Started a whole thread on 'those kinds' of grinders. depends on your expectations, and your sense of humor:I'm guessing this grinder is a piece of junk?
P.S. Scratch that. It has to be a POS. Ebay has a couple that looks like an Oregon clones that might work better.
https://www.arboristsite.com/community/threads/hf-chain-grinder-thread.268303/
Philbert