Repair is the ability to take apart and/or fix mechanical gadgets, vehicles, weapons, and simple electrical devices. It also covers the use of demolitions and explosives.
How long a Repair roll takes is up to the GM and the complexity of the task. Fixing a Wound on a compact car in a post-apocalyptic setting might take an hour. Fixing a Wound on the same car in the present day might take four hours if the character wants it painted, polished, etc.
Success means the item is functional. A raise on the Repair roll halves the time required.
Tools: Characters suffer a minor penalty (−1 to −2) to their roll if they don’t have access to basic tools, or a major penalty (−3 to −4) if the device requires specialized equipment.
Electronics: Repair can be used to repair electronic devices, but is limited by the hero’s Electronics skill. Use whichever skill is lowest.