Massey Ferguson A.82.19: External Hydraulic Valve 8 Issue

Malfunction, pressure irregularity, or electrical fault associated with the 8th external hydraulic remote/spool valve on 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

   Verify hydraulic routing to ensure the hydraulics are properly set for the external hydraulic circuit rather than the three-point linkage.

2. 2

   Inspect the external hydraulic valve block and quick couplers for visible fluid leaks, which often point to failed O-rings.

3. 3

   Test the hydraulic pump pressure by installing a 5000 psi (45.6 kPa) test gauge at the provided test connections to check the relief valve.

4. 4

   Check the hydraulic oil filter element (e.g., 25-micron spin-on filter) for clogs that could restrict flow to the spool valves.

1. 1

   Relieve Pressure & Drain

   Relieve all hydraulic pressure. You can pump out the hydraulic reservoir through the valve (using a bucket) or leave the hoses in and collect the fluid at the end of the hoses.

2. 2

   Disconnect Lines

   Disconnect the supply hose from the hydraulic cover plate and the outlet hose to the linkage spool valve.

3. 3

   Disconnect Controls

   Separate the control cables or mechanical linkages of the supports and spool valves.

4. 4

   Remove the Valve

   Remove the locknuts located at the ends of the spool valve set to free the valve block.

5. 5

   Rebuild the Valve

   If rebuilding, remove the side cover screws to access the internal O-rings, springs, and balls. Replace all seals using an OEM spool valve repair kit.

6. 6

   Reinstall and Test

   Reinstall the valve, reconnect all hoses and cables, refill the hydraulic fluid, and use a 5000 psi test gauge to verify that the relief valve is operating at the correct pressure. Clear the DTC using a diagnostic tool.