With a string trimmer, cutting grass and weeding can be done easily and efficiently. But you'll need to do routine maintenance to keep your trimmer running smoothly. In particular, if you're using the trimmer on heavy weeds or thick grass, the string can get tangled, which will stop the trimmer from operating. Fortunately, it's fairly easy to rewind the string, and you will be back to cutting in no time.
Remove the wire from the spark plug to prevent the trimmer from starting during the repair.
Twist the trimmer head counterclockwise to remove it from the trimmer. The string is housed in the trimmer head.
Pull the string from the trimmer head and unknot any tangles. Cut away any damaged string and discard.
Form a hook on each end of the trimmer string and thread the hook through the holes in the trimmer head. Loop the string around the head in the same direction as the old string.
Push the ends of the string into the cut-out on the side of the trimmer head. Place one end of string in each notch.
Place the ends of the string jutting from the head into the trimmer base. Twist the trimmer head back in place on the base. Turn the head clockwise until it snaps into place.
Reattach the wire to the spark plug.