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SAFETY PRECAUTIONS - TM-5-4210-230-14P-1_453
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LOW MAINTENANCE BATTERIES
TRUCK SERVICE MANUAL TM 5-4210-230-14&P-1 BATTERY CHARGING PRECAUTIONS Do not attempt to charge a battery unless you are thoroughly familiar  with  the  step  by  step  procedure  to  use.    Follow  the manufacturer's instructions on the charger.  If the instructions are no longer legible and you do not have literature containing the  instructions,  obtain  them  from  the  manufacturer  of  the charger.  Never use a charger without instructions. The   room   or   compartment   in   which   the   battery   is   being charged   should   be   well   ventilated.   Follow   precautions   to prevent  battery  explosion.    Explosive  mixtures  of  hydrogen gas  are  being  generated  during  battery  charging.    This  gas can  be  exploded  by  a  torch,  match  flame,  lighted  cigarette, sparks from loose connections or metal tools making contact between    the    terminals    or    the    ungrounded    terminal    and adjacent metal parts which are grounded. Always shield eyes when working around the battery . It is recommended that filler caps, where used, be left on the battery  during  charging.    Additionally,  a  wet  cloth  should  be placed over the battery and vent. DO   NOT   ATTEMPT   TO   CHARGE   A   FROZEN   BATTERY. Allow the battery to warm to 15.5°  C (60° F) before placing on charge. Always    turn    the    charger    to    the    "OFF"    position    before connecting  the  leads  to  the  battery.    If  you  have  any  doubts that   the   charger   is   actually   "OFF",   disconnect   it   from   the power source. Never  break  a  "live"  circuit  at  the  battery  terminals  or  touch the charger leads when the charger is "ON".  This could create a spark which could ignite the explosive gases in the battery. Always turn the charger "OFF" before removing a charger lead from the battery. EMERGENCY STARTING PRECAUTIONS Each   step   in   the   procedure   outlined   under   EMERGENCY (JUMPER) STARTING must be followed with extreme care to avoid (1) bodily injury due to a gush of electrolyte through the vents,   (2)   bodily   injury   of   damage   to   the   vehicles   due   to explosion   of   one   of   the   batteries,   or   (3)   damage   to   the electrical system of either or both vehicles. Wear safety glasses.  Never lean over the battery during the starting operation.  Follow precaution to avoid making a spark or bringing a flame near the battery. Fig.  1  Low Maintenance (Conventional) Battery DESCRIPTION The  storage  battery  is  an  electro-chemical  device.    It  stores chemical  energy  which  can  be  released  as  electrical  energy. When the battery is connected to an external load such as a starter, the chemical energy is converted into electrical energy and current flows through the circuit. The three main functions of the automotive battery are to: 1.    Supply  power  to  the  starter  and  ignition  system  so  the engine can be cranked and started. 2.      Supply   the   extra   power   required   when   the   vehicle's electrical  load  requirements  exceed  the  supply  from  the charging system. 3.    Act  as  a  voltage  stabilizer  in  the  electrical  system.    The battery     smoothes     out     or     reduces     temporarily     high voltages  (transient  voltages)  which  occur  in  the  vehicle electrical system.  This could occur in making or breaking a   circuit,   etc.      These   excessively   high   voltages   would damage  other  components  in  the  electrical  system  if  it were not for the protection provided by the battery.  The battery  partially  absorbs  and  greatly  reduces  these  peak voltages  and  protects  components  such  as  diodes  from being damaged. "Fleetrite"     and     "International"     batteries     are     available     in conventional (low maintenance) type (Figure 1) and maintenance    free    type    (Figure    2)    as    described    herein. CTS-2771  Page 4 PRINTED IN UNITED STATES OF AMERICA

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