TM 9-2320-209-20-3-4 FRAME 2 1. Put gasket (1) over end of flexible shaft assembly (2) and press into coupling nut (3). 2. Put square end of flexible shaft assembly (2) into tachometer (4) and screw on coupling nut (3). Using /4-inch wrench, tighten nut. GO TO FRAME 3 22-14