Or push it from the other side - I think sneed is saying it's possible to screw the cover on with the DWO attached though, rather than getting the datewheel itself back on, while the cover is already attached (by getting the spring out of the way) . I had mentioned the spring method in my post, I just know that the first couple times I tried it, the DW wasn't settled 100%, it jammed, and some teeth on the calendar gear got mangled. So I didn't really think that method was worth someone trying if they didn't already know what they were doing. Now that I've done it a few times, it's WAY easier than realigning the overlay. Way way easier.