Going from memory
Disconnect the PTO.
Lower the deck as far as it will go.
Rotate the handle thingy at the front to release the tension.
Undo the hangers from the deck lift mechanism.
Undo the 2 front rods that support the front of the deck
Remove the handle thingy bracket at the front.
Slide the deck out to the side.
Before I start, I usually rotate the rear guage wheels 90 degrees so that the deck will roll out easily.