TM 9-2320-209-20-3-3 c. Replacement. (1) Truck M49A1C. Soldiers A and B Soldier A Soldier B Soldiers A and B 1. 2. 3. 4. 5. 6. GO TO FRAME 2 Put discharge pipe (1) in place. Hold up discharge pipe (1). Put in U-bolt (2). Using 9/16-inch open end wrench, screw on and tighten two nuts (3). Do steps 3 and 4 again for other three U-bolts (2). Do steps 1 through 5 again for other two discharge pipes (1). 18-84