What are the steps to replace a chain on a Husqvarna 345 chain saw?

Start by making sure the chain brake is off, pull the hand guard fully back to the top handle, now remove the two 8mm nuts securing the side cover, screw the chain adjuster in the crankcase fully back toward the sprocket, assemble the guide bar over the guide bar bolts and slide it fully back toward the sprocket, now loop the chain over the sprocket and lay it inthe guide bar raiuls and around the guide bar nose, make sure the sharo endge of the cutters on the top of the guide bar are facing away from the machine ( as you loog at it, it rotates clockwise ) now align the hole in the guide bar with the adjuster pawl, re assemble the chainbrake side cover back onto the saw, and fit the bar nuts finger tight, adjust the chain adjuster so as the chain is a snug fit all the way around the guide bar, with a gloved hand pull the chain around the bar manually, so as to make sure it is completly seated in the sprocket and bar rails, re tension if needed, hold the tip if the guide bar up and fully tighten the bar nuts.
Job done.