




I have 5 screens on the deck. Two of them open with a handle and turning mechanism. Three of them have to be pushed up and down. They are all stiff and hard to move. I have applied a lubricant (silicone) WD-40 300g Specialist High Performance Silicone - Bunnings Australia
Is there a spring in these that can be tightened? Or, how do I get them to move up and down smoothly.
I need one more handle where can I get them?