Be careful taking the actuator loose, because when you undo the bolts on the motor-end , and the positioner-arm end, that dish is gonna fall/flop on ya! I usually take the arm loose from the dish first, holding the dish with one hand, or leaning into it, to keep it from falling right back into the positioner-arm (it'll work perfectly for punching a giant hole in the mesh otherwise)
Once loose you can let the dish come all the way down to the pole, where you can start removing the bolts. Just remember there aren't a lot of bolts holding it to the mount, I have several that only had 4 bolts holding the dish/ring to the mount itself, pull those out and the dish may flop right off onto you, or the ground. *speaking from experience here lol*
Motor won't move once you take it off, and when you set your pole, and put the dish back on it, the dish should be pretty close to where it was when you removed it. If it's close to your home, shouldn't have to do much to re-align the tracking.