06.00.06

Massey Ferguson 06.00.06 – HITCH or TRANS1: Issue With PTO Solenoid Circuit (Hitch) / Issue With Rear PTO On/Off Solenoid Power Supply

Issue description

The control module has detected an electrical fault (such as an open circuit, short circuit, or voltage irregularity) in the circuit that supplies power to the rear Power Take-Off (PTO) engagement solenoid valve. When this code is active, the PTO may fail to engage, hesitate, or fail to disengage properly.

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
  • 4700 Series
  • 4707
  • 4708
  • 4709
  • 5400 Series
  • 5600 Series
  • 5425 through 5475
  • 5608 through 5613
  • 5700 Series
  • 5710
  • 5711
  • 5710 SL
  • 5711 SL
  • 5712 SL
  • 5713 SL
  • 6400 Series
  • 6600 Series
  • 6700 Series
  • 6445 through 6499
  • 6612 through 6616
  • 6711 through 6718 S
  • 7600 Series
  • 7700 Series
  • 7614 through 7626
  • 7714 through 7726
  • 8600 Series
  • 8700 Series

Check the cause

  1. Check the transmission/hydraulic fluid level and condition, as low or heavily contaminated fluid can cause pressure drops that mimic solenoid engagement issues.

  2. Inspect the wiring harness leading to the PTO solenoid (typically on the transmission housing or top of the hitch valve area) for chafed wires, vibration damage, or loose pins.

  3. Disconnect the solenoid and check for moisture, dust, or corrosion inside the connector.

  4. Test the solenoid coil resistance (ohms) with a multimeter to ensure it isn't shorted or open. Briefly apply 12 volts directly to the coil to listen for an audible 'click' indicating mechanical actuation.

  5. Verify that the PTO switch in the cab is functioning and check all relevant transmission/PTO fuses and relays.

Repair steps

  1. Safety First

    Park the tractor on a level surface, lower all implements, turn off the engine, relieve hydraulic system pressure, and disconnect the battery.

  2. Clean the Area

    Thoroughly clean the area around the PTO solenoid on the transmission housing to prevent dirt from entering the hydraulic system.

  3. Disconnect

    Unplug the electrical connector from the solenoid.

  4. Removal

    Depending on the valve design, either remove the retaining nut at the end of the stem to slide the electromagnetic coil off, or unthread the entire hydraulic cartridge valve from the housing.

  5. Installation

    Lubricate the O-rings on the new solenoid valve with clean hydraulic fluid. Thread the new valve into the housing (or slide the new coil onto the existing stem) and tighten to OEM torque specifications.

  6. Reassembly

    Reconnect the electrical harness.

  7. Testing

    Reconnect the battery, top up the hydraulic fluid if any was lost, start the tractor, and test the PTO engagement from the cab to ensure smooth operation and that the code has cleared.

Parts you might need

(6)
  • Solenoid Valve Trans PTO Hyd / Rear PTO Solenoid

    3794719M4

    Replaces older 3794719M2. Always verify exact part number against tractor's serial number.

  • Solenoid Valve Trans PTO Hyd / Rear PTO Solenoid

    3794719M2

    Older part number, replaced by 3794719M4.

  • Solenoid Valve Trans PTO Hyd / Rear PTO Solenoid

    64850

    Common short number reference.

  • Solenoid Valve Trans PTO Hyd / Rear PTO Solenoid

    4363356M3
  • Solenoid Valve Trans PTO Hyd / Rear PTO Solenoid

    3794721M4
  • Solenoid Valve Trans PTO Hyd / Rear PTO Solenoid

    3793575M1

    Common on 6200, 8100, and 8200 series.

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