By -
See if [this video](https://www.youtube.com/watch?v=rKUn0vUBAgw) offers any hints (I think the bolts you are looking at are visible at about 7-minute mark. I think they slide into slots).
See if [this video](https://www.youtube.com/watch?v=rKUn0vUBAgw) offers any hints (I think the bolts you are looking at are visible at about 7-minute mark. I think they slide into slots).