Massey Ferguson A.72.19: External Hydraulic Valve 7 Issue

Malfunction, electrical connection problem, or performance issue with the 7th external hydraulic remote valve (spool valve) in the tractor's hydraulic system.

• 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

   Check the hydraulic fluid (UTTO) level and condition. Look for contamination, metal shavings, or degraded oil.

2. 2

   Inspect the hydraulic filter for clogs or debris, which can restrict flow.

3. 3

   Check the electrical connections and wiring harness leading to External Hydraulic Valve 7 for loose connectors, blown fuses, or corroded wiring.

4. 4

   Inspect the valve block and remote couplers for external leaks, physical damage, or wear.

5. 5

   Test the valve for sticking or jamming, which can be caused by internal debris or heat increasing internal hydraulic leakage.

6. 6

   Check the system's hydraulic pressure to ensure the pump is delivering adequate flow to the valve block and that the relief valve is functioning correctly.

1. 1

   Relieve all hydraulic pressure from the system before starting work.

2. 2

   Disconnect the electrical harness connector from External Hydraulic Valve 7.

3. 3

   Place a bucket or drain pan underneath the valve block to catch any residual hydraulic fluid.

4. 4

   Disconnect the hydraulic hoses and lines attached to the valve.

5. 5

   Unbolt and remove the faulty hydraulic valve from the valve stack/manifold.

6. 6

   Clean the mounting surface and inspect the area for any debris.

7. 7

   Install the new external hydraulic valve (or rebuilt valve with new seals/O-rings) and torque the mounting bolts to the manufacturer's specifications.

8. 8

   Reconnect the hydraulic hoses and the electrical connector.

9. 9

   Refill the hydraulic fluid as needed and bleed the hydraulic system to remove any trapped air.

10. 10

    Start the tractor, allow the system to warm up, and test the remote valve's operation, checking for any leaks or returning fault codes.