TM 9-2320-209-20-3-3 FRAME 2 1. Using 3/4-inch wrenches, unscrew and loosen capscrew (1) and nut (2). 2. Using 1 1/8-inch and adjustable 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 18-429