TM 9-2320-209-34-2-2 1. Loosen two cap screws (1) and take off rack carrier nut (2). 2. Take off four rack thrust plates (3) and thrust plate retainer (4). 3. Drain lubricant from boring gear case (5). Refer to LO 9-2320-209-12/1. GO TO FRAME 7 17-491