Thousands of casino hotel service workers at more than half of Atlantic City ’s 12 casinos walked off their jobs onto picket lines Friday. The workers, members of Local 54 of UNITE HERE, chanted and carried picket signs that said, “No Contract No Peace” outside seven casinos starting at 6 a.m. Union negotiators reached agreement late Thursday with Trump Hotel & Casino Resorts, thereby averting a strike at Trump Taj Mahal, Trump Marina and Trump Plaza . At Caesars Atlantic City Hotel Casino, hundreds of striking workers marched outside the casino’s entrances. Kamal Sabbagh, 43, a bartender at Caesars, carried a red and white picket sign that said, “On Strike.” “We’d like to go back as soon as possible, but not without obtaining our goals. We mean business, 100 percent,” he said. Elsewhere throughout the resort, everyone from bell captains to bartenders, pastry chefs to porters walked picket lines at Harrah’s Atlantic City , Showboat Hotel-Casino, Bally’s Atlantic City , Caesars Atlantic City, the Atlantic City Hilton, Resorts Atlantic City, and the Tropicana Casino and Resort.