A.80.12

Massey Ferguson A.80.12: External Hydraulic Valve 8 Issue

Issue description

Indicates a fault, malfunction, or connection issue within the circuit or mechanical operation of the 8th external hydraulic remote valve.

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. Verify the hydraulic fluid (UTTO, e.g., 10W40) is at the correct level and check if the fluid is dark, smells burnt, or has a milky appearance indicating water contamination.

  2. Inspect the hydraulic filter for partial blockages or metal shavings that could restrict flow to the valve.

  3. Visually inspect the external hydraulic valve, hoses, couplers, and seals for external leaks or seeps that could cause a pressure drop.

  4. Use a hydraulic gauge to test the system pressure at the remote to determine if the issue is isolated to the valve itself, the relief valve, or the main hydraulic pump.

Repair steps

  1. Perform a complete fluid flush and change the hydraulic filters

    Perform this step if the hydraulic fluid is contaminated.

  2. Replace the damaged seals, couplers, or hoses

    Perform this step if the valve is leaking externally.

  3. Replace the specific external hydraulic control valve assembly

    Perform this step if the valve spool is internally damaged or the solenoid has failed (causing the electrical fault code).

Parts you might need

(5)
  • Hydraulic Spool/Distribution Valve

    3713928M5

    Fits 3600, 8100, and 8200 series tractors; manufactured by/for AGCO

  • Hydraulic Control Valve

    1617141M91
  • Hydraulic Pressure Valve

    3382294M91
  • Hydraulic Pump Control Valve Assembly

    1862486M96

    Available via aftermarket manufacturers like Reliance

  • External Hydraulic Remote Valve / Spool Valve

    Generic Part Name

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