TM 10-3930-664-24 1. REMOVE  DRAIN  PLUG  (6)  AND  DRAIN  FUEL TANK.  DISCONNECT HOSES (1, 4). a. Place    shutoff    ball    valve    (3)    handle    in closed position. NOTE Fuel  tank  capacity  is  27  gallons.    It  will be necessary to drain tank in portions. b. Remove drain plug (6) and allow fuel tank to  drain  into  pan.    Install  drain  plug  when tank is empty. c. Tag and disconnect supply hose assembly (1)  from  elbow  (2)  and  allow  fuel  to  drain into pan. d. Tag and disconnect return hose assembly (4)  from  elbow  (5)  and  allow  fuel  to  drain into pan. 2. TAG AND DISCONNECT ELECTRICAL WIRING FROM FUEL LEVEL SENDER (7). 3. REMOVE FUEL TANK (11) FROM CHASSIS. WARNING Fuel tank is heavy and awkward.  Enlist the  help  of  an  assistant  during  removal to     prevent     injury     to     personnel     and damage to components. a. Remove three screws (8), six washers (9), and three lock nuts (10). b. Carefully   lift   fuel   tank   (11)   from   chassis and place on clean work surface. B.  CLEANING Clean  fuel  tank  and  related  components  in  accordance with paragraph 1-24. C.  INSPECTION 1. Inspect   fuel   tank   and   related   components   in accordance with paragraph 1-24. 3-74