Pella Precision Fit - Manual (Page 6)

3
SEALING AND FASTENING
THE WINDOW (CONTINUED)
POCKET REPLACEMENT
Improper screw depth, screw
head driven below the surface
of frame.
Proper screw depth, screw
head flush with surface of
frame.
G. Finish driving all the installation screws through the wood frame jamb, ensuring
the head of the screws is flush with the surface of the wood frame.
DO NOT drive screws below flush with the surface of the frame.
H. Check window operation (vent units only). Unlock the window by lifting the lock
handle up. Open the window by rotating the crank handle. Remove the shipping
spacers. Open and close the window a few times to check for proper operation. Close
and lock the window.
Note: If there are any problems with the operation of the window, recheck the shim
locations and adjust for plumb and square.
4
INTERIOR SEAL
Caution: Ensure use of low pressure polyurethane window and door insulating foams
and strictly follow the foam manufacturer’s recommendations for application. Use of
high pressure foams or improper application of the foam may cause the window frame
to bow and hinder operation.
A. Apply insulation foam. From the interior, insert
the nozzle of the applicator approximately 1"
deep into the space between the window and the
rough opening and apply a 1" deep bead of foam.
This will allow room for expansion of the foam
and will minimize squeeze out. Allow the foam
to cure completely (usually 8 to 24 hours) before
proceeding to the next step.
Note: It may be necessary to squeeze the end of the
tube with pliers to be able to insert into the space
between the new and existing window frame. DO
NOT completely fill the space from the back of the
blind stops to the interior face of the opening.
B. Check window operation by opening and closing the window.
Note: If the window does not operate correctly, check to make sure it is still plumb,
level, square and that the sides are not bowed. If adjustments are required, remove
the foam with a serrated knife. Adjust the shims, and reapply the insulating foam
sealant.
C. Inspect the foam after it has cured. Fill any voids with foam prior to installing
interior trim.
D. Reinstall the existing interior sash stops or new trim as desired.
4A
3D 3D 3G 3G