TM 9-2320-361-10 2-32. OPERATION OF EARTH BORING AND POLESETTING MAINTENANCE TRUCKS (Contd) (b) Place transmission gearshift lever (13) in “1” (first) position and feed control lever (2) in neutral. (c) Move drive control lever (3) forward until derrick (1) is in position, and return control lever (3) to neutral. (6) To move derrick (1) left: (a) Place transmission gearshift lever (13) in “R” (reverse) position. (b) Move power leveler shifting handle (4) up and make sure feed control lever (2) is in neutral. (c) Move drive control lever (3) forward until derrick (1) is in position, and return control lever (3) to neutral. NOTE Always level boring machine with engine operating at idle speed. (7) For final leveling adjustment, turn horizontal (side-to-side) and vertical (front-to-back) leveling adjustments (6) and (7). 2-162