To begin removing the hammer, press hammer pin from one side with a punch.
Remove hammer pin.
Remove tension from hammer spring by pressing the left leg to the right then easing forward, then the right leg to the left then easing forward.
The hammer can now be removed.
Reassembly is in the reverse order of the last few steps.
These are the parts you just removed.
This is how those parts go together.
At the bottom rear of the trigger boat is a ball bearing.
To remove the ball bearing press it to the side and out with a punch.
To reassemble press it back in from the side.