FARGO (AP) - A union official says the Case-New Holland plant in Fargo is planning eight weeks of temporary layoffs next month but most of the workers will be shifted to the plant's tractor line.

Chris Skeldum is the president of the International Association of Machinists. He says the move is in response to slack demand for construction equipment made at the plant.

Skeldum says the demand remains strong for tractors made in Fargo, so most of the workers on the construction equipment line will move to the tractor line.

The CNH plant is one of Fargo's largest employers. More than 600 people work on the assembly lines at the plant, making about 20 different types of front-end loaders and farm tractors.