PORTLAND, Ore. — Daimler Trucks North America will recall 540 workers to three of its manufacturing facilities in North Carolina, the company announced.

Recalled workers are expected to be in place by mid-July at the company’s truck manufacturing facilities in Mt. Holly and Cleveland, as well as at the components and logistics plant in Gastonia.

Daily build rates at the Mt. Holly and Cleveland plants are rising sharply in response to strong 2010 order activity.

Customers have placed orders for more than 21,400 EPA10 vehicles to date, including 16,565 Freightliner-brand trucks.

In April, DTNA and the UAW reached agreement on new labor contracts for the plants.

DTNA says its combined Class 8 market share for the U.S. and Canada leads the industry at 34.2 percent April year-to-date, and that DTNA Class 8 orders represent approximately 36 percent of the industry backlog.