Speed Queen Dryer: Drum Belt Slipping or Screeching -... | appliancefaults.com

Technical Background:

The dryer's motor turns the drum via a belt. The belt is tensioned by an idler pulley. Drum support rollers allow the drum to rotate freely. The MCU monitors motor current. High friction will increase motor load and potentially trigger a fault if sustained.

Symptoms:

The homeowner reports the Speed Queen dryer drum either stops turning during operation, or makes a loud screeching noise while tumbling. Clothes may not be drying effectively, or the dryer may stop mid-cycle.

Possible Causes:

Worn or glazed drum belt
Worn drum support rollers
Worn or damaged idler pulley
Overloaded dryer drum
Debris or lint buildup around drum and belt
Motor pulley wear

Solution:

1

Unplug the dryer from the 120V AC outlet and disconnect the vent duct.
2

Remove the dryer's front panel or access panel (refer to the service manual for your specific Speed Queen model). Typically requires a 1/4-inch nut driver.
3

Visually inspect the drum belt for wear, glazing, cracks, or damage. Note the routing of the belt around the drum and pulleys before removal.
4

Check the drum support rollers and idler pulley for smooth rotation. Replace any rollers or pulleys that are worn, noisy, or difficult to turn.
5

Remove any accumulated lint or debris from the drum, belt path, and around the motor and pulleys. Use a vacuum with a brush attachment.
6

Install a new drum belt, ensuring it is routed correctly around the drum, motor pulley, and idler pulley. Refer to the dryer's diagram.
7

Reassemble the dryer, reconnect the vent duct, and plug it back into the outlet. Test the dryer's operation.

Safety Warning:

Disconnect power to the dryer at the breaker panel (Lock Out, Tag Out - LOTO procedure) before performing any repairs. Some components may retain a charge; discharge before touching. Be aware of sharp edges inside the dryer cabinet.

Prevention:

Clean the lint filter after every load. Periodically (every 6 months) inspect the drum, belt, rollers and idler pulley for lint buildup and wear. Avoid overloading the dryer.

Expert Tip:

A common issue is the idler pulley arm seizing up. Apply a small amount of high-temperature grease to the pivot point of the idler pulley arm during reassembly to ensure smooth operation and prevent future squeaking.

Frequently Asked Questions

•How do I properly tension the drum belt on my Speed Queen dryer?

The idler pulley typically has a spring that provides the correct tension. Ensure the belt is routed correctly and the spring is in good condition. The belt should have a slight deflection when pressed midway between the pulleys, about 1/2 inch.

•What type of grease should I use on the idler pulley?

Use a high-temperature lithium grease. This type of grease will withstand the heat generated by the dryer motor and prevent the pulley from seizing up.

•How often should I replace the drum belt on my Speed Queen dryer?

The lifespan of a drum belt depends on usage. Inspect it every 6 months for wear. If you notice any cracks, glazing, or fraying, replace it immediately. A typical drum belt lasts 3-5 years with average use.

Speed Queen Dryer: Drum Belt Slipping or Screeching - Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I properly tension the drum belt on my Speed Queen dryer?

•What type of grease should I use on the idler pulley?

•How often should I replace the drum belt on my Speed Queen dryer?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: