Open the the moveable arm and make it straight (180 degrees) or in line with the other.Take the screw off of the black cover at the elbow (1 screw). Lift from the round part and lift off. Then loosen the two screw just inside the cover. This will allow the flywheel to spin and you should now get a read out. If the flywheel does not spin then you need to replace that piece. Gently tighten the two screws and put the cover back on. Hope this helps!
The first thing I would do is to replace the battery after cleaning the contacts thourghly. Hope this helps. Thank you.
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