Controls - 30 HT220 Operator’s Manual Center Console CMW Item Description Notes 2. Conveyor direction control To dump spoil to the right, move to up position. To dump spoil to the left, move to down position. 3. Conveyor direction control (truck option) To dump spoil to the right, move to up position. To dump spoil to the left, move to down position. Optional 4. Conveyor speed control (truck option) To increase conveyor belt speed, turn clockwise. To decrease conveyor belt speed, turn counterclockwise. Optional 5. Conveyor speed control To increase conveyor belt speed, turn clockwise. To decrease conveyor belt speed, turn counterclockwise.