New Holland 5010 – Rear PTO control system: Rear PTO Shift Motor Open Circuit

The fault code indicates an open circuit in the rear PTO shift motor system. This means the electrical current cannot complete its path to the motor responsible for engaging and disengaging the rear Power Take-Off (PTO). This interruption is typically caused by a broken wire, a loose or damaged connector, or a faulty internal component within the PTO shift motor itself.

• T7.170
• T7.185
• T7.200
• T7.210
• T7.220
• T7.235
• T7.250
• T7.260
• T7.270

1. 1

   Visually inspect the wiring harness leading to the rear PTO shift motor for chafing, melting, or breaks, especially where it rubs against the chassis.

2. 2

   Disconnect and inspect the electrical connectors for the PTO shift motor and any intermediate connectors for corrosion, bent, or broken pins.

3. 3

   Using a multimeter, verify that the PTO shift motor is receiving the correct voltage when the PTO is commanded on, and check for a good ground connection. A wiring diagram for the specific tractor model is highly recommended for this step.

4. 4

   With the power off, perform a continuity test on the wires between the control module and the PTO shift motor to confirm there are no breaks.

5. 5

   Test the internal windings of the PTO shift motor for continuity to determine if the motor itself has failed.

1. 1

   Prepare machine for service

   Park the tractor on a level surface, turn the engine off, engage the parking brake, and disconnect the battery before beginning any electrical repairs.

2. 2

   Access the PTO shift motor

   Locate the rear PTO shift motor, typically found on the rear axle housing on T7 series tractors. Remove any protective covers or components required for access.

3. 3

   Repair damaged wiring

   If a broken wire or damaged connector was identified during diagnostics, repair it using appropriate splicing techniques and weatherproof connectors to prevent future issues.

4. 4

   Replace the PTO shift motor

   If the motor's internal windings failed the continuity test, unbolt the old motor, disconnect the electrical connector, and install the new motor in its place.

5. 5

   Reassemble and test

   Reconnect the battery and reassemble any covers or components that were removed. Start the tractor and operate the rear PTO to ensure the fault code does not reappear and the PTO functions correctly.