Changing trimmer line is part of the normal routine maintenance that comes with the territory when owning a string trimmer. Trimmer line is typically made of nylon and spooled onto a trimmer cartridge by winding. However, some Craftsman trimmers utilize the Hassle Free spool system that allows for quickly and easily changing worn line or changing between line types. The trimmer uses medium-diameter red "A" line and smaller-diameter red "B" line for grass and small weeds, while a larger, black line is for use on heavy weeds and small brush.
Pull the glide plate from the bottom of the Craftsman Hassle Free trimmer head. Remove any old trimmer line.
Wipe the Glide plate and trimmer head with a damp rag to remove any dirt and debris.
Align the Glide plate with the proper hole in the trimmer head for the type of line to be used. Align the Glide plate with "A" or "B," depending on the line. The larger, black line goes in the "A" position.
Bend a length of Hassle Free trimmer line into a U shape. Insert both ends of the trimmer line into the holes in the Hassle Free trimmer head.
Push the line through and out the opposite side. Even the line, if necessary, so that the same amount of line is extending from both exit hole in the Hassle Free trimmer head.