How to Tighten a Washing Machine Belt. The washer isn't spinning, spins too slowly, or is making an awful squealing sound. What to do?
Unplug the washer and turn off the water faucets.
Disconnect the water hoses and the drain hose and pull the washer away from the wall, leaving yourself enough room to work behind the appliance.
Lay an old towel down to kneel on and soak up any water that leaks from the hoses.
Remove the rear access panel.
Locate the motor. The rubber drive belt goes around a pulley wheel attached to the motor.
Press on the belt. If it gives more than ¾ inch or so, it needs to be tightened.
Loosen the mounting nut for the motor and push the entire motor to increase the tension on the belt.
Hold the motor in place and tighten the mounting nut.
Make sure you don't tighten the belt too much or it will break. You should be able to press on it and feel it give just slightly.