I have a Homelite. It is auto/tap feed.
When installing line, I am supposedto thread the line thru the head so equal amounts on each side, and then turn dial on head to draw tag ends in closer.
I can do this fine, however, the line continually goes back inside the head.
And yes, I am turning the dial on the head the correct direction, as it is the only direction in the the dial turns.
Sorry, I don't know anything about the homelite trimmer. I have a kawasaki and a troy built. I have two buttons at the bottom of the head that I can push in that enables me to advance the line in either direction, keeping the line from going back into the head. Don't know about homelite.
Google your owners manual if you don't have one, check out utube videos or call the manufacture and ask them. The information you seek should be there, or it's possible somethings broken causing your issue. Just a thought.