Massey Ferguson 0A.20.22 – HITCH, Dash, or Mid Mount Valve Module: External Hydraulic Valve 2 Issue

Malfunction in the tractor's second auxiliary hydraulic remote valve (spool valve) circuit, indicating a connection problem on a hydraulic valve or an issue with the spool position sensor value.

• 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

   Inspect the wiring harness and connectors leading to External Hydraulic Valve 2 for pushed pins, corrosion, or frayed wires.

2. 2

   Check the signal voltage of the spool position sensor on Valve 2 using a multimeter or diagnostic tool to ensure it is reading within the specified OEM range.

3. 3

   Verify that there is proper CAN communication between the Dash and the Mid Mount Valve Module/Hitch controller.

4. 4

   Use a compatible Massey Ferguson diagnostic interface to clear the code and cycle the hydraulic levers to see if the code returns actively.

1. 1

   Relieve Pressure

   Turn off the tractor and cycle the hydraulic remote levers to relieve all hydraulic pressure in the system.

2. 2

   Access the Valve Block

   Locate the rear external hydraulic valve stack (usually mounted at the rear lift cover or mid-mount depending on the loader configuration).

3. 3

   Disconnect Electrical

   Carefully unplug the electrical connector to the spool position sensor/solenoid for Valve 2.

4. 4

   Remove the Valve

   Unbolt the hydraulic lines (cap them to prevent contamination) and remove the mounting bolts securing Valve 2 to the hydraulic stack.

5. 5

   Replace or Rebuild

   Install the replacement spool valve or replace the faulty spool position sensor on the existing valve.

6. 6

   Reassemble

   Bolt the valve back into the stack, reconnect the hydraulic lines, and plug in the electrical connector.

7. 7

   Test

   Top off hydraulic fluid if any was lost, start the tractor, check for leaks, and use a diagnostic tool to clear the 0A.20.22 code.