Diff lock not working

[S854]

...apparently. I.e. only one wheel spins when "engaged".

Where do I look, or can I, to find out what the issue might be?

B3030

Is it always the same wheel not spinning?

I read a post somewhere here similar to yours… that post specifically said something like “diff-lock engaged, no power to left wheel”…

One reply suggested having another person observe the tractor while “stuck”… the offending “left wheel” was indeed spinning, the tire wasn’t… turned out to be an underinflated tire not getting sufficient grip on the wheel…

Here’s hoping your issue is just as easily rectified…