TM 9-2320-209-20-3-3 (2) Front discharge valve cable. FRAME 1 1. 2. Working under front of tank using 13/16-inch wrench, hold split nut (1). Using 7/8-inch wrench,unscrew and slide back thimble (2). Take off split nut (1). Pull end of cable (3) out of thimble (2) and through hole in front discharge valve lever (4). Take thimble (2) off cable (3). GO TO FRAME 2 3. 18-282