Are your hatches dropping/falling?
We have recently added the Friction hinge sets for Cristal series & Evolution series Portlights and hatches.
First off, the simple fix is -
If they are still falling or not holding in place, the rudder has cracked, gone hard or missing. You will need one of the two friction hinge sets - Large or Small
- Have you tried tightening the Allen head bolt and Nylon nut within the hinge.