Awning Window Cranks

A home owner from Massachusetts says:
I just purchased some 39-076 cranks for some old windows that I have in my house. The original cranks have been breaking and I have gone through the replacement ones the previous owner left behind. I am glad you sell them.
Should I be oiling or lubricating these mechanisms in any way. These are on a porch and only get used during the summer, so they sit all winter without being used.
If I should lubricate them, do you have a suggestion for which lubricant and how often to lubricate them?
Thank you and I am glad that you sell these parts.
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Paul from SWISCO responded:
You would lubricate the operator because it's a sealed unit. You can lubricate the window arms and hinges, as well, if you want. I would use WD-40 on the joints first. Maybe physically move the glass panels to work in the WD-40, then wipe it off and spray with a silicone over the arms and hinges.
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