TM 55-1930-209-14&P-11 Table C-1.  Preventive Maintenance Checks and Services for Equipment Monitoring System B - Before D - Daily Q -  Quarterly D - During W - Weekly S -  Semiannually A - After M - Monthly A -  Annually INTERVAL ITEM PROCEDURES EQUIPMENT ITEM TO BE CHECK FOR AND HAVE IS NOT READY/ NO. INSPECTED REPAIRED OR ADJUSTED AVAILABLE IF B   D   A   D  W  M   Q   S   A AS NECESSARY EQUIPMENT MONITORING SYSTEM (EMS) WARNING Be  sure  that  electrical  power  Is  OFF before   performing   any   maintenance on electrical systems. Redtag appropriate switches and circuit breakers  with:  "WARNING  -  DO  NOT ACTIVATE.    REPAIRS  BEING  MADE." Observe  all  safety  precautions  listed at the beginning of this manual. 1 All Components a. Wipe  clean  or  vacuum  major EMS    components    and    check    for loose   fitting   wires.      Use   insulated tools b. Allow   EMS   5   to   10   minutes warmup before operation c. Check for damage or corrosion.    Repair  touchup  paint  in accordance    with    TB    43-0144    as necessary.    Do  not  paint  threads  or labels d. Check  all  fasteners,  mounting hardware,  and  cable  attachments  for loose or missing components. Tighten    or    replace    as    necessary using insulated tools 2 Batteries WARNING Fumes from batteries may be flammable   and   explosive.      Do   NOT smoke    or    have    open    flame    when checking  or  working  on  battery  bank. Battery   electrolyte   presents   potential health hazards.  Contact with eyes and skin     should     be     avoided.          Safety glasses,    gloves,    and    rubber    aprons must    be    worn    when    handling    this chemical.  Electrolyte contains sulfuric acid which can cause severe bums and Is    highly    toxic    to    skin,    eyes,    and respiratory system. C-3