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C. 

Continue placing shims at each pre-drilled hole as needed

 to plumb and square the 

window. Check the window for square by making sure the diagonal measurement from 

corner to corner of the replacement window is within 1/8" in both directions. Insert a 

3-1/4" finish wood screw into each pre-drilled hole in the frame. Finish inserting the top 

screw in each jamb.

Note:  DO NOT shim above the window. DO NOT over shim.

4

 SETTING AND FASTENING THE WINDOW

TWO OR MORE PEOPLE ARE REQUIRED FOR THE FOLLOWING STEPS.

Note: Because there are no stops in the opening to place the window against, be sure to hold 

the window in place when performing Steps 4A thru 4C.

A. 

Insert the replacement window in the opening

 

by first 

placing the bottom of the window on top of the shims on 

the sill of the opening. Tip the window upright into the 

opening.

Note:  Use of a suction cup 

on the glass will assist in 

handling the window.

Note:  Each existing window frame and wall depth will 

vary in different applications; therefore there is not a 

standard measurement for the overhang of the window 

frame to the exterior or for the distance from the interior 

face of the window to interior trim. When performing 

Steps 4B thru 4C, installing the frame screws, be sure to 

keep the distance consistent all around the window.

Note:  On the exterior, there must be enough room for 

backer rod and 3/8" sealant bead.

B. 

Place shims

 aligned with the top pre-drilled hole in 

one jamb of the window frame. Keep shims back 1/2" 

from interior face of window. Partially insert one 3-1/4" 

finish wood screw. Repeat on the other jamb.

Note:  Position the shims to ensure they allow at least 

1/2" from the exterior surface of the window to allow 

for placement of backer rod and sealant.

EXTERIOR

4A

NOTE

4A

3

2

1

in

NOTE

INTERIOR VIEW

4B 

Summary of Contents for 80WW0101

Page 1: ...OT use high pressure or latex foams 8 x 3 1 4 Finish head screws 6 to 10 per window TOOLS REQUIRED Tape measure Level Sealant gun Prybar Utility knife Putty knife Hammer Screwdrivers Flat Phillips Adj...

Page 2: ...s old paint before proceeding Chisel off any high spots C Apply one piece of sill flashing tape to the sill of the existing window frame Cut the tape 12 longer than the existing window sill width Appl...

Page 3: ...arance holes through the frame at the locations shown Space the holes a maximum of 6 from each end and a maximum of 16 on center Note The lower sash must be raised to drill the holes in the sill of th...

Page 4: ...Tip the window upright into the opening Note Use of a suction cup on the glass will assist in handling the window Note Each existing window frame and wall depth will vary in different applications th...

Page 5: ...jambs are not bowed If adjustments are required remove the foam with a serrated knife Adjust the shims and reapply the insulating foam sealant 6 EXTERIOR SEAL A Insert backer rod into the space around...

Page 6: ...SCRATCH THE GLASS Remove sanding dust Pella products must be finished per the below instructions failure to follow these instructions voids the Limited Warranty INTERIOR FINISH On casement and awning...

Page 7: ...ar systems must be in accordance with Pella installation instructions Product modifications that are not approved by Pella Corporation will void the Limited Warranty IMPORTANT NOTICE INSTALLING ROTO C...

Page 8: ...cam and lock lever near the bottom of the opening between the stop and frame gasket D Push the screwdriver inwards with a small amount of pressure then turn the blade slightly clockwise for a left ha...

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