having investigated/ already lubed the lock gearbox - I think door misalignment maybe contributory to my front door stiffness when extending the bolts.
has anyone adjusted one of these - I can't find exact lookalike on youtube videos eg
Fitting Guide - Butt Hinge Adjustments
there is a hex bolt on top, nothing to turn on the bottom of the butt
two hex bolts above and beneath centre grub screw, these hex bolts are also accessible on the other side of the hinge butt
QUESTIONS
the movement of the door with the top bolt is subtle - it maybe adjusting compression of door into frame ?
if the other two hexes adjust the alignment of the door in the frame, i'm not sure how you adjust them in tandem, along with those on other 2 hinges further down door ?
(you'd create a lot of wear on the hinges if they aren't aligned - how do you avoid that)
I'm not sure the grub screw plays any role - maybe for removing pin ?
door outside is black closing towards the viewer into the frame