Drive with snoring sound failed

Moin together, I just lost my Pegasus P50 on the country road. Engine is running, but something seems to have broken at the drive. There was a snoring noise, drifting away. Then the snoring noise was gone, sounds now, as if the engine is running quite normally, nothing more at the drive. I can’t say more, just wait for the tow truck to bring the box home. I bought the part used, ran quite fast (so around the 65 k) m/h) without obvious structural changes. Guess it was “only” taken out the throttle. Do you already have an idea? I don’t have a lot of idea about rollers. Thank you and many greetings Olli