June 3 (Bloomberg) -- Copper fell for a fourth day in New York, erasing a gain as the dollar rebounded from a decline. The U.S. Dollar Index, a six-currency gauge of the greenback's strength, was little changed after sliding as much as 0.6 percent. A stronger dollar makes metals priced in the currency more expensive in terms of other monies. Copper had added as much as 1.4 percent on speculation that reports may show improvements in the U.S. job market and factory orders. "Metals pared gains as the dollar strengthened," Steve Hardcastle, an analyst at Sucden Financial Ltd. in London, said by phone. "It looks like the dollar is getting support from positive U.S. economic data." Copper for July delivery fell 2.6 cents, or 0.9 percent, to $3.0145 a pound at 7:53 a.m. on the Comex in New York. Copper for delivery in three months dropped 0.1 percent to $6,660 a metric ton on the London Metal Exchange. Figures due today from ADP Employer Services will show businesses added 70,000 jobs in May, according to economists surveyed by Bloomberg. Growth in factory orders strengthened to 1.8 percent in April, a separate report may show. Manufacturing in the U.S. expanded more swiftly than expected by economists in May, and construction spending in the country gained the most since 2000 in April, reports showed this week. Construction uses a quarter of all copper output, according to the Copper Development Association. Stronger Dollar LME copper had slid 4.5 percent in three sessions at yesterday's close and dropped for a second straight month in May, sinking on concern about Europe's sovereign-debt crisis as well as a stronger dollar. The dollar index advanced for a sixth month in a row in May as the euro, down 14 percent this year against the U.S. currency, slumped. "Metals are going to struggle to gain any upside momentum until the euro finally finds some stability and the dollar tops out of this run," Alex Heath, head of industrial-metals trading at RBC Capital Markets in London, said by phone. The increase in jobs predicted for the ADP report, due at 8:15 a.m. in Washington, would be the best performance since the recession began in 2007, according to the survey. The factory- order figures are due at 10 a.m. Also at 10 a.m., the Institute for Supply Management may say its index of non-manufacturing businesses, which covers almost 90 percent of the U.S. economy, rose to 55.6 from 55.4 in April, according to a Bloomberg survey. The Labor Department may say tomorrow payrolls climbed by 515,000 in May, the most since 1983, the median forecast shows. Smaller Stockpiles Inventories of copper tracked by the LME slipped for a 12th day today to 474,300 tons, the lowest since Dec. 16. Bookings to remove metal from warehouses rose for a second day, gaining 3.9 percent to 23,275 tons, still 35 percent below this year's high in March. "Stocks remain high, and drawdowns will likely slow as we move into summer," RBC's Heath said. "Perhaps we even see increases that will also act as a significant drag anchor until we move into the fourth quarter." Zinc for three-month delivery on the LME fell 1.3 percent to $1,778 a ton after reaching the lowest intraday price since August. Nickel dropped 0.9 percent to $19,465 a ton and aluminum advanced 0.3 percent to $1,990 a ton. Lead fell 1.1 percent to $1,678 a ton and tin was unchanged at $17,650 a ton. --With assistance by Courtney Schlisserman in Washington. Editors: Dan Weeks, Stuart Wallace.

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