TM 10-3930-659-20 Table 4-2.  Electrical Troubleshooting  (Con’t). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 3. Inspect fan belts for proper tension and defects. Adjust fan belt tension (see paragraph 5-37). NOTE Fan  belts  should  be  replaced  in  matched  sets  even  if  only  one  belt  is  worn  or damaged. Replace worn or damaged fan belts (see paragraph 5-37). WARNING •  Remove  all  jewelry  such  as  rings,  dog  tags,  bracelets,  etc.    If  jewelry  contacts battery terminal, a direct short will result, causing Instant heating of jewelry which will result In severe injury to personnel. • Battery gases can explode.  DO NOT smoke or allow sparks or open flames near batteries.    Wear  safety  glasses  or  goggles  when  checking  batteries.    Failure  to follow this warning may result In death or serious Injury to personnel. • Sulfuric acid contained In batteries can cause serious burns.  If battery corrosion or electrolyte makes contact with skin, eyes, or clothing, take immediate action to stop the corrosive burning effects.  Failure to follow these procedures may result in death or serious Injury to personnel. a.    Eyes.    Flush  with  cold  water  for  no  less  than  15  minutes  and  seek  medical attention Immediately. b.  Skin.  Flush with large amounts of cold water until all acid Is removed.  Seek medical attention as required. c.  Internal.  If corrosion or electrolyte Is Ingested, drink large amounts of water or milk.  Follow with milk of magnesia, beaten egg, or vegetable oil.  Seek medical attention immediately. d.  Clothing/Equipment.  Wash area with large amounts of cold water.  Neutralize acid with baking soda or household ammonia. Step 4. Test batteries for shorted cell(s) (see STE/ICE-R Test NG81). Step 5. Test alternator output voltage (see STE/ICE-R Test NG50). 6. BATTERIES OVERCHARGED (HIGH SPECIFIC GRAVITY READING). Test alternator output voltage (see STE/ICE-R Test NG50). 4-25