New Holland 387 – ENGINE: 5 Volt Supply Voltage Too High for Decelerator or Hand Throttle

The 5 Volt Supply voltage for the Decelerator or Hand Throttle in the Standard cab is higher than expected. This may affect the proper operation of the component.

1. 1

   The 5 Volt Supply circuit for the Decelerator or Hand Throttle

2. 2

   Connections and wiring related to the Decelerator or Hand Throttle

1. 1

   Inspect

   Inspect the wiring and connections for the Decelerator or Hand Throttle for damage, corrosion, or loose contacts.

2. 2

   Test

   Test the 5 Volt Supply voltage using a multimeter to confirm the reading and compare it to the manufacturer's specifications.

3. 3

   Check

   Check for any short circuits or electrical interference in the circuit that could cause the voltage to rise.