For some time I have had problems with a neighbors drain that crosses our land and so I have decided to intercept it and put in a manhole for rodding access. Good job for the digger so out it came nice hot sunny day, dug the trench, found the drains ( my wife is a dowser ) using two bits of fence wire, spot on location. made the trench much bigger for the manhole and then thought I would go back to the other end of the trench and clean it out ready to lay the pipe. I managed to straddle the trench without a problem until I came to a bit where the wall collapsed under me and pulled the track off the drive sprocket. Ho Hum! serves me right for being over ambitious, now I need to get some more crawlers out as a recovery team!