TM 55-1520-240-23-810-51REMOVE MAIN FUEL TANK FORWARD BOOST PUMP AND CHECK VALVE(Continued)10-51REMOVE CHECK VALVE27.Loosen locknut (56).28.With wrench on flats of tee (53), remove checkvalve (57) from tee.29.Remove packing (58). Plug tee.30.Remove locknut (56).FOLLOW-ON MAINTENANCE:NoneEND OF TASK10-253
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