Massey Ferguson 08.00.50 – HITCH: Issue With Signal From Rear Hitch Right Draft Pin (HITCH)

The control module has detected an erratic, missing, or out-of-range signal voltage from the right-side draft pin sensor.

• 7724S
• 5712SL
• 7722
• 7722S
• 5713SL
• 7720S
• 7716
• 7718
• T4
• 7715
• 5710SL
• 7726
• 7726S
• 5711SL
• 7718S
• 7719
• 7714
• 7716S
• 7720
• Tier 4 (2015-2021)
• 7715S
• 7724
• 4707
• 4708
• 4709
• 4710
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626

1. 1

   Inspect the wiring harness and connector leading to the right draft pin for moisture intrusion, corrosion, chafing, breaks, or loose connections.

2. 2

   Verify pin voltages at the harness connector (Pin C: Power supply, Pin B: Signal input, Pin A: Ground).

3. 3

   Perform a swap test by temporarily swapping the left and right draft pin sensor connectors. If the fault code changes to 08.00.51, the sensor has failed internally. If it remains 08.00.50, the issue is in the wiring harness or HITCH module.

1. 1

   Relieve Pressure

   Lower the rear 3-point hitch completely to the ground to remove all mechanical load and pressure from the lower link draft pins. Turn off the tractor and apply the parking brake.

2. 2

   Disconnect Electronics

   Unplug the electrical connector from the right draft pin sensor. Ensure the harness side is clean and dry.

3. 3

   Remove the Pin

   Remove the retaining hardware (usually a locking bolt or retaining pin) that secures the draft pin to the lower link bracket.

4. 4

   Extract the Sensor

   Slide the old draft pin sensor out of the housing. You may need to gently tap it out if it is seized with dirt or rust.

5. 5

   Clean the Bore

   Thoroughly clean the mounting bore and linkage eye to ensure the new pin slides in smoothly and seats correctly.

6. 6

   Install the New Sensor

   Insert the new draft pin sensor, aligning the retaining hole. Secure it with the retaining hardware.

7. 7

   Reconnect and Seal

   Reconnect the electrical harness. Apply dielectric grease if recommended by the service manual to prevent future moisture intrusion.

8. 8

   Calibration

   After replacing a draft pin sensor, the electronic draft control system typically requires a recalibration via the tractor's diagnostic interface or in-cab terminal to learn the new sensor's zero-load baseline.