You push down on the impact driver and have positive pressure on it in the direction of rotation, then you hit it! If you don't twist it like that, some or most of the impact blow is wasted. I strongly suggest using a medium strength threadlocker like blue Loctite when you install the stator. These screws have been known to loosen! Use that same impact driver for reinstallation manually- don't hit it with a hammer. You'll notice that you can get the screws much tighter compared to a normal Phillips driver because it has a larger hand grip.The impact driver worked today after an unbelievable number of hits with a dead blow hammer.
You push down on the impact driver and have positive pressure on it in the direction of rotation, then you hit it! If you don't twist it like that, some or most of the impact blow is wasted. I strongly suggest using a medium strength threadlocker like blue Loctite when you install the stator. These screws have been known to loosen! Use that same impact driver for reinstallation manually- don't hit it with a hammer. You'll notice that you can get the screws much tighter compared to a normal Phillips driver because it has a larger hand grip.
One more thing, you use a ball peen hammer with an impact driver, you are wasting your time with a dead blow hammer, your hammer is absorbing most of the impact, not how this is supposed to work
When you re-install the stator ditch the screws and use allen head cap screws and coat them with 1211 not locktight.