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(The search coil should be parallel with the ground.) Tighten the knobs just enough to keep the search coil from rotating or wobbling. INSTALLING BATTERIES You need six AA batteries to power your detector. Cautions: ? Use only fresh batteries of the required size and recommended type. ? Do not mix old and new batteries, different types of batteries (standard, alkaline, of rechargeable), or rechargeable batteries of different capacities. Text Box: ADJUSTING THE STEM Follow these steps to adjust t