SHORTCUT FOR REMOVING JUST HAMMER and/or PAWL in New Models:
Recognize, when JUST NEEDING to remove the hammer and/or pawl, you do not need to hassle with the PESKY LOADING GATE SPRING, pull the trigger pin, nor trigger/transfer bar. Once you remove the grip frame, the hammer pin is the only other part you need to remove. After that, just pull the hammer back and all the way down, then depress the hammer plunger up into the base of the hammer with a small tipped screwdriver to clear the trigger extension with hole in it where the transfer bar connects to it. Let the hammer & pawl fall back, down and out. Reinstall the hammer and pawl back in the same way they came out. Push the plunger in by pushing it against the trigger extension just like you did with the tip of the small screwdriver, and the hammer will slip by the trigger extension. Piece o' cake.
NOTE: Occasionally a hammer change that doesn't cock or just barely cocks is because it's hitting the back of the slot in the grip frame. I have had to slightly lengthen the slot with a few file strokes.
If either the trigger or hammer pin are snug fits, after they're removed the first time, it's the opportunity to polish them so they're slip fits to put back in and remove the next time.