Replacement of the laser glass

To replace the laser protective glass, ensure that you are holding the heating module by one hand. Then pull out the clasp placed on the top of the inner part of the lid. By lowering the heating module, you will get access to the laser protective glass socket.
To open the laser protective glass socket, you need to unscrew the wings on the right side of it. While doing so, remember to hold the metal frame and then gently draw out the socket. Now you can take the glass out of the frame and replace it with the new one.

To assemble the laser glass protective socket, slide the tabs into the holes on the left side of the heating module. Press the module gently to the lid and then screw the wings on the right side.
Close the lid and protect is by the metal clasp. Clean glass once more to get rid of any finger marks or stains.