I bought an ego lawn mower off of Craigslist. Tested it on spot and it was operational. I didn't test the height adjuster. Shame on me. Tried to mow the lawn yesterday and noticed it wouldn't raise past the lowest setting (a 2 I believe). I got onto the chat here and saw posters saying the mower needed to be in a folded position to take weight off the wheels then pull the adjuster. When I did this the arm snapped off clean. Is there any replacement parts or did I just ruin a lawn mower?