1. Ensure that the dryer is unplugged from the power source to prevent any accidents.
2. Remove the housing of the dryer. Each model may have different steps to remove the housing, so if needed consult your dryer's manual for specific instructions.
3. Locate the idler pulley assembly, which typically resembles a large circular wheel.
4. Remove the belt that wraps around the idler pulley and the drum (usually achieved through the spring tensioner), then remove the mounting bracket that secures the pulley to the dryer frame.
5. Use a wrench or socket set to loosen and remove the nuts or bolts holding the idler pulley in place.
6. Remove the old idler pulley assembly by carefully lifting it out of the dryer.
7. Clean the area around where the old idler pulley was located, and inspect for any damage to the surrounding parts.
8. Take the new idler pulley assembly and gently insert it into the housing where the old one was removed.
9. Align the mounting holes on the pulley assembly with the holes on the dryer's frame, and secure it back into place using the bolts or nuts removed earlier.
10. Reconnect the belt around the idler pulley and the drum, ensuring proper tension.
11. Replace the dryer housing and all removed components.
12. Reconnect the power cord and turn on the dryer. Ensure it functions correctly before closing the housing completely.
Remember to consult your Kenmore dryer's manual for any specific instructions or additional steps related to your particular dryer model.