Copyright Goodheart-Willcox Co., Inc. Heavy Equipment Power Trains and Systems 834 Machine Movement Machine High–Low Left Track F-N-R Right Track F-N-R Left Track H-N-L Right Track H-N-L Left Brake Right Brake 1st Speed Forward Low Forward Forward Low Low Released Released 2nd Speed Forward Low Forward Forward High High Released Released 3rd Speed Forward High Forward Forward Low Low Released Released 4th Speed Forward High Forward Forward High High Released Released 1st Speed Reverse Low Reverse Reverse Low Low Released Released 2nd Speed Reverse Low Reverse Reverse High High Released Released 3rd Speed Reverse High Reverse Reverse Low Low Released Released 4th Speed Reverse High Reverse Reverse High High Released Released Counter Rotate Left (1st) Low Reverse Forward Low Low Released Released Counter Rotate Left (2nd) Low Reverse Forward High High Released Released Counter Rotate Left (3rd) High Reverse Forward Low Low Released Released Counter Rotate Left (4th) High Reverse Forward High High Released Released Counter Rotate Right (1st) Low Forward Reverse Low Low Released Released Counter Rotate Right (2nd) Low Forward Reverse High High Released Released Counter Rotate Right (3rd) High Forward Reverse Low Low Released Released Counter Rotate Right (4th) High Forward Reverse High High Released Released Steer Right 1st—Sharp (A) Low Forward Neutral Low Neutral Released Applied Steer Right 1st—Sharp (B) Low Forward Neutral High Neutral Released Applied Steer Right 1st—Sharp (C) High Forward Neutral Low Neutral Released Applied Steer Right 1st—Gradual (A) Low Forward Neutral Low Low Released Released Steer Right 1st—Gradual (B) Low Forward Forward High Low Released Released Steer Right 1st—Gradual (C) Low Forward Reverse High Low Released Released Steer Left 1st—Sharp (A) Low Neutral Forward Neutral Low Applied Released Steer Left 1st—Sharp (B) Low Neutral Forward Neutral High Applied Released Steer Left 1st—Sharp (C) High Neutral Forward Neutral Low Applied Released Steer Left 1st—Gradual (A) Low Neutral Forward Low Low Released Released Steer Left 1st—Gradual (B) Low Forward Forward Low High Released Released Steer Left 1st—Gradual (C) Low Reverse Forward Low High Released Released Goodheart-Willcox Publisher Figure 24-27. The Case1150B-E and 1450B track loaders and dozers use five mechanical levers and two brake pedals for controlling the speed, direction, and steering of the machine. For the “Steer Right 1st—Sharp (A), (B), and (C)” movements, the right steering brake is applied and the left track’s speed is incrementally increased from “Machine low/Left track low” (A), to “Machine low/Left track high” (B), and to “Machine high/Left track low” (C). For the “Steer Right 1st—Gradual (A), (B), and (C)” movements, the steering brakes are released, but the right track’s speed is initially in “Neutral” (A), then the left track is placed in “High” while the right track is in “Forward” (B), and finally the left track is in “High forward” while the right track is in “Low reverse” (C). Note that this table lists only a portion of the different possible control combinations.