Case IH 4145 – EHR (Electronic Hydraulic Remote): Rear remote no. 4 - switched to failsafe

The electronic controller has detected an anomaly or failure in the #4 rear remote valve (such as an inability to reach neutral, voltage irregularities, or implausible control messages). To prevent unintended hydraulic operation or damage, the system locks the #4 remote into a failsafe (neutral) mode.

• Maxxum
• MAXXUM T4E
• Steiger Series
• Quadtrac
• Magnum Series
• Puma Series
• Maxxum Series
• Optum Series

1. 1

   Power cycle the tractor to see if the failsafe lockup clears temporarily

2. 2

   Inspect cab switches, remote fender switches, and the EHR control valve wire harness for visible damage, shorts, or loose connections

3. 3

   Check if the EHR valve has been properly calibrated and perform the calibration procedure

4. 4

   Verify the tractor has the latest software level downloaded to the controller if calibration fails

1. 1

   Relieve all hydraulic pressure from the tractor's system.

2. 2

   Locate the #4 rear remote valve on the rear hydraulic valve stack.

3. 3

   Disconnect the electrical harness from the #4 EHR pilot head.

4. 4

   Unbolt and remove the faulty pilot head from the remote valve body.

5. 5

   Install the new pilot head and torque the mounting bolts to the manufacturer's specifications.

6. 6

   Reconnect the electrical harness.

7. 7

   Perform the EHR valve calibration procedure using the tractor's display or an Electronic Service Tool.

   This is a crucial step so the controller can learn the new pilot head's neutral and travel limits.