Massey Ferguson A.71.13: External Hydraulic Valve 7 Issue

Indicates a fault, often an electrical connection problem or operational failure, with the 7th external hydraulic remote control valve on the tractor.

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

1. 1

   Verify terminal settings: If equipped with a Datatronic 5 terminal, navigate to the hydraulics page to verify the status, flow settings, and naming of Valve 7.

2. 2

   Inspect electrical connections: Check the wiring harness and electrical connector at External Valve 7 for corrosion, loose pins, or frayed wires.

3. 3

   Check fluid and filters: Check the Universal Tractor Transmission Oil (UTTO) fluid level and condition. Inspect hydraulic filters for contamination (metal shavings or dust) which can cause valve spools to stick.

1. 1

   Safety First

   Lower all hydraulic implements to the ground. Disconnect the negative cable from the battery so the system cannot be accidentally energized.

2. 2

   Clean the Area

   Thoroughly clean the area around the rear remote valves to prevent dirt from entering the hydraulic system during disassembly.

3. 3

   Electrical Repair

   Disconnect the electrical plug to Valve 7. Clean the contacts with electrical contact cleaner. If the harness is damaged, splice in a new connector or replace the harness section.

4. 4

   Valve Replacement

   If mechanically failed: Relieve any residual hydraulic pressure. Disconnect the hydraulic lines/hoses attached to Valve 7. Unbolt the valve body from the remote stack. Install the new external hydraulic valve, ensuring all O-rings and seals are properly seated and lubricated with clean UTTO fluid. Torque the mounting bolts to OEM specifications.

5. 5

   System Maintenance

   Replace the hydraulic filter (recommended every 300–500 hours) and top off the system with fresh UTTO fluid (e.g., 10W40 hydraulic fluid).

6. 6

   Clear Codes

   Reconnect the battery, start the tractor, and use a compatible Massey Ferguson diagnostic tool to clear the A.71.13 DTC from the system.