WINDOW MAINTENANCE The Learning Center Casement or awning windows are operated with a crank or lever. The windows open via an arm, which may be a single linkage arm, double sliding arms, or a scissors arm. By opening the windows fully, you can disengage the arm from the track, which permits you to lubricate the arm and track or to free the window sash for easier washing. If you have casement windows that are hinged on one side and swing out via levers or crank handles, open the windows fully and use spray lubricant to oil the hardware, including the crank or lever, the hinges, and the lock. With the arm disengaged, you can also service the operator mechanism. Look for a couple of screws on the housing cover to which the crank or lever is attached and remove them. Lift off the cover, apply a bit of light grease to the crank gears or opening levers, and then replace the cover. If the hardware and windows are old, you may want to consider replacing the windows. 8. How can I maintain the hardware on my casement windows? < back to list of questions about window maintenance 3245 Miracle Drive Murrysville, PA 15668 724-387-2991 PA Contractor ID PA001856