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LOW MAINTENANCE AND MAINTENANCE FREE TYPES
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BATTERY CHARGING PRECAUTIONS
TRUCK SERVICE MANUAL TM 5-4210-230-14&P-1 SAFETY PRECAUTIONS BATTERIES CAN EXPLODE ! Batteries  generate  explosive  gases.  Keep  sparks, flames, burning cigarettes or other ignition sources away at all times. BATTERIES CONTAIN SULPHURIC ACID! Sulfuric acid is poison and can cause severe burns. No one should work near a battery either in a vehicle or on the bench, without knowing and observing the safety precautions described in this manual. Service     personnel     should     be     familiar     with     the     proper procedures  to  be  used  before  attempting  to  test  or  charge  a battery   or   to   "jump"   start   a   vehicle   having   a   discharged battery. The  equipment  manufacturer's  instructions  must  be  followed when  any  equipment  such  as  a  battery  charger  or  tester  is used. DANGER OF EXPLODING BATTERY Hydrogen   and   oxygen   gases   are   produced   during   normal battery  operation.    These  gases  escape  through  the  battery vents   and   may   form   an   explosive   atmosphere   around   the battery if ventilation is poor.  Explosive gases may continue to be present in and around the battery for several hours after it has been charged. To prevent ignition of gases within the battery sparks, flames or  other  ignition  sources  should  be  kept  well  away  from  the battery. Be   careful   that   tools   or   other   metallic   objects   do   not   fall across   the   battery   terminals   or   between   the   ungrounded terminal  and  any  adjacent  metallic  part  which  is  grounded. Do   not   break   "live"   circuits   at   the   terminals   of   batteries because a spark usually occurs at a point where a "live" circuit is broken.  Make certain the charger cable clamps or booster leads   are   clean   and   making   good   connections.      A   poor connection can cause an electrical arc which could ignite the gas mixture and explode the battery. Anyone  in  the  vicinity  of  the  battery  when  it  explodes  could receive  injuries,  including  eye  injury  from  flying  pieces  of  the case or cover or acid thrown from the battery. IMPORTANT Do  Not  smoke,  strike  a  match  or  bring  any  other flame   into   the   vicinity   of   the   battery.      The   eyes must   be   shielded   when   working   near   a   battery. Never  lean  over  a  battery  during  charging,  testing or "jump starting" operations. HANDLING BATTERY ACID Use   extreme   care   to   avoid   spilling   or   splashing   battery electrolyte  (which  is  diluted  sulfuric  acid)  as  it  can  destroy clothing and burn the skin.  When working with acid, such as filling  batteries,  wear  safety  goggles.    Protective  clothing  is advisable. Do not place a battery or acid within the reach of children. Electrolyte splashed into the eyes is extremely dangerous.  If this should happen, force the eye open andflood it with cool, clean  water  for  approximately  five  minutes.    A  doctor  should be called immediately. If acid (electrolyte) is taken internally, drink large quantities of water  or  milk.    Follow  with  milk  of  magnesia,  beaten  egg  or vegetable oil.  Call physician immediately. If electrolyte is spilled or splashed on clothing or the body, or any     surface     of     the     vehicle,     it     should     be     neutralized immediately  with  a  solution  of  baking  soda  and  water  and then rinsed with clean water. If  it  becomes  necessary  to  prepare  electrolyte  of  a  desired specific  gravity,  always  pour  the  concentrated  acid  into  the water--do this slowly-never pour water into acid.  A dangerous "spattering"   of   the   liquid   would   result.      This   is   caused   by extreme heat which is generated whenever water is mixed with strong  acid.    Stir  the  liquid  continually  while  acid  is  being added. When  handling  a  plastic  cased  battery,  excessive  pressure placed   on   the   end   walls   could   cause   electrolyte   to   spew through the vents.  Therefore, always use a battery carrier to lift   these   batteries   or   lift   them   with   your   hands   placed   at opposite corners. CTS-2771  Page 3 PRINTED IN UNITED STATES OF AMERICA

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