Start by sliding up the bottom sash to a position where you can tilt it towards you. Now slide down the top sash and tilt it towards you and slide it up as high as it can go. Release the tilt arms using a edged object such as a screwdriver. To release the tilt arm place the edged object between the spring clip and the black button. Repeat the instruction on the other side. By resting the top sash on the bottom sash you can release the sash from the brackets by unscrewing the screws easily. Please note that one screw sits behind the reveal (refer to video). You should now be able to slide the top sash off the brackets.


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