I doubt it. Read your manual. I just replaced cord on my weedeater. Spool pulled off vs spool on my gas Troy-bilt that screws off. Cords can get bound. Sometimes when bumping does not work, I push in head while pulling our extra cord.
Get rid of it and get one that you put the trim line on manually. Once you learn how to operate them w/o breaking them it is MUCH better. The trick is to angle the line away from the concrete or rocks. Then you can buy the line in bulk and it is exponentially cheaper. I've never seen a pro landscaper using a auto line feeder.
I have a brand new Homelite gas job and was having the same problem today. Bumping it on the ground don't work. I have to push the bumper in by hand and pull the line with needle nose pliers. Other than that, it works fine. I imagine it was wound on the spool improperly. Never had that problem with my Toro electric even when I replaced it with new bulk line and wound it myself.
I have had the same problem occasionally. I really don't know what causes it. I was about ready to give up and buy prewound spools, but couldn't fine any. So I tried rewinding it again, starting with fresh cord and after that it worked fine. It still tangles occasionally, but not nearly as badly as it was for a while. The best I can say is to rewind it carefully. Try not to force the spool completely full. Mine uses a smaller cord than that. Something like a .064 if I recall correctly, but I wouldn't want to bet on that, since I would have to get up and go out and look to make sure.
And for the people who say that he just isn't bumping it right. No you don't have to bump it, it is automatic. I'm not quite sure how it works, but it does. And mostly it does it just fine.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.