Pella 80GZ0102 - Manual (Page 4)

TWO OR MORE PEOPLE WILL BE REQUIRED FOR THE FOLLOWING STEPS.
3
SETTING AND FASTENING THE WINDOW
A. Insert the window from the exterior of the building.
Place the bottom of the window on the spacers at
the bottom of the opening, then tilt the top into
position. Center the window between the sides of the
opening to allow clearance for shimming, and insert
one roofing nail in the first hole from the top of each
jamb nailing fin. These are used to hold the window
in place while shimming it plumb and square.
B. Plumb and square window. Place shims between
the window frame and the rough opening at each
installation screw hole. Adjust the shims as required
to plumb and square the window in the opening.
Note: DO NOT over shim.
C. Check the interior reveal. Make sure the
measurement from the interior face of the window to
the interior face of the wall is equal at several points
around the window.
Note: If the dimensions are not equal, check
to make sure the fins are folded out to 90° at
all points.
D. Fasten the window to opening. On windows with a fixed
EXTRUDED
EVERY
INTO
For flexible fins: Drive nails until the head
contacts the fin, however DO NOT sink
the head. This allows for movement of
building materials.
Note: Make sure the fin corner is lying as
flat as possible.
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