Table 2-11.ItemNo.17IntervalBeforePreventive Maintenance Checks and Services for Pumping AssemblyModel 609-C.(continued)LocationItem toCheck/ServiceENGINE-CONTAir CleanerProcedureCheck air filter restrictiong a u g e i n d i c a t i o n . Ifindication is in or close tored band, notify unitmaintenance.18BeforeFuel FiltersNot Fully Mis-sion Capable if:R e s t r i c t i ongauge indicationis in red band.Drain water from primary fuelfilter by rotating knob onbottom of filter. When clearfuel is seen at drain hoseo u t l e t, turn knob in oppositedirection to stop flow. Repeatfor secondary fuel filter.C l a s s I , I I , orIII leak.Cracked ordamaged filter.2-48
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