I acquired a 2-way Derbyshire Cross slide. It has some minor issues: A missing alignment shoe.... And some excessive backlash What I'd like to know is how to disassemble the cross-slide to clean out the old grease that is in it and to then check the lead screw to lessen the backlash some. Any advice, suggestions or links to other info would be appreciated. If there is a book in the NAWCC library, a suggestion for that would be welcome. Thanks!