TM 9-2320-209-34-2-2 1. Use ratchet wrench to turn horizontal leveling worm assembly until boring gear case (1) is vertical. Refer to Operation of Earth Boring Machine and Pole setter Trucks, TM 9-2320-209-10. 2. Loosen two cap screws (2). 3. Take off rack carrier nut (3) and spacers (4). 4. Note and record thickness of spacers (4) for use during replacement. Throw away spacers. GO TO FRAME 5 17-489