Massey Ferguson 0A.33.13 – Autotronic 5 (AUTO5): External Hydraulic Valve 3 Issue

A malfunction detected in the third external electrohydraulic spool valve (remote valve or SCV), typically caused by an electrical connection problem, a solenoid failure, or an internal mechanical fault preventing it from responding to operator inputs.

• 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
• 6480
• 6485
• 6700S
• 7499
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626

1. 1

   Inspect the LED indicators on the electronic valves at the rear of the tractor (solid red indicates power, green indicates an input command, flashing indicates a localized fault with Valve 3)

2. 2

   Test if the valve operates manually using the manual override levers. If it works manually but not via cab controls, the issue is electrical or electronic rather than a hydraulic pressure failure

3. 3

   Inspect the wiring harness and connectors leading to Valve 3 for damage, broken wires, or poor connections

4. 4

   Verify codes via the Autotronic display (turn key on, push and release clutch, hold down up arrow key) to pinpoint DC and TC error codes

1. 1

   Clean and Reseat Connections

   Disconnect the electrical harness to External Hydraulic Valve 3. Clean the contacts with electrical contact cleaner, check for broken wires, and firmly reseat the connector.

2. 2

   Spool Valve Detent Modification

   If applicable (e.g., on 7600 series), source and replace just the detents and modify them to fit to resolve mechanical sticking, saving the cost of a complete valve replacement.

3. 3

   Valve Replacement

   If the solenoid or internal electronics have failed, unbolt the faulty Valve 3 from the hydraulic block, disconnect and cap the hydraulic lines, and install the new valve assembly.

4. 4

   Clear Codes

   Use the Wintest diagnostic software or the tractor's onboard interface to clear the Autotronic 5 error codes and recalibrate the valve if necessary.