Reassemble and Test Trimmer Head

What happens here

Begin reassembly by placing the retaining ring onto the trimmer head. Next, carefully align the two ends of the newly wound trimmer line with the notches on the outer edge of the trimmer head. Once aligned, insert the internal spool back into the trimmer head, ensuring that the lines feed through their respective eyelets. Push the spool and cap firmly until it clicks securely into place. To test, push the trimmer head button and gently pull the lines to ensure they feed out smoothly. If a line gets stuck, it may be 'crossed up' internally. To troubleshoot, carefully remove the spool, adjust the winding if necessary, and reinsert, ensuring the lines are not twisted or overlapping.

Goal: Securely reassemble the trimmer head and confirm proper line feeding.