Getting the cash can out of the way certainly helps. But you can get to it with it in place.
Maybe a stupid question, but have you pulled the handle all the way down? If you don't, the ratchet assembly will not let it move back up.
To remove it. there are three nuts that correspond to the 3 bolts on the outside. Use the right sized hex wrench to remove the pull handle (back side of the plastic cap). Remove those 3 nuts, and the whole assembly will come out from the inside.
If the reels are spinning with only pulling the handle a small amount, the switch must be messed up. It's been a while since I messed with one and am not sure if you can get to the switch without removing the assembly.