If you have a removable cover, cut along the casement cover with a utility knife to slice through any paint or stain that seals it on the window jamb. Remove the trim screws along the top of the casement cover. Gently pry the cover loose (Photo 3).
Unscrew them to remove the casement cover and access the crank innards (Photo 4). If there aren't any trim screws, the casement cover is probably nailed or stapled in place. Slide a stiff putty knife between the window jamb and casement cover. Carefully pry up the casing so you don't damage the wood parts.
How to Repair Casement Windows. Pinterest. Casement windows are usually made of wood or metal. Remove the operator arm. Wire-brush away any rust and clean the arm with mineral spirits or other solvent. Clean the gears with solvent and a toothbrush, then wipe with a rag.
If you have a problem with your casement windows and want to repair them quickly and easily, you will need a few home improvement tools and a couple of .