Had the same problem on my buddy's 155. For some reason the thing kinda "got loose". Don't know why, don't know how but here's an idea: Look at the area around the bolts of the hinges. If you see some bare or scraped metal, that indicates where it used to be. Just get a friend to come over and loosen the bolts, realign with the paint as a guide and tighten the bolts firm. Worked for me!