New Holland 4162 – EHR: Rear Remote No.5 Spool Deflection Too Short

The electronic control module has detected that the spool within the No. 5 rear electro-hydraulic remote (EHR) valve is not moving to its commanded position. The travel distance of the spool is less than what the system expects for the given command from the operator's control. This insufficient movement can lead to a partial or complete loss of hydraulic function for that specific remote. The system monitors the spool's position via a position transducer.

• New Holland T8 Series
• New Holland T7 Series
• New Holland TM Series
• New Holland MXM Series

1. 1

   Verify hydraulic fluid level and condition to ensure it is not low or contaminated

2. 2

   Inspect the No. 5 remote valve and associated hoses for any signs of external hydraulic fluid leaks

3. 3

   Inspect the wiring harness and electrical connectors leading to the No. 5 remote valve for damage, corrosion, or loose connections

4. 4

   Observe system behavior to see if the issue is intermittent or constant, which may indicate wiring problems or temperature-related hydraulic oil issues

5. 5

   Check for other related fault codes, such as 4167 (position transducer) or 4166 (output stage faults), which can help pinpoint the root cause

1. 1

   Calibrate remote valve

   Warm the hydraulic oil to operating temperature (around 50°C). Access the calibration menu (often the 'H' menu) on the tractor's display, select the No. 5 remote valve, and follow the on-screen prompts to move the control lever to its full extend and retract positions.

2. 2

   Inspect valve mechanically

   If calibration fails or the problem persists, inspect the valve for mechanical issues such as a sticking spool due to debris, internal damage to the valve body, or worn internal seals.

3. 3

   Test position transducer

   Use a multimeter to check for proper voltage signals from the position transducer as the spool is commanded to move. Incorrect feedback to the controller will trigger this fault. A fault code specifically for the position transducer (4167) would strongly indicate this is the problem.

4. 4

   Check solenoids

   Check for proper electrical signals to the solenoids. Listen for an audible 'click' when they are actuated to ensure they are attempting to move the spool. While a different fault code might be expected for a solenoid failure, an underperforming solenoid could potentially cause insufficient spool travel.

5. 5

   Replace components

   If the above steps fail to resolve the issue, replace the faulty component. This may require replacing the position transducer, the solenoid pack, or the entire remote valve assembly.