Technical manual TM (series). 5-5009. Generator set, electric, portable, diesel-driven, skid-mounted, 30 KW, 60-cycle, 120/208-OR 240/416-volt, 3-phase convertible to 50-cycle, 120/208-OR 240/416-volt, 3-phase, Stewart and Stevenson model WGD-3012 (less engine); Dec. 1954.