1 you must take the top off the mower it should be three or four bolts two in front and two on the rear on the left and right side of the mower.2pull the top off.3 turn the top upsidedown and you will see where the string comes through the top.4their is a plastic wheel where the string connects to you must wind this wheel a couple of turns then line it up with the hole on the cover and put the striing through the hole then through the plastic wheel then tie a not in the string so it wont go back through the holes and then let it go and it will go back all by itsself and then put the cover back with the four bolts and tighten them with a 3/8or 1/2 or 7/16 rench these are the wrenches you will need.Hope this will help
Mike D.
October 2005