ᐅ Front door dragging – How to raise the front door?

Hello everyone,

our front door was scraping against the floor, and I wanted to raise it a bit.
In the meantime, I simply sanded the bottom slightly and applied some paint to protect it from the weather.

However, for the future, I am still interested to know if anyone sees a way to raise the door using screws and an Allen key.

I especially could not find anything online about the four Allen screws on the hinge, which go sideways into the door next to the handle.

What exactly can be adjusted there and how?
See photos 3 and 4.

I have prepared labeled photos:
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Thank you in advance!

How did you sand it down at the bottom if it was rubbing on the floor?
Did you remove the door?
You should have checked the adjustment screws on the door hinge or the frame.

@Nida35a

The sanding was done this way because the door doesn’t rub against the floor but against the metal strip at the bottom of the doorway.
I’ll add this information again at the top.

EDIT: I didn’t see any adjustment screws. However, I’m very interested in what the Allen screws in photo number 4 are for, and how and what can be done with them.

In my opinion, you cannot adjust anything at the door hinge. Remove the 3 bolts (no. 2) and insert shims (0.2…0.3 mm) in between to raise the door slightly.

With no. 4, you may be able to adjust the door’s compression pressure (similar to windows with mushroom-head locking). However, the hex key likely serves only for mounting.