Pretty good description that works for many WPC pins, BUT a populated TZ playfield is awful heavy...the most difficult part is reaching over the cabinet and trying to lift the playfield an additional 2' up in the air to clear the cabinet (make sure you're not doing it in a place with low ceilings).
On this machine I would lower the head, remove the legs as described, and lower the cabinet onto the floor (or a 2"x4" so that you can get your fingers under it later). Then remove the head and playfield. With the cab on the ground, you can straddle it (one leg on either side) to lift the playfield out. Much easier than trying to lift it out of a cabinet that's still on legs.