Hi Max, based on your post yesterday, I tried a few ways for the centre bolt to provide some resistance to the “Part 1”. Initially a thin metal washer under the head of the bolt or under Part 1, then a fibre washer, but the assembly was being locked up completely, or still not causing enough resistance. I then tried a rubber o-ring under the bolt head, and the pawls were then being (inconsistently) activated. The o-ring was being squeezed out from under the bolt, so obviously not a satisfactory long term solution.
Your post today though filled in more gaps in my understanding of the operating principle. I had seen the split in the plastic, and metal split ring, but didn’t realise that was supposed to provide clamping on the bolt – it’s quite loose really. So now I’ve put a smaller o-ring on the bolt, and that should get squeezed down into the gap, rather than out from the bolt head. That seems to work better and it now grabs more consistently. A couple of photos included to illustrate the design of this one.
I don’t think anything else is broken – the problem being the looseness of the bolt in the centre hole.
