Ordered a replacement part kit. Watched the video, didn't look like my unit. When the parts arrived, they didn't look like old parts - some metal instead of plastic, Took old parts off. Pondered for a while, and considered calling. Then figured out how to fit new parts to substitute for old ones. Worked! Would have been much simpler and easier if a descriptive sheet had been included showing how to substitute new very different parts for the old ones.