(1) Replace manhole cover on tank.(2) Position hooks (4) on tank rim and tightennuts (2).(3) Close cover (10), drop hinge (15) intoposition, and lock cam (7).4-42. Pump Porta. General. A pump port (55 gallon plug) coverassembly (10, fig. 4-27) is provided so that a handpump may be used.b . S e r v i c e . R e m o v e p u m p p o r t c o v e r a n dexamine gasket. Replace if defective.4-43. Drain Valve Assemblya. General. A drain valve assembly is providedfor draining accumulated water from the tanks.b. Removal.(1) Remove manhole cover (para 4-41).( 2 ) I n s u r e t h a t t a n k h a s b e e n c o m p l e t e lydrained and flushed thoroughly to remove fumesand fuel before entering tank.(3) Enter tank through manhole opening.(4) Refer to figure 4-29 and loosen setscrew(5).Figure 4-29. Drain valve, exploded view.4-41
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