Negotiations between Caterpillar and the United Auto Workers continued through the weekend as the expiration of the current contract looms.
The current six-year contract for UAW workers expires on Wednesday. The company says it presented a revised economic proposal to the union on Friday for consideration. Wages, benefits, 401(k)s, and vacations were among the biggest concerns in a survey of union members last year.
More than 98 percent of UAW members voted to authorize a strike last month. That includes the locals in the Peoria area, Decatur, Pontiac, and York, Pennsylvania.
It's unclear if the union's bargaining committee will call for a strike if an agreement isn't reached this week. The UAW recently increased strike pay to $500 a week.
Caterpillar is training salaried employees as a contingency to continue operations if a strike does happen.