The first time the pin in the piano hinge on the front door dropped down (about 3/4 inch) I just took the hammer and 'whacked' it. <br/>It had dropped down enough to obstruct closing the step.<br/><br/>The second time, I again percussively adjusted it.<br/><br/>The third time (out in the wilds of the state park at Copper Harbor, MI), I decided I'd better fix it for good. <br/><br/>I drilled and...