Originally Posted by rickthelen
Can someone explain what is physically happening when fw chucking occurs?
what is the cause and what are the best solutions.?
Thanks for your insights.
I believe that "chucking" occurs when there is motion (Up and Down and Fore and Aft) between the king pin and the FW hitch while moving.
The cause may be from perhaps having too much play/clearance between the FW king pin and the hitch locking jaws. But remember that there has to be some play/clearance between the two or you would have a very difficult time turning your FW.
I get the chucking when traveling on a rough section of paved highway, but as long as my FW is still behind me when we stop, I feel OK,
I do check both the king pin and hitch for wear also and have not seen anything abnormal yet.
That is my take on it.