Servo questions

Can a servo use the robot arm? No
Can a Servo die of electrical shock - I don't know, but so far mine has not, and he has done a ton of work in making more bots.
Can a servo become a spell caster - If you have MCCC, yes, otherwise no. I used MCCC to turn one in a past game save.

They cannot die of electrocution. In fact, it does nothing negative to then. It maxes their charge need.

Awesome thanks for the info. Wish my servo could at least ride a broom lol