I was towing a 6,000 pound excavator on a 20â tilt deck trailer and rounded a turn to see a line of traffic stopped waiting on a big truck to turn. I hit the brakes and the truck didnât start to slow. I swerved to the shoulder and pressed breaks as hard as possible and went past several cars and t boned the big truck that was turning. The only brakes it felt like i had was the trailer brakes. Very severe accident that everyone walked away from but definitely was equipment failure involved.