Massey Ferguson 0A.6X.26 – Hydraulic/Transmission Control Module: External Hydraulic Valve 6 Issue

Indicates a fault, connection problem, or operational failure in the 6th external hydraulic remote/spool valve circuit.

• 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

   Check hydraulic/transmission fluid and filters for contamination, dirt, or debris

2. 2

   Inspect quick connect couplers on Valve 6 for wear or foreign matter

3. 3

   Inspect the external hydraulic valve block for visible fluid leaks

4. 4

   Test the hydraulic valve spool for sticking or jamming caused by debris or internal wear

5. 5

   Check the wiring harness and solenoid connections at Valve 6 for corrosion, loose pins, or broken wires

1. 1

   Relieve Pressure

   Turn off the tractor and cycle the hydraulic controls to relieve all pressure from the hydraulic system before beginning work.

2. 2

   Drain/Isolate Fluid

   Depending on the valve location, you may need to drain the hydraulic reservoir or isolate the fluid to prevent spills.

3. 3

   Disconnect Wiring and Hoses

   Disconnect the electrical harness connector from the Valve 6 solenoid. Disconnect the hydraulic hoses from the valve body.

4. 4

   Remove the Valve

   Unbolt the external hydraulic valve from the rear valve stack/block.

5. 5

   Clean and Inspect

   If attempting a rebuild, remove the spool from the valve block. Clean out any debris and inspect the spindle for wear or scoring. Replace worn O-rings.

6. 6

   Replace Components

   If the valve is heavily worn, electrically dead, or heavily scored, install a new external hydraulic spool valve assembly. Replace any worn quick-connect couplers.

7. 7

   Reassembly

   Bolt the new/rebuilt valve back into the stack. Reconnect the hydraulic hoses and the electrical harness.

8. 8

   Fluid and Filter Service

   Replace the hydraulic/transmission filter and top off the hydraulic fluid with clean, OEM-spec oil.

9. 9

   Test

   Start the tractor, check for leaks, and test the Valve 6 remote with an implement to ensure proper flow, pressure, and code clearance.