Massey Ferguson A.61.26 – Onboard diagnostic system: External Hydraulic Valve 6 Issue

The tractor's onboard diagnostic system has detected a malfunction, electrical connection problem, or abnormal operation specifically within the circuit of the 6th external hydraulic remote valve.

• 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 wiring harness and electrical connector at External Valve 6 for corrosion, broken wires, or loose connections

2. 2

   Check the hydraulic fluid level and inspect for contamination (dirty oil)

3. 3

   Inspect the hydraulic and transmission filters for blockages

4. 4

   Inspect the valve body for external leaks, damaged seals, or loose fittings

5. 5

   Check the hydraulic couplers and hoses for damage or blockages

6. 6

   Determine if the spool valve is physically sticking due to internal wear or debris

1. 1

   Relieve Pressure

   Turn off the tractor and actuate the hydraulic controls to relieve all pressure from the hydraulic system.

2. 2

   Clean the Area

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

3. 3

   Disconnect

   Unplug the electrical harness connector from External Valve 6. Disconnect the hydraulic hoses and lines attached to the valve.

4. 4

   Remove Valve

   Unbolt the faulty hydraulic valve from the valve stack or base plate.

5. 5

   Repair or Replace

   If minor leaking is the issue, the valve can sometimes be rebuilt with new O-rings and seals. If the internal spool is worn, the solenoid is dead, or the valve body is damaged, replace the entire valve assembly.

6. 6

   Reinstall

   Mount the new or rebuilt valve to the base plate/stack. Torque the mounting bolts to OEM specifications.

7. 7

   Reconnect

   Reattach the hydraulic lines and plug in the electrical harness.

8. 8

   Test and Bleed

   Top off the hydraulic fluid to the correct level. Start the tractor and operate the hydraulic remote to bleed air from the system. Check for leaks.

9. 9

   Clear Codes

   Use a compatible Massey Ferguson diagnostic tool to clear the A.61.26 / 0A.61.26 DTC from the system.