How to Troubleshoot & Replace Samsung AP5325135 / DC97-16782A Dryer Drum Support Roller Assembly

Replaced the dryer drum support rollers (front side) 

Found the problem and contacted you and the rollers where delivered the next day...perfect fit. 

Replaced the dryer rollers 

Replaced drum roller and belt idler pulley 

Replaced the dryer drum support roller. 

Replaced the idler pulley as it must have frozen and the drum belt kept on turning and melted the pulley. 

Replace wheel 

Took dryer apart, learning from past repairs. Inspected inside and discovered broken belt, broken support roller and broken belt tensioner arm. Ordered parts from Appliance Parts Pros. Installed new pars into dryer and reassembled. Works fine, and much quieter. 

Took the dryer apart found that the belt tensioner pulley had locked up. The belt had cut into the pulley. 

Replaced all four drum support rollers.