TM 9-2320-209-34-2-2 FRAME 14 Soldier A 1. Use ratchet wrench to turn horizontal leveling worm assembly until boring gear case (1) is horizontal. Refer to Operation of Earth Boring Machine and Pole setter Trucks, TM 9-2320-209-10. 2. Coat rack bar (2) with grease. Soldiers 3. Put chain hoist (3) on rack bar (2) as shown. Aand B WARNING When replacing rack bar (2), be sure it is balanced on chain hoist or it may fall causing damage to equipment and injury to personnel. NOTE Be sure rack bar (2) teeth are facing to the right as shown. Soldier A 4. Feed rack bar (2) in lower end of boring gear case (1) until it engages. GO TO FRAME 15 17-527