I don't know what happened there but your img tags, except the last one, had lost the final ] (square bracket). Below in the quote I have put each one on a separate line and added the final ]
Originally Posted by Dab of oppo
A few more pictures of how it all goes together.
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]

It was the big hollow bolt on the last picture that came loose.

Peter

[Linked Image]