Massey Ferguson 0A.7X.1E – Vehicle Control Module (VCM) or Transmission/Hydraulics ECU: External Hydraulic Valve 7 Issue

Indicates a malfunction, communication failure, or connection problem with the 7th external hydraulic remote valve (spool valve) on the tractor's hydraulic 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

   Inspect the wiring harness, pilot pressure control connections, and the main electrical plug going into External Valve 7 for corrosion, bent pins, or wire chafing

2. 2

   Perform an operational test to check if the rear remote responds sluggishly or fails to respond at all when commanded from the cab

3. 3

   Inspect the valve slice stack at the rear of the tractor for physical hydraulic fluid leaks or blown O-rings between the valve slices

1. 1

   Relieve hydraulic pressure

   Relieve all hydraulic pressure from the system before beginning work.

2. 2

   Disconnect battery

   Disconnect the negative battery cable.

3. 3

   Locate Valve 7

   Locate the rear hydraulic valve stack and identify Valve 7 (usually counted from the inside out or top to bottom depending on the stack configuration).

4. 4

   Disconnect electrical harness

   Disconnect the electrical harness connected to the electric spool slice.

5. 5

   Disconnect hydraulic lines

   Disconnect the hydraulic lines/hoses routed to the valve.

6. 6

   Remove faulty spool slice

   Unbolt the tie-rods holding the valve stack together and carefully remove the faulty spool slice.

7. 7

   Install repair kit or new slice

   If rebuilding, install the OEM repair kit (O-rings and seals). If replacing, install the new Electric Spool Slice.

8. 8

   Reassemble valve stack

   Reassemble the valve stack, torque the tie-rods to factory spec, and reconnect the hydraulic lines and electrical harness.

9. 9

   Program new spool slice

   The new electric spool slice must be programmed/calibrated to the tractor's ECU using a compatible Massey Ferguson diagnostic tool.

10. 10

    Clear DTCs and test

    Clear the DTCs and test the hydraulic remote for proper operation.