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OPERATING   PORTABLE   FIRE   EXTINGUISHER
GAS  FILTER  REPLACEMENT  UNITS

TM-9-2350-238-10 Semi Trailer Tank 5000-Gallon Fuel Dispensing Automotive M969A 2 (NSN 2330-01-377-9337) Manual
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TM   9-2350-238-10 OPERATION   OF   AUXILIARY   EQUIPMENT–CONTINUED OPERATING  GAS-PARTICULATE  FILTER  UNIT–CONTINUED 1 2 3 4 5 6 7 CREW    GAS-PARTICULATE Check  that  each  hose  assembly  (1)  is securely   attached   to   quick-disconnect outlet  (2)  on  side  of  air  purifier  (3). Check   that   electrical   power   cable   (4)   is securely   connected   to   connector   on   back of  air  purifier  (3). Check   that   unused   quick-disconnect outlets  (2)  on  air  purifier  (3)  are  covered with   air   flow   control   caps   (5). Check   that   MASTER   switch   (6)   on driver’s   instrument   panel   is   in   ON position. Put   on   protective   mask   and   adjust facepiece   (7). Slide   spring   clip   (8)   off   air   intake   holes   in air  purifier  (3)  until  openings  are  com- pletely  uncovered. Set   AIR   PURIFIER   switch   (9)   to   ON. NOTE Make   sure   air   purifier   is operating   by   placing   hand   near 8 9 10 11 FILTER   UNIT dust   outlets   on   end   plate   of   unit and   detecting   a   small   but noticeable   flow   of   air. Remove  air  hose  (1)  from  holding  clip (10)  and  couple  to  canister  (1  1  )  of  pro- tective   mask. Reverse   above   steps   when   stopping   gas- particulate   filter   unit. Record   duration   of   any   chemical   attack and  type  of  agent  used. Do  not  remove  contaminated filters   from   filter   unit.   Notify NBC  unit  maintenance  officer assigned   to   remove   and   dispose of   contaminated   filters. Compute   remaining   protective   capability of   filter   unit.   Refer   to   chart   on   page 2-96.   Notify   NBC   unit   maintenance   per- sonnel   when   100   replacement   units   have been   used. 2-95







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