ARMY TM 9-6115-642-10 AIR FORCE TO 35C2-3-455-11 MARINE CORPS TM 09247A/09248A-10/1 2-22 OPERATION    WHILE    IN    CON-    TAMINATED AREAS.   The generator set is capable of being operated by   personnel   wearing   nuclear,   biological,   or   chemical (NBC)     protective     clothing     without     special     tools     or supporting equipment. Refer to FM 3-5, NBC Decontamination    for    information    on    decontamination procedures.    Specific  procedures  for  the  generator  set are the following: a. Control    panel    indicators    sealing    gasket, rubber  sleeves,  and  rope  draw  cords  at  output  terminal access  ports,  control  panel  door  gaskets,  access  door gaskets,   rubber   tubing,   and   belts   within    the    engine compartment,  coverings  for  electrical  conduits,  external water    drain    tubing,    and    retaining    cords    for    slave receptacle    covers    will    absorb    and    retain    chemical agents. Replacement of these items is the recommended method of decontamination. b. Lubricants,   fuel,   coolant,   or   battery   fluids may be present on the external surfaces of the generator set  or  components  due  to  leaks  or   normal   operation. These  fluids  will  absorb  NBC    agents.    The    preferred method    of  decontamination  is  removal  of  these  fluids using conventional decontamination methods in accordance with FM 3-5. c. Continued decontamination of external generator set surfaces with supertropical bleach (STB)/decontamination    solution    number    2    (DS2)    will degrade clear plastic indicator coverings to a point where reading indicators will become impossible.  This problem will become more evident for soldiers wearing protective masks. Therefore, the use of STB or DS2 decontamination   in   these   areas   should   be   minimized. Indicators  should  be  decontaminated  with  warm  soapy water. d. External    surfaces    of    the    control    panel assembly   that   are   marked   with   painted   or   stamped lettering will not withstand repeated decontamination with STB    or    DS2    without    degradation    of    this    lettering. Therefore, the recommended method of decontamination   for   these   areas   is   with   warm   soapy water. e. Areas that will entrap contaminants, making efficient  decontamination  extremely  difficult,  include  the following: (1)     Exposed heads of screws. (2)     Areas adjacent to and behind exposed wiring conduits. (3)     Hinged areas or access doors. (4)     Retaining chains for external receptacle covers. (5)     Areas around the tie-down/lilting  rings, crevices around access doors, external screens covering ventilation  areas,  the  external  oil  drain  valve,  and  areas adjacent to the external fuel drain valve. (6)     Areas  behind  knobs  and  switches  on the control panel, externally mounted equipment specification   data   plates,   external   receptacle   covers, access doors, access door locking mechanisms, recessed  wells  for  access  door  handles,  fuel  cap,  load terminal board, slave receptacles, and frequency adjustment controls. Replacements    of    these    items,    if    available,    is    the preferred     method     of     decontamination.     Conventional methods  of  decontamination  should  be  used  on  these areas,  while  stressing  the  importance  of  thoroughness and the probability of some degree of continuing contact and vapor hazard. f. In  an  NBC  contaminated  environment,  the generator  set  should  be  operated  with  all  access  doors closed to reduce the effects of contamination. g. The  use  of  overhead  shelters  or  chemical protective    covers    is    recommended    as    an    additional means of protection against contamination in accordance with FM 3-5. However, if using covers, care should  be  taken  to  provide  adequate  space  for  air  flow and exhaust. h. For additional NBC information, refer to FM 3-3    and    FM    34.        Other    services    use    applicable publications for NBC. Change 2  2-35