Massey Ferguson T147 – Transmission Module 1 (TRANS1): PTO clutch power too high

The system detects a Power Shuttle or Powershift module slippage of >10% for more than 700 milliseconds by comparing the engine speed and the intermediate/PTO speed.

• 7616
• 5612
• 7622
• Interim Tier 4 (2012-2015)
• 7614
• 5611
• 7615
• 5610
• 5613
• 7620
• 5609
• 7618
• 5608
• 7619
• 7626
• 7624
• 5400 Series
• 5425
• 5480
• 5600 Series
• 6400 Series
• 6465
• 6475
• 6480
• 6497
• 6499
• 6600 Series
• 6700 Series
• 7600 Series
• 7700 Series
• 7714
• 7726S

1. 1

   Perform diagnostic tests on the speed sensors using the Massey Ferguson Wintest software.

2. 2

   Check the speed sensor and connector pins for any signs of corrosion or poor contact.

3. 3

   With the ignition off and the sensor disconnected at room temperature, check the sensor's resistance. It must read 450 Ohms +/- 20 Ohms.

4. 4

   Check for alternating voltage from the sensor when the gear is turning.

5. 5

   Perform a continuity test on the earth wire and the signal wire, and perform a short-circuit test on the harness.

1. 1

   Disconnect wiring harness

   Disconnect the wiring harness from the faulty speed sensor.

2. 2

   Remove old sensor

   Unscrew and remove the old sensor from the housing.

3. 3

   Apply thread sealant

   Apply a small amount of Loctite 5922 to the threads of the new sensor.

4. 4

   Install new sensor

   Manually screw the new sensor in fully against the gear.

5. 5

   Reconnect wiring harness

   Reconnect the wiring harness, ensuring the connector makes good contact.

6. 6

   Clear fault codes and test

   Clear the fault codes and test the PTO operation to ensure the slippage reading has resolved.