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Move it from one side of the yard to the other in even rows until the whole area is properly aerated. Don't cover the entire yard more than once. Only double over areas that need extra aeration. If your yard requires further aeration, run the yard aerator in the opposite direction from the first pass you took to maximize aeration. Leave the cores of earth alone after you aerate. These cores will compost over time and benefit your yard with nutrients. Keep in mind that it might look unsightly for a little while. If someone asks about it, then you can just make a joke and say you have very healthy earthworms. your yard after you aerate it. Spread compost, sand, peat moss, or another fertilizer over your yard to help your lawn spring back from aeration. The fertilizer will be absorbed easily through the newly-made holes.
Position the yard aerator in one corner of the yard. Fertilize