A.31.19

Massey Ferguson A.31.19: External Hydraulic Valve 3 Issue

Issue description

Indicates a fault or potential issue specifically within the third external hydraulic remote valve (spool valve 3). May be triggered by an electrical fault, a sticking valve, or a communication error with the valve's solenoid.

Applies to these machines

  • 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

Check the cause

  1. Retrieve and verify codes using a diagnostic tool to confirm A.31.19 and check for related electrical codes (such as 0A.41.FF)

  2. Inspect the wiring harness and electrical connectors going to External Hydraulic Valve 3 for corrosion, damage, or loose connections

  3. Check the physical spool valve for external hydraulic fluid leaks or signs that the valve is sticking in one direction

Repair steps

  1. Locate External Hydraulic Valve 3

    On many Massey Ferguson models, the remote valve block is mounted directly on the lift cover under the seat.

  2. Address electrical issues

    If the issue is electrical (wiring/solenoid), repair the connection or replace the faulty solenoid.

  3. Remove the valve

    If the valve is leaking or sticking mechanically, remove the valve from the hydraulic block.

  4. Rebuild or replace the spool valve

    Rebuild the spool valve using an OEM repair kit (replacing the internal seals) or replace the entire 3rd spool valve assembly if the internal bore is damaged.

  5. Reinstall and clear codes

    Reinstall the valve, reconnect the ½” ISO 5675 quick couplers, and clear the DTCs using a diagnostic tool.

Parts you might need

(7)
  • Massey Ferguson Spool Valve Repair Kit

    3176423M91

    Used for restoring hydraulic functionality to leaking or sticking spool valves

  • 3rd Spool Valve Assembly

    3582518M1
  • External Hydraulic Valve Block

    357018A

    Reference for the block the hoses connect to

  • Hose Connector Kit (for external hydraulic valve)

    H10167

    Aftermarket kit for connecting hydraulic hoses to the valve block

  • ½” ISO 5675 female quick couplers

    Generic part

  • NBR/FPM spool valve seals

    Generic part

  • Replacement hydraulic oil filters

    Generic part

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