When I see large capacitors (for me it’s more girth than my little finger), I have alarm bells going on. One « soda can sized » can definitely kill you. It should be discharged before messing with it. You can buy capacitor drains (basically a big ass resistor) that you put across the capacitor’s legs to drain the energy in it.

Some do it with an insulated screwdriver but that’s dangerous because it’s a short, can ark, fuse the driver to the capacitor, and result in a bad day.