0A.51.1F

Massey Ferguson 0A.51.1F: External Hydraulic Valve 5 Issue

Issue description

Indicates a malfunction, fault, or potential connection problem associated with the 5th external hydraulic remote valve (spool valve) on the tractor.

Applies to these machines

  • 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

Check the cause

  1. Use a compatible Massey Ferguson diagnostic tool to confirm the presence of 0A.51.1F and check for any other related codes (such as 0A.41.FF, which indicates a connection problem).

  2. Inspect the wiring harness, connectors, and pins leading to External Hydraulic Valve 5 for corrosion, damage, or loose connections.

  3. Do not clear the DTC immediately without addressing the root cause, as the fault will recur or could lead to further equipment damage.

Repair steps

  1. Locate valve

    Locate External Hydraulic Valve 5 at the rear remote valve stack.

  2. Repair wiring or connectors

    Repair or replace any damaged wiring or connectors found during the diagnostic inspection.

  3. Replace hydraulic valve

    If the wiring is intact and the valve solenoid is receiving the correct voltage/signal, the hydraulic valve itself (or its solenoid) may have failed internally and will need to be replaced.

  4. Connect diagnostic tool

    After repairing the connection or replacing the valve, connect the diagnostic tool to the tractor's onboard diagnostic system.

  5. Clear DTCs and verify

    Clear the DTCs and operate the hydraulic system to verify the fault code does not return.

Parts you might need

(3)
  • Hydraulic Spool/Distribution Valve

    3713928M5

    Alternative numbers: 3713928M4, 3902064M91. Fits 3600, 8100, and 8200 series tractors.

  • Single Hydraulic Remote Valve

    12012002

    Bolts to the lift cover; fits various older models (e.g., 200, 300 series).

  • Hydraulic Pump Control Valve Assembly

    1862486M96

    Manufacturer: Reliance (Aftermarket) / Massey Ferguson (OEM)

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