Is there a trick to pulling the thing in reverse? I bought one today and mowed my lawn, but a lot of the times the front wheels wouldn't disengage. I was literally pulling the mower backward and the wheels were locked up?
Alright, after reading some of the manual it seems you need to roll it forward a little after releasing the drive in order to free up the gears. This will take some getting used to.
I have read a lot about grass clippings getting into the front gear box, I hope this isn't a common issue.