Respooled my, unplugged beata510, weedeater and reassembled it according to your directions. The spool was one that fits the models according to the packaging. I hold the weedeater, fingers far from the trigger, and plug it in. As soon as i do my shin is now covered in lashes because tool itself turned on. I threw the tool on the ground and immediately ripped the power cord out of it. If you need proof of my injuries and the tool let me know User's recommendation: Do not buy this dangers unpredictable tool.