I've got a couple of top-hung aluminium windows that are becoming difficult to close because the bits that protrude at the bottom (cams or rollers?) are catching on the outside lip of the window frame. The keeps are branded 'Sapa'.
The cams take an allen key and I can turn them. I was hoping I might be able to adjust them by screwing them in to the window so they don't protrude so much, but that doesn't seem to work, and one of them is very loose so may need replacing or refitting somehow.
There doesn't seem to be scope to move the side hinges up in the frame because it looks like they're at the top of their adjustment.
I've failed to find a Youtube video that helps, or any documentation. Can anyone can point me in the right direction to solve this?
Thanks in advance!