Set the line length by pressing the head of the string trimmer, then use your fingers to pull out the line. You should be able to pull out a few inches of line with each press.

Ryobi engineers have made this process as painless and easy as possible. Loading your Ryobi String Trimmer will take about 60 seconds.

When done correctly, attaching the weed whacker line to Ryobi's string trimmer should be a breeze. Here is a step-by-step guide on how to do it properly.