I also had my Boler
drop off on the road. I thought it was secure, and we took off a couple of years ago for a longish trip. About 5 miles after leaving home, we were in the left of 3 lanes going up a hill toward the highway (left lane turnoff onto the highway) when I heard a loud scraping sound and the minivan acted oddly. The hitch had come off the ball and we were towing by the safety chain, with the end of the jack on the ground showering sparks everywhere. I always keep the jack somewhat extended just in case, usually about 10 inches off the ground level when towing. Anyway, traffic was fairly light
, and everyone stopped so we could pull over to the right edge of the road. The ball had settled on under the clamp inside the hitch rather than over it, and I had locked it down onto nothing instead of onto the ball. Fortunately, the safety chain held and there was no damage other than a loss of about an inch off the end of the jack! We hooked up the hitch, properly this time, with the help of two teenage boys in the van, and continued on our trip. Now I always lift up on the hitch after hooking up to make sure that it is secured. I also had to file down the new weld/burn marks on the jack so that it would extend and retract properly.
A friend on my ball team had a similar experience last year. He was coming home to Edmonton from our national baseball championships in Saskatoon with his Boler
, about 600 km. A couple of miles from home, he went over a railroad track and the hitch popped off. He had been driving the whole way with the trailer not secured on the hitch. Again no real damage, but lesson learned, again.