TM 10-3930-669-10 Table 2-3.  Operator Preventive Maintenance Checks and Services - CONT. Location Item Interval Item to Procedure Not Fully Mission No. Check/Service Capable If: DAILY- ENGINE Continued WARNING Remove all jewelry such as rings, dog tags, bracelets, etc.  If jewelry contacts battery terminal, a direct short may result in instant heating of tools, damage to equipment, and injury or death to personnel. 6 Before Batteries, Check that batteries and cables are free Battery cracked, Battery cables, of corrosion.  Check that battery cables missing, or engine will Battery box are secure.  Check battery box for rust not start. and corrosion.  Check that battery box is secured on vehicle.  Notify Unit Maintenance if necessary. 2-14