Disconnected power supply from wall socket. Removed the top and front covers of the dryer, released the belt tensioner to remove the belt from the pulleys . Removed the drum and tagged all the wires of the heating element before removing it. Cleaned all dust ,trash and lint from each of the parts , installed rear drum bearing and reattached heating element back in place. Set drum in position and replaced belt onto the pulleys. Installed front housing on front cover and attached the remaining top and control panel covers on dryer. Plugged in power cord and ran the dryer through all of the different cycles to check functions and performance. Very satisfied