TM 9-2320-209-20-3-1 c. Replacement. 1. Put exhaust elbow (1) and new gasket (2) over two studs on flange (3). 2. Screw two locknuts (4) on studs at inside of flange (3). 3. Put two bolts (5) through exhaust elbow (1) and flange (3). Screw on two locknuts (6). 4. Using 9/16-inch wrench, evenly tighten locknuts (6) on bolts (5) and locknuts (4) on studs of flange (3). GO TO FRAME 2 TA 047237 5-64