Removing screws from crank body on 39-176 Pella operator.

A handy person from Caledon, ON says:
I"m replacing a 39-176 crank assembly on my old Pella awning window.
What do I remove to get at the old screws on the crank body in this case?
There is an aluminum track that appears to be removable but is holding the window in place.
Thanks in advance for your advise
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Dave Sr. from SWISCO responded:
Good morning, Ray.

You most likely have some type of wood sill cover over the top of the operator, hiding the screws in the body. You will have to remove the sill cover with a chisel or stiff putty knife. Be careful not to damage the wood trim in removing it.
A quick learner from Caledon, ON says:
Hi Dave
The Job"s done, works like a charm. If others are replacing the crank assembly remind them to score the painted joint with a utility knife and as you advised me, pry the trim away carefully as it is very thin over the assembly.
Thanks for your expert info.
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