TM 9-2320-209-20-3-3 FRAME 2 1. Using 3/4-inch wrench, hold capscrew (1). Using 3/4-inch wrench, loosen nut (2). 2. Using 1 1/8-inch open end wrench and 2-inch open end wrench, hold chain tightening shaft (3) and turn eccentric bushing (4) until first reduction drive chain (5) and second reduction driven chain (6) are loose. GO TO FRAME 3 18-423