39-027E Installation on old wood windows

A handy person from Portland, Or says:
April 22, 2019

Hi. Can your 39-027E be used in the same way as the 39-020 on old wood casement windows with fixed butt hinges? The advantage I see of these newer hinges is that it appears they have a cover that fits over the mechanism. Am I correct?

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Tom from SWISCO responded:
April 25, 2019

It could be possible, theoretically, but you'd have to get a new sash track to go along with it. The wheel on the 39-020 is very small, while the wheel on the 39-027E is a lot thicker.

Even then, it would probably require some adaptation of the sill and sill trim to get this to fit since their design is so different.

The 39-027E does have a cover but it is built into the operator and cannot be removed or replaced. It's better to not think of it as a cover and more like it's part of the mechanism.
Wood Window Crank, 9"
Wood Window Crank, 9"
39-020
$33.50
Ellipse Style Single Arm Operator, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-027E
$20.70
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