Remove the battery from the trimmer. On each side of the spool is a tab, push it the tabs at the same time to remove. You can then replace the complete spool and line assembly. Or you can restring the line by lining the arrow on the cap with the two white arrows on the outer white ring. Thread the string through the hole. Pull through and make sure that each side is equal in size. Then wind the black knob counterclockwise to wind it onto the reel.
Stihl FSA 57 Telescoping Straight Shaft String Trimmer Kit, 11in. Cutting Width, Model# FSA 57 SET

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- Adjustable telescoping shaft to fit different user heights for enhanced operating comfort
- AutoCut® head feeds out new line with just a tap on the ground
- Trim the length of 5 football fields (up to 0.31 miles) on a single charge* (*Usage claim tested and verified by an independent third-party test laboratory. Run time may vary based on battery type, charge level and capacity, model, operating style and conditions)
- Weighs just 7.6 lbs. (including battery) for easy portability and maneuverability
- Onboard hanging slot provides an easy storage solution when not in use
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