Squealing and chewing up the belt.
There is not much that will chew up a belt in a Belt Drive WP-KM washer other than a sized water pump, how fast did this belt get chewed up, what is getting hot, Motor pulley, clutch pulley ?, if the motor pulley has any rust on it it will chew up a belt pretty fast, you really have to look the machine over and it should be pretty easy to figure out what is causing the belt wear and noise.