> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://esabservice.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Different rotation speed with 484/4804 wire feeders


${youtube}[Speed difference Feed 484/4804](W6YP94KHS6A)

The two motors are connected in serial and one one of the motors have en encoder output.
This results in uneven rotation speed when there is no welding wire linking the 2 motors.
The distribution of the speed can be compared with a car differential.

This is normal behaviour, nothing is wrong.