Weed eaters come with single and dual-sided spools, and each manufacturer has its own specifications for how much line should be placed on the spool, what direction it should be wound, and the diameter size of line that should be used. Some dual-sided spools should have the lines wound in the same direction, while others require the lines be wrapped in opposite directions. The Craftsman model Turn off the weed eater by unplugging it, if electric, or pressing the off button for a gas engine. If the cutting head is hot to the touch, allow it to cool enough that you will not burn yourself when removing the spool. Remove the spool by squeezing together the release tabs on the cover of the trimmer head.