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The screws are tightened up for travel but can be moved with a bit of brute force. Try using a set of vise grips along the small end of the Allen key. Then undo anti-clockwise, the screws will make a crack sound and then will freely move.
Owning one of these scopes requires collimating them. If you don't have one, get yourself a Tak collimation scope. Use the laser to set the camera centring plate at the rear (just around the adapters) to land in the centre of the secondary ring. Then use the Tak scope to collimate the primary to the secondary and the secondary to the primary. Check with the laser to check the focuser position again. Do this until everything looks correct. It might take several iterations. On the drawing H is the secondary shadow, move the rear collimation screws (two screws one large and one small near the air vents) to centre that in the Tak scope. Then use the secondary screws to centre the B. Don't use the secondary screws to centre the laser in the ring on the secondary. You need to use the camera centring plate for that.
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