Bring some blankets or padding of some sort.
1. Remove all balls from the game.
(either in settings or by slightly lifting the playfield and by hand actuate the solenoid that fires the ball into the trough. catching the balls as they go into the shooter lane.)
2. Find key inside coin door on hook to fold down the backbox.
(I usually keep the backglass up in the cab with me)
If it is a translite and not glass I will leave it in the machine.
3. Wrap the center/back of the machine in blanket or plastic wrap. Strap the folded header onto the main cabinet. Either with zip ties or with a moving strap.
(Make sure you keep all artwork covered with blanket or wrap)
4. Remove the back legs and place the machine gently on the ground.
( I would set down pad or cardboard)
5. Pivot machine onto its back.
(you will notice on the back of the machine lower half there are 4 white tabs that stick out.) This is what the machine sets on for transport or storage.
6. Remove front legs. (make sure you keep track of keys and leg bolts)
7. Pick up with dolly from the bottom side of the machine (opposite the glass side)
8. Strap to dolly ensuring that no art is going to be rubbed off by metal or moving straps.
I usually move with a pinball dolly but this is reverse order to getting pins new in the box.
If there are any errors community will correct
Best of luck and remember Backglass, keys, legs and leg bolts.