I had exactly the same issue on first assembly, so you have very likely done the same thing I did. What stopped the hammer from working properly in my case was that I had used the wrong pin. There are two which are the same (small) diameter, but different lengths (I assume, since my hammer pin was missing).
One is for the ejector and holds it to the ejector shaft. The other is for the hammer and holds the small lever inside it. If you use the ejector pin in the hammer assembly, it sticks out into the groove, which should be clear of obstructions. Since it isn't clear, it snags on one of the parts attached to the frame.
Try swapping those two pins over...
Edit - Trent, I made a bunch of videos but I've never done it before and I couldn't come up with anything coherent enough to post. :lol
Don't worry though, it's really not that difficult. There are a couple of things the instructions could make clearer but they're good enough. Just be sure to identify the different types of fasteners, springs and pins correctly. There are several of each which look VERY similar but are not the same.
One is for the ejector and holds it to the ejector shaft. The other is for the hammer and holds the small lever inside it. If you use the ejector pin in the hammer assembly, it sticks out into the groove, which should be clear of obstructions. Since it isn't clear, it snags on one of the parts attached to the frame.
Try swapping those two pins over...
Edit - Trent, I made a bunch of videos but I've never done it before and I couldn't come up with anything coherent enough to post. :lol
Don't worry though, it's really not that difficult. There are a couple of things the instructions could make clearer but they're good enough. Just be sure to identify the different types of fasteners, springs and pins correctly. There are several of each which look VERY similar but are not the same.