Massey Ferguson 04.02.F2 – TRANS: Transmission Calibration Issue
Issue description
The transmission's internal software has detected that the transmission is out of calibration, or a previous calibration attempt failed or was interrupted.
Applies to these machines
17 machines- 7714
- 7715
- 7715S
- 7716
- 7716S
- 7718
- 7718S
- 7719
- 7720
- 7720S
- 7722
- 7722S
- 7724
- 7724S
- 7726
- 7726S
- Tier 4 (2015-2021)
Check the cause
Ensure the tractor is parked on completely flat ground
Verify transmission oil temperature is between 35°C (95°F) and 45°C (113°F) by normal operation or engaging the PTO
Cycle the PowerShuttle lever 10 times in each direction for 5 to 10 seconds to warm up the control unit and solenoid valves to match transmission temperature
Configure the PowerShuttle progressivity settings all to '0' on the left-hand dash screen
Disengage the PTO, differential lock, and front axle, place the tractor in neutral, and release the park brake
Repair steps
Raise engine speed
With the pre-checks met, raise the engine speed to 1500 RPM (± 100 RPM) using the hand throttle.
Engage PowerShuttle and differential lock
Raise the PowerShuttle arm to the 'raised' position (left of the steering wheel) and hold it there while simultaneously pressing the differential lock switch.
Hold controls
Hold both for approximately 10 seconds (or until the right-hand transmission gear screen displays 'Ct').
Begin calibration
Once 'Ct' is displayed, the tractor is ready. Place the PowerShuttle arm into the forward position to begin the calibration.
Wait for calibration
The calibration process takes approximately 10 minutes. The screen will continuously show 'Ct', and it is completely normal to hear the transmission shifting and making noises during this time.
Verify completion
Once complete, the right-hand screen will display the last transmission ratio you were in before starting (e.g., '1A/2A' or '1E/2E').
Save settings
To save the settings: Place the PowerShuttle into the neutral position, disengage the differential lock, idle the tractor down, and switch the engine off.
Validate settings
Restart the tractor and validate the settings by driving back and forth using a variety of maneuvers (forward to reverse, neutral to forward, etc.) to ensure shifting is smooth.
Parts you might need
(10)Transmission Control Solenoid Valve (Fwd/Rev / Trans PTO Hyd)
4363356M3Fits Massey Ferguson 5400, 6400, 6600, 6700, 7600, and 7700 series.
Transmission Control Solenoid Valve (Fwd/Rev / Trans PTO Hyd)
3794719M4Fits Massey Ferguson 5400, 6400, 6600, 6700, 7600, and 7700 series.
Transmission Control Solenoid Valve (Fwd/Rev / Trans PTO Hyd)
3794719M2Fits Massey Ferguson 5400, 6400, 6600, 6700, 7600, and 7700 series.
Transmission Control Solenoid Valve (Fwd/Rev / Trans PTO Hyd)
3794721M4Fits Massey Ferguson 5400, 6400, 6600, 6700, 7600, and 7700 series.
Transmission Control Solenoid Valve (Fwd/Rev / Trans PTO Hyd)
3794721M5Fits Massey Ferguson 5400, 6400, 6600, 6700, 7600, and 7700 series.
Transmission Input Shaft Speed Sensor
4308785M13Fits Massey Ferguson 6400, 6600, 6700, 7600, and 7700 series.
Transmission Input Shaft Speed Sensor
4308785M12Fits Massey Ferguson 6400, 6600, 6700, 7600, and 7700 series.
Transmission Input Shaft Speed Sensor
4308785M11Fits Massey Ferguson 6400, 6600, 6700, 7600, and 7700 series.
Transmission Input Shaft Speed Sensor
4371901M1Fits Massey Ferguson 6400, 6600, 6700, 7600, and 7700 series.
Transmission Control Module (TCM / Autotronic Unit)
No single part number applies universally here as TCMs are highly specific to the exact chassis serial number and transmission type (Dyna-4 vs Dyna-6 vs Dyna-VT). A generic replacement will require dealer programming.
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