This site that is very nice to host this forum is very reasonably priced in its manuals... Ford 3000 I&T Shop manual
Has a good set of instructions and we all consider it a must have for most tasks. Was looking it over few days ago during a break working on my 3000 gasser and remember seeing the pics for timing the fuel pump.
If memory serves, there are 2 kinds of pumps, and am not familiar with differences. The brains of the outfit should be able to help you more when it comes to diesels.
Don't be afraid to use the search features at the top right on "Modern view" where diagnosing and dealing with those pumps has been discussed many times.
Welcome to the forums!