Back up parameters
Replace batteries (with power on!)
Blocking the axis
Rust preventative coating (grease, LPS#3 etc)
plastic sheet over the machine
Stretch wrap around, and make sure the door and control are secure
Packing tape around the stretch wrap.
I know this sounds like a lot, but it will keep tarp burns down to a minimum, it will give you an extra rain barrier, and piece of mind. Worth the 50 bucks in material.