WA1200 and 994 would be about the same weight. Only difference was we used to leave the cab on. See the photos in my post on the previous page. Furthest we moved a 994 in that condition was just under 1000km and we regularly moved them 2-300km in a ready to work condition.I am working in this same area and the largest load I have seen being moved on a public road was an almost complete Komatsu WA1200 front end loader. Only the cab had been removed to reduce the overall heigth a little. This would have weighed around 220 tons.
I can honestly say that if that excavator decided it wanted to move no amount of chains is going to stop it, I don't care how many you put on there .....!!
IMHO the chains are for show so that it keeps the Safety germs happy.
I disagree. The chains aren't to arrest movement, they are to keep movement from beginning. Once something has started to move, nothing is going to stop it. But by keeping even a little force applied against movement in the opposite direction force is going to be applied, the load won't start to move in the first place. That's what the chains are there for. If the force is large enough, the load is going to go, but small forces applied to the load where it may creep a little, will be held in check. Those small movements are what become big problems, really fast, as they tend to compound into a full on slide.