Massey Ferguson 0A.61.28 – Onboard diagnostic system: External Hydraulic Valve 6 Issue

Indicates a malfunction within the tractor's 6th external hydraulic remote valve (spool valve) circuit. Likely an electrical connection or actuator communication failure.

• 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

   Use a compatible Massey Ferguson diagnostic tool or interface device to confirm the presence of 0A.61.28 and check for any accompanying connection codes (like 0A.41.FF).

2. 2

   Locate External Hydraulic Valve 6 at the rear remote stack. Inspect the electrical connector and wiring harness leading to the valve's electronic actuator.

3. 3

   Check for loose connections, broken wires, or corrosion inside the connector pins, as connection problems are a primary cause for this family of codes.

1. 1

   Secure the Machine

   Turn off the tractor and relieve any hydraulic pressure in the system.

2. 2

   Repair Wiring/Connections

   Disconnect the electrical harness from External Hydraulic Valve 6. Clean the contacts with electrical contact cleaner. If any wiring is chafed or broken, repair the harness and securely reconnect it.

3. 3

   Replace Actuator/Valve (If Necessary)

   If the wiring is intact and the connection is secure but the fault persists, the electronic actuator on Valve 6 (or the valve assembly itself) has failed and must be replaced.

4. 4

   Clear Codes

   Access the diagnostic menu using your interface device and follow the on-screen prompts to clear the error codes.

5. 5

   Verification

   Start the tractor, operate the 6th hydraulic remote, and monitor the equipment's performance to verify that the issue is resolved and the code does not return.