Massey Ferguson A.22.2A – Hydraulic Control Module / Implement Control ECU: External Hydraulic Valve 2 Issue

Malfunction within the second rear hydraulic remote valve (spool valve). The underlying condition is typically an electrical connection problem on the hydraulic valve, a jammed spool, or an out-of-range value from the spool position sensor.

• 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 the Code: Use a compatible Massey Ferguson diagnostic tool to confirm the active DTC and check for related codes (e.g., spool position sensor value errors).

2. 2

   Visual Inspection: Locate External Hydraulic Valve 2 in the rear remote valve stack. Inspect the wiring harness and electrical connector for corrosion, pushed-out pins, or physical damage.

3. 3

   Mechanical Check: Ensure the spool valve is not physically jammed by debris and that the pilot pressure control is functioning.

4. 4

   Sensor Test: Check the spool position sensor connection and verify its voltage/resistance values against OEM specifications.

1. 1

   Depressurize the System

   Safely park the tractor on level ground, turn off the engine, and actuate the hydraulic levers/controls to relieve all hydraulic pressure from the system.

2. 2

   Disconnect Power

   Disconnect the tractor's battery to prevent electrical shorts during the repair.

3. 3

   Access the Valve Stack

   Clean the area around the rear hydraulic remote valves thoroughly to prevent dirt from entering the hydraulic system.

4. 4

   Remove the Faulty Valve

   Disconnect the electrical harness from External Hydraulic Valve 2. Unbolt the specific electric spool slice from the hydraulic valve block assembly.

5. 5

   Install the New Valve

   Install the replacement electric spool slice, ensuring all O-rings and seals are properly seated. Torque the mounting bolts to OEM specifications.

6. 6

   Reconnect and Reassemble

   Reconnect the electrical harness to the new valve and reconnect the battery.

7. 7

   Calibration

   A newly installed electric spool slice must be programmed and calibrated to the tractor's ECU using a Massey Ferguson diagnostic interface.

8. 8

   Test

   Start the tractor, check for hydraulic leaks, and operate the remote valve to ensure the fault code is cleared and the implement responds correctly.