Troubleshooting for New Holland CX8080 Elevation A0052 Flow Sensor Being Out of Range

Troubleshooting the A0052 alarm code on a New Holland CX8080 Elevation combine involves a systematic approach to diagnose and resolve issues related to the yield sensor’s output voltage. Here’s a summary of the steps to follow:

Preparation:

1. Clean the Unit: Ensure the area related to the service instructions is clean.
2. Safety Measures: Park on a level surface, apply parking brake, lower attachments, relieve hydraulic pressure, shut down engine, and follow specific instructions.

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Service Instructions for UCM and CCM Controllers:

For Combines with UCM Controllers:

• Yield Sensor Part Numbers: 47696978, 84185506, and/or 47613138.
• No-Load Voltage Check: Use the combine’s diagnostics screen to check the yield sensor voltage with no crop passing through.
• Low No-Load Voltage (0.1V – 0.7V):
  • Check for trapped grain or debris around the yield sensor.
  • Ensure proper installation of mounting hardware.
  • Modify front counterweight bolt if necessary.
  • Adjust the no-load voltage using tool 84446103.
• Memorizing the No-Load Voltage: After adjusting, verify and memorize the voltage setting.
• High No-Load Voltage (Above 6.2V): Adjust using tool 84446103 and troubleshoot following E0343-03 error code instructions.

For Combines with CCM Controllers:

• Yield Sensor Part Numbers: 84185506 and 47613138.
• Low No-Load Voltage (0.1V – 0.7V): Follow the same steps as UCM controllers.
• High No-Load Voltage (Above 5.2V): Adjust using tool 84446103 and troubleshoot following E0288-03 error code instructions.

In High Grain Flow Conditions:

• If the display voltage exceeds the maximum (6.2V for UCM, 5.2V for CCM) despite correct no-load voltage, monitor the ‘Dry-Flow’ average and adjust the no-load voltage for additional sensor capacity.

Additional Steps:

1. EST Error Code History: Use Electronic Service Tool (EST) to retrieve and save the error code history.
2. EST Software Versions File: Retrieve and save the version information.
3. Provide CN1 File: From the USB key of the display, including details about the grower, farm, field, task, crop, estimated yield, header model, and size.

If Problems Persist:

• Technical Support: Enter an ASiST Technical Help Desk (THD) report with all gathered information.

Additional Resources:

• Refer to New Holland Trouble Repair for more repair cases and detailed procedures.

This structured approach should help in effectively diagnosing and resolving the A0052 alarm code issue related to the yield sensor on New Holland CX8080 Elevation combines.

More repair cases for New Holland machine,please refer to:New Holland Trouble Repair.