New Holland 4106 – Rear Electronic Hydraulic Remotes: Rear Remote No.1 Spool Movement Too Low

The electronic control system has commanded the first rear remote hydraulic valve to open or close, but the corresponding position sensor has not detected the expected amount of movement from the spool. Each electronically controlled remote valve (EHR) has a microprocessor that monitors the spool's position and reports it to the main vehicle controller. This fault is triggered when the actual travel of the spool is less than the commanded travel.

• T7.220
• T7.235
• T7.250
• T7.260
• T7.270
• T8.275
• T8.300
• T8.320
• T8.330
• T8.350
• T8.360
• T8.380
• T8.390
• T8.410
• T8.420
• T8.435
• T9.390
• T9.435
• T9.450
• T9.480
• T9.505
• T9.530
• T9.560
• T9.565
• T9.600
• T9.615
• T9.645
• T9.670
• T9.700
• New Holland T6

1. 1

   Verify if the fault code is active, clear it, and operate the remote valve to see if the fault returns.

2. 2

   Perform a calibration routine for the rear remote valves through the tractor's diagnostic menu.

3. 3

   Remove the pilot head from remote #1 and press on the end of the spool with your thumb to check for free movement. It should extend out approximately 9.35 mm (0.368 in) beyond the valve body surface.

4. 4

   Swap the pilot head from remote #1 with a known functioning pilot head from another remote to isolate whether the fault is in the pilot head or the valve body.

1. 1

   Clear codes and recalibrate

   Clear the fault code and recalibrate the remote valves using the tractor's onboard diagnostic system. If the code does not return, continue to monitor during field operation.

2. 2

   Replace pilot head

   If the fault follows the swapped pilot head during diagnostics, the pilot head is faulty. Disconnect the electrical connector, unbolt the faulty pilot head from the main valve body, and install a new unit.

3. 3

   Service or replace valve body

   If the spool is binding or the fault remains at remote #1 after swapping pilot heads, the problem is likely a worn spool in the valve body. Remove the entire remote valve body from the stack, disassemble, clean, and inspect for damage or contamination. Replace components or the entire section as necessary.