Organizational Maintenance. 13. 4KRTFL STARTS BUT WILL NOT TRAVEL Step 1.   Check if park brake is engaged (transmission will not engage with park brake engaged ) Position park brake switch to OFF. 3-8