Help! Dropped upvc door

[builderstea]

Our old upvc front door is out of alignment and drops downwards towards the handle side and will only lock if you lift it by the handle at the same time. We know we need to adjust the hinges but not sure how to do this with the hinges we've got. Haven't seen any photos or videos with exactly the same type of hinge. Can anyone tell us in the first photo whether the marked screws are grub screws just to be loosened or are they screws for adjustment? What adjustments, with which screws, do we need to make?! Thanks in advance.

 

[crank39]

The grub screws only hold the hinge pins in place and not for adjustment, the pin has an allen key hole which if you turn will move the door sideways because the pin is like a cam, adjust the upper and lower pins on the top hinge so it pulls the top of the door away from the locking side and the lower hinge do the opposite but these are crap hinges about 100 years old and have minimal movement, you'd benefit more by toe and heeling the door if i'm honest

 

[builderstea]

Hi, thanks for this.
1. So you're confirming that the screws ringed in the first photo are grub screws (2 per hinge? This is what we didn't understand. Normally there only seems to be one per hinge)
2. Is there a difference in function between the top and bottom pins on our hinges?
Cheers

 

[crank39]

Yes 2 grub screws because the pin is in 2 halves, loosen the screws and turn the pin, both halves

Toe and heeling is the method used for supporting the door from sagging using the glass as the method of keeping the door square. Imagine a garden gate or a farm gate which have a diagonal brace from the top corner on handle side (the toe) down to the opposing bottom corner hinge side (the heel), by toe and heeling this means the weight of the door is transferred downwards into the bottom corner by creating a triangle just like say a shelf bracket needs a diagonal for support, remove the diagonal and the shelf will sag over time

 

[builderstea]

Thanks for your help. Really appreciate it.