NORAC UC4.5-BC Operator Manual - Manual (Page 49)

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The display is stuck at "Mot’n Dly" or "KP Stp 9" during an install or retune:
• The sensor may be reading off the boom. Try moving the sensor to a better location.
• The target may be too weak. Move the sprayer to a better location with either dirt or
gravel on the ground. Ensure there is no grass or other plants under the sprayer boom.
• The sensor may be out of range. Release the button and manually adjust the entire
boom to approximately 35 inches (90 cm) above the ground. Press and hold to
continue with the install or retune.
• It may be too windy outside too complete an Install or Retune. If the boom cannot stop
moving due to high wind conditions, the system cannot be properly calibrated.