Using the DeWalt DCST970B string trimmer is easy. First, make sure you're wearing safety glasses and gloves. Attach the auxiliary handle for better control. Then, turn on the trimmer using the power switch. You can adjust the speed with the variable speed trigger. For tougher overgrowth, use the high - speed setting, and for normal trimming, the low - speed setting can save battery life. When you're done, turn off the trimmer. To maintain it, clean the trimmer after each use to remove grass and debris. Check the spool regularly to ensure there's enough line. If the line runs out, replace it with 0.080' or 0.095' line. Store the trimmer in a dry place. Also, take advantage of the 3 - year limited warranty, 1 - year free service contract, and 90 - day money - back guarantee provided by the manufacturer.
