opnspaces wrote:
It sounds like your L brackets are too far back on the tongue. I know I can't get to 90 without the trailer contacting the tow vehicle. But when I do have it back that far the bars are still about 3 inches from falling off the L bracket.
Maybe take a tape measure and make sure the L brackets are between 27 - 32 inches from the tip of the tongue. If they are at 32 try moving them closer to the ball by an inch or so.
I agree with opnspaces, the bars are mis-adjusted. Check the L brackets for measurement. As others have said, getting into that tight of turn requires that you re-position the vehicle, but that being said, I too have had my trailers into tight spaces and been close to 90* in trying to get them backed up so I could turn around, and the bars never came off. After you re-adjust the L brackets, swivel the head in both directions to at least 90* to make sure they will not come off again.