Thought I would post this for future reference. First off, "Thank You" to bertsmobile1! I found your post on here and it really helped me pull my tank out to repair! I have a couple of added suggestions to make life a bit easier for someone else.
#1 Don't forget to pull the mower deck height levers rubber handle off (as bertsmobile1 stated).
#2 Cut (2) - 3 ft lengths of a 2x2 to put under each fenderwell to raise the rear up (gradually on each side) until high enough to remove tank. (I figured this part out when re-installing tank. I actually used a maul and a mattock)! LOL
#3 I removed the 4 bolts nearest the rear (under where the battery was) and only loosened 6 turns, the front 2.
#4 Make note (I didn't notice at the time) The bolts that hold the seat on, is a wide bar with the bolts attached. It WILL fall down once the tank is pulled out. So either put the nuts back on before pulling tank out, or do it after pulling tank. Saves a lot of naughty words!
I had a crack in my tank and it was leaking. I used a soldering iron to fuse cracks (after ridding the tank of ANY fuel and rinsing out well), then filled with water to make sure no leaks.Then used a plastic tank putty repair and after drying I slathered it with a layer of Epoxy. So far, so good! Hope my input is helpful.