[QUOTE=Doug in Alberta;455477I tried removing the top pane but could not lift it off hinges. If I can only achieve strip swap by taking window apart, please let me down slowly as my windows have already been resealed with new butyl and ply. Thanks![/QUOTE]
Given it's been a few years since this post, I'll let you down slowly.
I'm doing mine now and felt it best to post the answer in this thread
Originally Posted by Ian G.
It will be much easier if you remove the upper window, Just remove the 4 screws as I mentioned iwhen you initially posted. You should not have to remove the entire window, just the upper window.
The side window on a Trillium has to come out to safely remove the top jalousie pane. Even with the window out, I had to undo the 4 screws on the header to lift it up high enough to pull the pane out.
The key difference is that the header is attached at a downward angle on the Trill windows - I looked at my boler
and it is @ 90 degrees. The angle is what makes it difficult.
Here are some shots of mine with the pieces held together by hand.
The first one is with the top pane out.
The second with the top pane in lookin from the inside.