- 1). Unplug or disconnect the power to whichever piece of equipment you are working on.
- 2). Put on your eye protection and gloves.
- 3). Locate the capacitor and disconnect it from its power source. This is usually accomplished by pulling off the rubber cap on the top of the capacitor.
- 4). Take the screwdriver and use its tip to bridge the gap between the two lead terminals. This will cause a spark, which can sometimes be larger than expected.
- 5). To make sure that the capacitor is fully discharged, perform Step 4 again. Or, you can take an incandescent light bulb and touch part of its screw base to one of the terminals. If it lights up, there is still a charge on the capacitor.
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