You can get a manual from Colt
Ask a gunsmith for help
check out: http://stevespages.com/page7b.htm
Best left to a gunsmith
Follow the instructions in the owner's manual.
If you don't have a manual, find a gunsmith and ask for help
Best to ask a gunsmith for help
Ask a gunsmith for help
take bolt off
Field stripping any Model 1911 A1 45 military pistol is the same no matter the manufacture. Rather than try to tell you, here is an excellent link to a video showing how it is done. It is very simple if done correctly. I also own the exact same pistol as yours and treasure it. Mine was made in 1917.
There is no "field stripping" per se. Open the action and clean with rod/brushes/patches.
You would best be served by asking a gunsmith for help