Originally Posted by
Europa01
Thinking about this a bit more, whilst pulling the door down, the guide tracks will position the stop pins / pads correctly relative to each other at the top of the door but it is probably necessary to keep pulling inwards and downwards to ensure that the lower stop pins / pads are positioned correctly. This is because the hinge posts have substantial free inboard-outboard movement available at the floor brackets (see Chris Brady’s last video) so need to be pulled in the inboard direction to ensure the pins clear the pads as they move down.
There is workers quote somewhere in this thread that states the bottom hinge mechanism has an over centre action, which if you think about it is needed for the design to work, so there won't be inboard-outboard movement after the bottom is pulled in the bolts inserted.