TM 9-2320-209-34-2-2 1. Check that sleeve bearing (1) in the second reduction drive chain sprocket (2), eccentric bushing (3), and chain tightening bearing (4) in bracket (5) are not worn or damaged. IF BEARINGS OR BUSHING ARE DAMAGED, GO TO FRAME 5. IF BEARINGS OR BUSHING ARE NOT DAMAGED, END OF TASK 17-620