Trigger Removal Question

[Olympus]

I need a little assistance from someone as to how to remove a Timney trigger. I'm no gunsmith, so I had a gunsmith install this Timney on a Mauser action and set the pull weight. I'm trying to remove the trigger to have the barrelled action reblued. I don't know exactly how to remove the trigger and I don't want to start loosening bolts and loose my trigger pull setting. So how exactly do I remove the trigger fromt he bottom of the action? Can it be done without messing up the pull setting?

Probably should have posted this in the Gunsmithing section now that I think about it. Sorry...