When we bought it we noticed the bed ends needed a bit of sorting out, the frame work was broken and repaired with an angle brace and rivets on one and the other was broken and not repaired. We also noticed the ply had got damp and de-laminated on the bed ends in places and one had been damaged at some point. One of the bed bases had also gone a bit wavy so as Mrs P likes a firm bed we decided to replace that as well.

We replaced the bed base with 6mm ply instead of 4mm as we think the difference in weight is negligible. When we took the ply off the bed ends we noticed they are only welded on 2 sides of the box section probably to allow the ply to sit flush, so we have welded up that side too and ground it flat to give it more strength and stop them twisting when putting them up.
We tried to source some new hinges but can't find any at the moment so we have repaired the old ones and zapped a weld on them to stop them opening up again.

Wavy bed base:
[You must be registered and logged in to see this link.]
Broken corners:
[You must be registered and logged in to see this link.]
[You must be registered and logged in to see this link.]
Corners before and after welding:
[You must be registered and logged in to see this link.]
[You must be registered and logged in to see this link.]
Job done:
[You must be registered and logged in to see this link.]