D.Lower the top sash and cut the balance cords allowing the balance weights to fall into the weight pocket. Remove the top sash.
E.Remove the balance cord pulleys. Unscrew and remove the balance cord pulleys. If they cannot be removed easily, drive them into the jamb using a hammer.
F.If desired, insulate the weight chamber by filling it with low pressure window and door insulating foam.
1E |
2 PREPARE THE OPENING
A.Apply one piece of sill flashing tape to the sill of the existing window. Cut the tape the same length as the width of the existing window sill. Place one side of the tape against the vertical leg of the stool, and work the tape into the corner before applying to the sill. Press down firmly.
DO NOT allow the flashing tape to extend past the blind stops.
B.Check to ensure the existing sill is level and not bowed (humped) upward. If necessary, place shims on the bottom of the window opening 1/2" from each side. Shim sill only at the jambs. Once level, attach shims to prevent movement.
Note: Improper placement of shims may result in bowed (humped) sill.
C.Remove plastic wrap, cardboard packaging and sill packaging board from window. DO NOT cut the checkrail bands or remove plastic shipping spacers located between the window sash and frame. The shipping spacers will help keep the window square during installation.
Blind stop |
Flashing |
Tape |
2A |
2B |
Note: If screens, grilles or hardware are removed from the window at this time, label them and store them in a protected area.
D.Remove the sill adapter for existing sills that slope less than 13 degrees. For existing sills that slope
13 degrees or more, fully extend the adjustable sill adapter.
Note: Usage of the sill adapter with existing sill angles less than 13 degrees may cause bowed (humped) sills, resulting in screen fit issues.
2D
Sill Adapter
E.Test fit the window. The window should be approximately 1/2" smaller than the opening in both width and height. Check to ensure the window rests against the exterior blind stops and will make contact with the sealant applied in steps 3 A, B and C. If the sill adpater is present, verify it is extended to meet the existing sill. Verify that the installation screws will fasten into solid wood. If not, repair the existing frame to insure there is solid wood at installation screw locations.