While I was looking for something else, I found a PDF version of the Field Manual on the M1917s (Colt and S&W), "Prepared under direction of the Chief of Cavalry" in 1941.
It's pretty detailed and probably of interest to all M1917 aficionados, particularly those who are disassembling or otherwise working on one. Note the manual covers the Colt as well as the S&W.
I nosed around and found a link where you can download the PDF for free. Scroll about halfway down the page until you find the
Army Field Manuals. This one is
FM 23-36. The web site asks that you only download what you need, so be reasonable and respectful of those wishes.
Old timers here may already have this but I thought it couldn't hurt to let everyone know about it.
us joint services manuals