New Holland ARMRE 89 – Armrest Controller: Aux 1st remote valve FLOW potentiometer is failed

The rotary knob/potentiometer on the armrest—which the operator uses to adjust the hydraulic flow rate for the #1 auxiliary remote valve—has failed, has an open/short circuit, or is sending an out-of-range electrical signal to the controller.

• T4.80 to T4.110
• T6.140 to T6.175
• T6030 to T6090
• T7.170 to T7.315
• T7030 to T7070
• T8.275 to T8.435
• T9.435 to T9.700
• TG245

1. 1

   Inspect the wiring harness and connector leading to the 1st remote flow potentiometer for loose pins, corrosion, or pinched wires

2. 2

   Perform a component swap test by swapping the 1st remote flow potentiometer with the 2nd remote flow potentiometer to see if the fault code changes to the 2nd remote

3. 3

   Verify that the armrest controller is supplying the correct reference voltage to the sensor

1. 1

   Turn off the tractor and disconnect the battery

   Prevent electrical shorts while working inside the armrest.

2. 2

   Remove the retaining screws to open the armrest console cover

   Exposes the Electronic Draft Control (EDC) and EHR flow control section.

3. 3

   Locate the potentiometer

   Locate the potentiometer for the 1st auxiliary remote valve.

4. 4

   Disconnect the electrical harness connector

   Disconnect the electrical harness connector from the failed potentiometer.

5. 5

   Remove the flow control knob and retaining nut

   Remove the flow control knob from the top of the armrest, then undo the retaining nut (typically a 3/8-32 nut) holding the potentiometer to the panel.

6. 6

   Remove the old potentiometer and install the new replacement part

   Secure it with the retaining nut and reattach the knob.

7. 7

   Reconnect the electrical harness and reassemble

   Reconnect the electrical harness and reassemble the armrest console.

8. 8

   Power on the tractor and clear the inactive fault codes

   You may need to perform a remote valve calibration via the IntelliView / Pro700 monitor to ensure the new potentiometer's sweep is recognized by the controller.