Take apart a S & W revolver
I have done so and have found it was best not to. You can open up the side plate and spray with carb cleaner..blow out with comprssed air,let it dry and lube (minimal amount). When cleaning I have found that it really was not all that dirty.
I had a pin break off on me on model 24 when I opened it up jand I never did figure out how to postion that spring mentioned above in a model 29...what a PITA... I'll never do that again!
I have taken apart Ruger Blackhawks...a bit tricky but comparitively easy.