Series 37 Quick-Tilt coil spring balances help support the sash in compatible tilt windows. If the sash feels unusually heavy, drops after being raised, or no longer stays open, the balance system may need attention or replacement.

• Flat-head screwdriver
• Phillips screwdriver
• Needle-nose pliers
• Putty knife, if needed
• Safety gloves
• Correct replacement Series 37 Quick-Tilt balance

Safety Note: Coil balances contain stored spring tension. Wear gloves, keep control of the balance assembly, and do not allow the coil to release suddenly.

1. Unlock the window and raise the sash approximately 3 to 4 inches.
2. Locate the tilt latches along the top of the sash.
3. Slide both tilt latches inward.
4. Carefully tilt the top of the sash toward you.
5. Support the sash with both hands.
6. Angle or lift one side slightly to release its pivot bar from the pivot lock shoe.
7. Release the opposite side and remove the sash.

Place the sash on a protected, stable surface where it cannot fall or damage the glass.

With the sash removed, locate the balance assembly and pivot lock shoe inside the jamb track. The pivot bar on the bottom of the sash normally connects to the metal cam in the shoe.

If the shoe needs to be repositioned, insert a flat-head screwdriver into the metal cam and carefully rotate it to the unlocked position. Maintain control of the shoe because the connected coil may pull it upward.

Move the shoe only as needed to create a comfortable and accessible working position.

Examine how the original balance is positioned and secured before removing it. Taking a photo can help confirm the orientation during reinstallation.

1. Support the balance assembly and maintain control of the coil.
2. Remove or disengage the fastener, cover, or retaining point used by the existing installation.
3. Carefully separate the assembly from the jamb track.
4. Remove the old balance without allowing the coil to snap or unwind suddenly.

Keep the original balance available for comparison until the replacement has been installed and tested.

1. Compare the new balance with the original to confirm the handing, housing style, and weight rating.
2. Position the replacement in the same orientation as the old balance.
3. Seat the balance assembly properly within the jamb track.
4. Secure it using the same mounting or retaining method used by the original installation.
5. Confirm that the coil is straight and that the pivot shoe can travel correctly within the track.

1. Position both pivot lock shoes at the same height.
2. Hold the sash at a tilted angle.
3. Insert one sash pivot bar into the cam of the first shoe.
4. Angle the sash as needed and insert the opposite pivot bar into the other shoe.
5. Confirm both pivot bars are fully seated.
6. Rotate the sash upward into the window frame.
7. Allow both tilt latches to engage with the jamb.

Keep both hands on the sash until it is fully seated and supported by the balance system.

Raise and lower the sash several times. Properly matched and installed balances should allow the sash to move smoothly and remain in position when released.

Confirm that the window:

• Opens and closes smoothly
• Stays open without dropping
• Does not slam shut
• Sits evenly in the frame
• Locks properly
• Tilts inward and returns to the frame correctly

If the sash still feels heavy, uneven, or difficult to operate, stop and recheck the balance rating, pivot-bar engagement, shoe position, and installation on both sides.

• Wear gloves to help protect against sharp metal edges.
• Maintain control of the coil and shoe whenever spring tension is involved.
• Support the sash with both hands during removal and installation.
• Match the balance weight to the sash and overall balance configuration.
• Keep the left and right sides evenly positioned.
• Do not force a component that is not seating correctly.
• Consider replacing both sides when the balances are the same age and one has failed.

How do I know whether I need a Series 37 Quick-Tilt balance?

Compare the existing balance housing, pivot shoe, dimensions, handing, and markings with the Series 37 product images and specifications. Do not rely on appearance alone.

How do I select the correct balance weight?

Check the number marked on the original housing or determine the sash weight. The balances on both sides should combine to support the sash according to the product configuration.

Should both balances be replaced?

Replacing both sides is generally recommended when the balances are the same age or one side has failed, helping maintain even sash support. Confirm that both replacements have the correct configuration and rating.

A properly matched Series 37 Quick-Tilt balance can restore smoother operation and help the sash remain securely in position. Careful handling, correct balance selection, and proper pivot-bar engagement are essential to a successful installation.