This item as it's shown in the photos was in working order when it was purchased and is currently in storage. The AIR N ARC 300 Hydraulic ALL IN ONE Power system eliminates the need for a separate engine and reducing maintenance. This unit combines a 40 CFM rotary air compressor, 300A welder, 50A 12V charger, 300A 12V/24V booster and a 7kw peak generator. The unit was in working order when it was put in storage for around a year ago. In addition there are oil storage units and controls which can be used in conjunction with the unit.