For anyone who has got this far and is still stuck; the screw undoes if you gently lift the locking washer over the stop. Undoing the screw and lifting for each 'ear'. Once the locking arm is completely off the screw the screw can be gently knocked out.
I have a DW110 that I bought 30 years ago and I am having the same problems now that I am refurbishing it.
Is it possible to let me know where you got the manuals from and provide the links mentioned?
More urgently how do you get the two parts of the carriage apart? The only way that I can...
