Massey Ferguson 04.X.F2 – Transmission Module (TRANS): Transmission Calibration Issue (TRANS)
Issue description
Triggered when the transmission calibration process has failed, is incomplete, or has not been performed after a repair or component replacement.
Applies to these machines
28 machines- 7714
- 7715
- 7715S
- 7716
- 7716S
- 7718
- 7718S
- 7719
- 7720
- 7720S
- 7722
- 7722S
- 7724
- 7724S
- 7726
- 7726S
- Tier 4 (2015-2021)
- 5400 Series
- 5600 Series
- 5700 Series
- 6400 Series
- 6600 Series
- 6700 Series
- 7400 Series
- 7600 Series
- 7700 Series
- Dyna-4
- Dyna-6
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) (or 15°C to 60°C) via the dash diagnostic screen.
Engage the PTO to help warm up the transmission fluid if it is too cold.
Cycle the PowerShuttle lever 10 times in each direction (forward and reverse), leaving it in each position for 5 to 10 seconds to warm up the control unit and solenoid valves.
Ensure the differential lock and front axle (4WD) are disengaged so they do not interfere with the calibration process.
Repair steps
Prepare tractor
With the tractor running on flat ground, place the transmission in neutral and release the parking brake.
Increase engine speed
Increase the engine speed to approximately 1500 RPM (± 100 RPM).
Engage controls
Raise the PowerShuttle arm to the 'raised' position (located to the left of the steering wheel) and hold it there while simultaneously pressing the differential lock switch.
Enter calibration mode
Hold both controls for approximately 10 seconds until the right-hand instrument panel displays 'Ct' (Calibration mode).
Initiate calibration
Once 'Ct' is displayed, move the PowerShuttle arm into the forward position to initiate the calibration.
Wait for calibration
The tractor will automatically calibrate the clutches. This takes several minutes. It is completely normal to hear the transmission shifting and making noises during this time.
Verify completion
Once complete, the screen will stop displaying 'Ct' and will show the transmission ratio (e.g., '1A/2A').
Save settings
Place the PowerShuttle back into the neutral position, disengage the differential lock, idle the tractor down, and turn the engine off to confirm and save the new parameters.
Validate calibration
Restart the tractor and validate the calibration by performing various forward and reverse maneuvers to ensure shifting is smooth.
Parts you might need
(7)Clutch Pedal Potentiometer / Axle Direction Sensor
3784361M1Fits a massive range of Dyna-transmission tractors (5400 through 8700 series). Tells the Autotronic controller the exact position of the clutch pedal.
Clutch Pedal Potentiometer / Axle Direction Sensor
64843Alternate part number. Fits a massive range of Dyna-transmission tractors (5400 through 8700 series).
Transmission Control Solenoid Valve (Trans/PTO/Hyd)
4363356M3Fits 5400, 5600, 6400, 6600, 7600, and 7700 series.
Transmission Control Solenoid Valve (Trans/PTO/Hyd)
3794719M2Older replaced part number.
Transmission Control Solenoid Valve (Trans/PTO/Hyd)
3794719M4Older replaced part number.
Transmission Solenoid Valve (Older Series)
3619762M1Fits older 3000, 6100, 6200, and 8100 series tractors.
Transmission Solenoid Valve (Older Series)
3619782M1Fits older 3000, 6100, 6200, and 8100 series tractors.
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