TM 9-2320-209-20-3-4 (2) Second reduction drive chain. FRAME 1 1. Put chain (1) in place. 2. Put detachable link (2) through ends of chain (1). 3. Put keeper (3) in place and put on clip (4). 4. Adjust second reduction drive chain. Refer to para 19-18. GO TO FRAME 2 19-93