How to Replace a Window Sash Pulley

If you having problems with opening and closing a window in your home, a faulty sash pulley could be the culprit. The window sash in your window is open and closed with a series of cords and pulleys. So, a defective pulley can cause problems that will need to be corrected. This how-to guide will show you all you need to know.

Step 1 - Pry Away Window Stops and Nails

Use a pry bar to pry away the window stops and nails that hold it in place.

Step 2 - Remove Window Sash

Score painted edges with a utility knife to free them from keeping the window sash in place. Next, raise the sash a few inches and then tilt towards you to free it from the track. Remove the sash.

Step 3 - Remove Sash Cords

Remove the screws from the weight cavity panel and remove the panel. Then remove the weight. Cut the cord and remove it.

Step 4 - Remove Old Pulley(s)

Remove the two screws that hold the pulley assemble in place. Remove the assembly.

Step 5 - Install New Pulleys

Insert the new pulley assembly into the slot and secure with two screws.

Step 6 - Install New Cords

Thread the new sash cord into the sash and pulley.

Step 7 - Install Window Sash

Reverse the removal process and re-install the window sash.