3 off 10mm hex head screws. On the lower latching part ( not the bonnet)
Use a ratchet 1/4 with 10'mm socket, but a ring spanner would also fit
Just loosen enough that It can move.maybe 1/2 turn. Don't remove the screws.
Easy access, nothing comes loose.
There are stamped lines for guidance and it only moves about 3 mm anyway.
Use a black marker to draw around the latch and so you can judge how much it moved.
Only needs to moved about 1mm to make a difference.
If too loose, it will still lock and latch ok, but there is movement of you press down on bonnet.
2 mins to adjust and you'll be able to drop the bonnet from 150-200mm and latch.