PLACE potatoes in large saucepan. Add water to cover potatoes. Add about 1 tsp. of salt to water, if desired. Cover; bring to a boil over high heat. Reduce heat; simmer 15 to 20 minutes or until tender. Drain; cool slightly.
CUT each potato into quarters. Place in medium serving bowl.
PLACE beans in large saucepan. Add water to cover beans. Cover; bring to a boil over high heat. Reduce heat and simmer 5 to 6 minutes or until tender-crisp. Drain and rinse with cold water. Add to potatoes in bowl.
WHISK oil, vinegar, sugar, garlic and salt in small bowl until blended. Pour over potato mixture. Toss to coat. Cover and chill 2 hours.
ADD mayonnaise, onion, celery and eggs to potato mixture. Sprinkle with dill. Stir until blended. Cover and chill at least 3 hours. Season with salt and pepper to taste before serving.
(1/4 of recipe)
*Percent Daily Values are based on a 2,000 calorie diet