Calibration Procedures—When to Calibrate

This list shows all possible calibrations. Depending on machine options and header types, listing shown might not match calibration menu shown on display.

NOTE: Error codes show on display if a problem exists during a calibration procedure. Conditions causing error must be corrected before continuing calibration.

• Amber Flashers - Perform calibration;
  • When control unit RC1, Amber Flasher bulbs, or associated components are replaced/adjusted.
• Corn Head Deck Plate Spacing - Perform calibration;
  • When control unit LC1, folding corn head wing position sensor, deck plate position sensor or associated components are replaced/adjusted.
• Feeder House Raise Speed - Perform calibration;
  • If control unit LC1 has been replaced.
  • First time each header is connected to combine.
  • If attachments of significant weight are added to or removed from header.
• Feeder House Fore/Aft Tilt Range (If Equipped) - Perform calibration;
  • When control unit LC1, or control unit CAB, or feeder house tilt fore/aft position sensor, or associated components are replaced/adjusted.
• Feeder House Tilt Range (If Equipped) - Perform calibration;
  • If control unit LC1 has been replaced.
  • If feeder house lateral tilt sensor or associated components are replaced/adjusted.
  • Before connecting header to combine.
• Feeder House Tilt Speed (If Equipped) - Perform calibration;
  • If feeder house lateral tilt sensor or associated components are replaced/adjusted.
  • Before connecting header or first-time header is connected to combine.
• Header - Perform calibration;
  • If control unit LC1 has been replaced.
  • If a header height control sensor or associated components are replaced/adjusted.
  • First time each header is connected to combine.
• NOTE: Mass Flow Vibration calibration must be performed when changing headers and in every crop that is harvested.
  Mass Flow Vibration (If Equipped) - Perform calibration;
  • When control unit AYM or associated components are replaced/adjusted.
• Moisture Sensor Temperature (If Equipped) - Perform calibration;
  • When control unit AYM or associated components are replaced/adjusted.
• Shoe Chaffer Position - Perform calibration;
  • When control unit LC2, chaffer element, or chaffer actuator has been replaced/adjusted or louver openings are out of adjustment.  See your John Deere dealer or qualified service provider for factory calibration procedure.
• Shoe Sieve Position - Perform calibration;
  • When control unit LC2, sieve element, or sieve actuator has been replaced/adjusted or louver openings are out of adjustment.  See your John Deere dealer or qualified service provider for factory calibration procedure.

• IMPORTANT: Calibration should not be completed with round bar concave covers installed. An incorrect zero position will result.

  Threshing Clearance - Perform calibration;
  • When control unit LC2, threshing clearance sensor, or associated components are replaced/adjusted.
• Unloading Auger Engage - Perform calibration;
  • When control unit RC2, unloading auger belt or associated components are replaced/adjusted.
• Wing Position (Folding Corn Head) - Perform calibration;
  • When control unit LC1, folding corn head wing position sensor or associated components are replaced/adjusted.
• NOTE: Yield calibration must be performed every year and in every crop that is harvested to achieve accurate grain weight measurements. Also verify that mass flow vibration calibration has been performed for each crop.

  Refer to Yield Calibration in CommandCenter™ Display Screens section for more information.

  
  Yield (If Equipped) - Perform calibration when control unit AYM or associated components are replaced/adjusted.
  • Limited Accuracy - user calibration procedure has not been performed. System defaults to a fixed internal calibration value which is not adjustable.
  • Medium Accuracy - user has collected and selected one to three loads. System uses these values to adjust the internal calibration value.
  • Highest Accuracy - user has collected and selected a minimum of four calibration loads. System uses these values to adjust the internal calibration value. NOTE: 13 load identification numbers can be saved before memory is full and a load identification number must be deleted.