I have a walking aid called an Alinker http://www.thealinker.com/
It looks like a bicycle but it has no pedals and any bike shop can service it.
My issue is the seat it's a older style so has 2 bolts under the seat mounted on the rails and I accidentally unscrewed all the bolts and the triangle shaped piece came out. I have the piece flipped upwards and its on the bottom of the rails. Can anyone here explain how to put this piece in the correct way. I am attaching a picture of my Alinker and the part in question.
I don't know much about bikes so please explain in easy terms.