When I removed the Shimano 5800 cassette from the Hope 4 Pro hub I noticed that there is a significant axial play of the freehub body. Also I am able to slightly twist the driveside spacer from side to side. The hub have seen 3000 km. The QR was loose when I was removing the wheel. I replaced the cassette, mounted the wheel and tightened the QR properly.
The freehub body play disappeared and the hub seems to roll well, there are no unusual sounds when I ride the bike. But I plan the 3000+ km trip with approx. 15 kg of additional load and I want to know whether I can rely on this hub. I don't know its internals. Is there anything inside that can break after further equal amount of wear and stop me in the middle of nowhere?
Edit: I found the exploded view of the hub
What may cause the play of the freehub body? Maybe I closed QRs too tight and the axial load damaged the bearings?