TM 9-2320-209-20-3-1 1. Using l/2-inch wrenches, unscrew and take out locknut (1) and bolt (2) from coupling (3) . 2. Using screwdriver and pliers, spread coupling (3) and slide coupling forward and away from muffler (4) . Throw gasket (5) away. GO TO FRAME 6 TA 047232 5-59