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         is when we disturb Cabinets and shelves in     naintonance areas.
         Scorpions biaila nests and are disturbed. Th.y can alnost cl~ o~t
         of a 3~lb ooffee Can, but the bite is no worse than a bee sting.

         S.  1~i~

             a.  Xi~n~

                 I.   Tilt~r Froblp;ps

                      * ~ittrs.       M~ ~.          Zf running on `. roc~
         or gravel Surf5ce5~ expect to service the air cloaners *v~:y 150
         ailes.  Zf the surface is bro)~n up and "powdery", the air cleaners
         ~ight  have  to be changed every  43-50 miles.   Zf the tank   is
         directly in the ~st cloud 0£ a leading vehicle in like a ccn~y
         mode, the trailing vahicle could req~ire a filter change ~n as few
         as 4 ailes or lS-2O ainutes of oporatio~.

                      * 60 very careful when changing filters. Znsure that
         no contazainants are accidentally dropped (even dust off the shoe
         of a crew ~r) into the air box.

                      * riltors should be cleaned with c'oaprese~d air1 ~ing
         a no::le On the end 0£ a hose that is inserted into the open end
         of  the   filter, blowing  the   du8t  off  the  outaLde  surface
- -      (backflushing).   The no::le is wor)~d bao)c and forth across the
         filter ~edia until enou~ dust is blown o~f to red~~ce the weight
         0£ the filter to approxintely 41 Ins.     Do not bang the filt.rs
         against the ~~~icIe to try to get the ~st off, or nsh the redia
         as this ~y ~se a leaching of the fire retardant chemicals within
         the ~edia.   The filters are never returned to initial conditions
         after cleaning, sinoo more and aore dust is tripped deep within the
         nedia fibers   ~ reco=mend cleaniaq the filters a total of 6 times
         before replacing them with n~w filters.

               an n~r¶~ note: The Zsra~1is bought what was the o~iva1ant
                              of a 3-year peacetime supply of air cleaners
                              for all their ~hicles ~ust prior to invading
                              L~banon, back in L982.

                 2.   ~el Filters.   One of the things to check if engine
         ezhibit~ power loss.   Check for sand,   also f~~gi growth d~e to
         where the tank was before it was shipped.

                 3.   ~c rilters.   Few problems.  Service life of sevoril
         thousand miles ~for. service light.  ~4ore on tho ~u~C syst~ Later.


                                       1-3

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