Case IH 30 – TMF / HITCH / ATC: Right Draft Pin voltage is outside the normal operating range

The controller is receiving a voltage signal from the right-hand draft load sensing pin that falls outside the expected parameters (often flagged during calibration if the voltage is not within spec for a 'no load' condition).

• Magnum
• Magnum Series
• MX Magnum Series
• Newer Magnum Series
• Puma Series
• Steiger Series

1. 1

   Inspect the wiring harness leading to the right draft pin for damaged, pinched, or broken wires.

2. 2

   Disconnect the sensor and check for moisture, water intrusion, or corrosion at the connector (a known issue on older Magnums).

3. 3

   Verify pin voltages at the RH draft pin sensor connector using a multimeter (Pin C: power, Pin B: signal, Pin A: ground). Check if the signal voltage is erratic or out of range.

4. 4

   Check hitch calibration status and ensure the pin is not under physical load during a 'no load' calibration step.

1. 1

   Lower hitch

   Lower the 3-point hitch and safely support any attached implement to remove physical load from the draft pins.

2. 2

   Disconnect sensor

   Disconnect the triangular electrical connector from the right draft pin sensor.

3. 3

   Remove hardware

   Remove the retaining hardware holding the right draft pin in the lower lift arm linkage.

4. 4

   Replace sensor

   Slide the defective draft pin out and install the new OEM draft pin sensor.

5. 5

   Reinstall hardware

   Reinstall the retaining hardware and plug in the electrical connector.

6. 6

   Calibrate hitch

   Perform the Hitch Calibration procedure via the tractor's display/monitor so the controller can learn the new sensor's 'no load' base voltage.

7. 7

   Locate connectors (Bypass Option)

   If the draft control feature is not needed, locate the triangular electrical connectors for the draft pins under the rear of the cab.

8. 8

   Unplug draft pin (Bypass Option)

   Unplug the defective right draft pin (and left, if doing both).

9. 9

   Install elimination module (Bypass Option)

   Plug the Draft Load Sensing Pin Elimination module directly into the tractor's harness.

10. 10

    Secure module (Bypass Option)

    Zip-tie the module securely out of the way.