
Replacing the cutting line on your Kobalt KST 2224B-03 Brushless String Trimmer is straightforward. Here's a step-by-step guide: First, press the two release tabs located on the spool base, then pull the spool retainer straight out to remove it. Next, take out the spool and clean both the inner surface of the spool retainer and the spool base. Now, take approximately 15 feet of 0.08-inch diameter cutting line. Fold the line in half, making one end slightly longer than the other. Hook the folded end of the cutting line onto either of the slots found in the spool. Wind the line evenly and tightly onto the spool, in two layers, following the direction indicated on the spool itself. Once wound, place the ends of the line into the two opposite notches located on the spool, leaving about 5 inches protruding. Align the notches of the spool with the eyelets in the spool retainer and position the spool back into the retainer. Pull one end of the line to release it from the notch in the eyelet and repeat this step with the other end. Finally, align the slots in the spool retainer with the tabs on the spool base, and press the retainer down until it clicks securely into place. Following these instructions will help you efficiently replace the cutting line on your Kobalt string trimmer.


