The back latch on the 4/4t/et al, is lifted by a ring within the rewind
shaft's holder. When you pull up on the rewind shaft, the lips on the
end of the fork on the rewind shaft pull this ring up, and the ring
lifts a tab on the back latch. It's very easy for the tab of the back
latch to slip over this ring, especially if there's glue in the back
latch gumming things up <g>. When this happens, pulling up on the
rewind shaft has no effect since the tab of the back latch has slipped
below the ring.
It this is the problem, it's a tricky fix, and not one easily described
or even demonstrated. If you've got a "dead" 4 body, take the mechanism
apart and you'll see what's going on.
"John W. Sloane, DMD" wrote:
>
> Hi, All,
>
> I was just re-checking my Black 4Ti "Peacock" that I had listed on eBay,
> getting ready to put it in the box, and ended the listing. I tried to open
> the back, and it won't open. When I pull the knob up to open it, it pulls up
> perhaps a little farther than normal, offering no resistance, and to the
> point where the small indented ring machined into the shaft pulls up about
> 1/8" or so, which seems about right, but nothing seems to be engaging the
> spring unlocking mechanism for the back. Normally, the mechanism engages at
> the point where the little indentation in the shaft first becomes visible.
> Any ideas??? John H.???
>
> Thanks,
> John
>
> John W. Sloane, DMD
>
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