I want to disassemble this to service BB.

1) Does the crankbolt cover unscrew or pry out? I would like to not damage this if possible.
2) Is this tool what I need to remove the lockring on the BB? I know I can get it off with a punch or pipe wrench but would like to do it properly.
3) After the lockring comes off, is there a specific tool to remove the next part, or can I do it with a large adjustable wrench?

Amazon.com : Park Tool (109917) HCW-5 Lock Spanner : Bike Hand Tools : Sports & Outdoors