Hey guys,
OK, I picked up this SN89 yesterday. I showed it to my brother this morning, and when he went to pick it up to take a closer look at it, he grabbed it by the pulley and the pulley came off in his hands. No problem, I put the pulley back on the output shaft, and HAND TIGHTENED the three allen-head bolts that hold it in place.
NOW I CAN'T GET THE STUPID THING OFF!!!
Any help would be greatly appreciated.