Army Pvt. Manuel Cuevas, whose parents are Mr. and Mrs. Manuel Cuevas of 330 Concord drive, Chicago Heights, has arrived for duty in Lud-wigsburg, West Germany.He is a power generator repairman with the 34th Signal Battalion. His previous assignment was at Fort Bel-voir, Va.Air Force A1C Jerome Konrad has arrived for duty at Mather Air Forcebase, Calif.He is a security specialist with the 320th Security Police squadron, and was previously based at Incirlik Air base in Turkey.