There is a solitary loaded tipping wagon on a sub level ABOVE level 2. After you go through Roy's dig and crawl through the three collapses the passage carries on towards the ore diversion truck. There is an old ladderway nearby (can't remember whether is before or after the truck) which is bereft of the the bottom two ladders, but there are compressed air pipes heading up. Follow these and you get to some ladders in fair condition. At the top of these is a side passage which leads to a short passage parallel to and above level 2. There is a loaded ore wagon there. Given its location and the fact that there is no-where for it to go forward or back - its a bit of a mystery. There is a photo on the CAL site.
Dave