Adjust Sashes on Andersen® 400 Series Casement Windows
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If you notice your 400 Series casement window sash, or windowpane, is dragging or rubbing on the frame, it may be crooked and in need of a hinge adjustment.
How to Adjust 400 Series Window Sashes
Adjusting the hinges on 400 Series casement windows is as simple as modifying the hinge's black insert. Follow the written instructions or the YouTube® video below to improve your window's operation.
This Article Will Help You:
Determine if your hinges are adjustable.
Adjust your casement window sash.
Safety Warnings
Tools and Supplies Needed
Safety glasses
Small screwdriver
File
Let's Get Started
1. Determine if Your Hinges are Adjustable
Adjustments can be made only to 400 Series casement windows with split-arm operators manufactured from 1998 to the present day. Important: The hinges are not adjustable on 400 Series casement windows manufactured before 1998, or on 400 Series casement windows with straight-arm operators.
Operators are the mechanisms that help open your window. Straight-arm operators have one metal arm that connects to the windowpane, while split-arm operators will have two metal arms joined together connecting to the windowpane.
Look at the head hinge, or hinge at the top of your window.
Check for the black insert, as seen in the image to the right.
Look at the sill hinge, or hinge at the bottom of your window.
Check for the black insert, as seen in the image to the right.
The Black Hinge Insert on the Hinge Arm
Depending on when your window was manufactured, both hinges or only the sill hinge will have the black insert.
Based on the location of the black hinge insert(s), we recommend:
You adjust the sill hinge first on 400 Series casement windows manufactured between 1998 and November 2006. These windows will have black hinge inserts in both the head and sill hinge arms.
You adjust the sill hinge on 400 Series casement windows manufactured from November 2006 to the present day — they only have hinge inserts on the sill hinge arm.
If you notice a black hinge insert is missing, see theAndersen® Parts Storefor a replacement.
2. Adjust Your Casement Window Sash
Follow the written instructions or YouTube® video below to adjust your casement window sash by filing and rotating the hinge insert. Note: Filing and rotating the black insert will adjust the casement window up to 1/16 inch.
Open the window sash by about 45°.
Identify the stopper screw, seen inside the grey box in the image to the right.
If a stopper screw is not present on your hinge, you must replace it before proceeding to the next steps.Contact Andersen® Windows and Doorsto order a replacement.
Unlock the hinge clip, the clip connecting the hinge arm to the windowsill, by sliding it toward the open window sash.
Note: In the image to the right, the hinge clip is highlighted by the orange box.
Lift the hinge arm off the pin it was locked into on the windowsill.
From the bottom of the hinge, push the black hinge insert out, noting the position of the dimple within the hinge.
You may need a small screwdriver to push the black hinge insert out of the hinge arm.
File down the dimple on the end of the black hinge insert.
Rotate the hinge insert and install it back into the hinge arm.
Reattach the hinge arm to the hinge track by following steps 3 and 4 in reverse order.
Check that the reveal — the gap between the window sash and frame, when the window is opened by 1 inch — is even on all sides.
If the window is still crooked, repeat steps 1 through 8 on the head hinge for windows manufactured before November 2006.
