Definatly a two man job. I suggest you put a pad down to protect your floor. Remove the filter, grill, and bolts per instructions. Everything is straight forward. Move the frame back 1/2 to 1 inch then tilt the frig back on it's side about 4 inches. If the frame doesn't drop down, move it back until the front of the frame comes of the front lip of the frig. Place a block under the frig lip NOT the frame and WATCH YOUR FINGERS. The wheel should be hanging down. Just pull out the pin, replace the wheel (make sure you have it facing the correct way) and tilt back and pull the blocks. Move the frig back in place and replace the bolts. Took me and a buddy less than 30 minutes.

its not that hard to replace. may need help to tilt fridge on one side so you can get to the bottom to remove wheel.Had to undo all four corner screws/bolts to loosen bottom section and slowly pull out base frame which holds the 4 wheels. this frame is also holding the compressor and fan so be careful.replace wheel and slowly put frame back to position and screw back bolts. pull back fridge to upright position. leave unplugged for a day or two to allow gas to come back to normal level as we had tilted it.plug it back and it works.
thanks
Anoop