Unplug the power cord of the Maytag Neptune dryer. Turn off the gas supply for the dryer by closing the gas valve on the line leading to the dryer.
Open the door. Remove the screws along the door opening. Close the door.
Pull the front panel away from the cabinet and up to disconnect it from the base. Unplug the door switch electrical connector. Set the panel aside.
Remove the two screws along the front of the top panel. Lift the top panel up and back.
Remove the screws connecting the metal shroud in place in front of the drum. Lift off the shroud and set aside.
Move the idler pulley under the drum to the left. Slide the belt off the pulleys.
Lift the drum out of the dryer cabinet.
Remove the LP brass screw from the top of the gas valve with a flat-blade screwdriver. The gas valve assembly is in the lower left area of the dryer cabinet.
Install the natural gas brass screw onto the top of the gas valve assembly.
Remove the screws holding the burner orifice to the gas valve assembly. Lift the orifice out.
Insert the natural gas orifice onto the gas burner. Install the two screws that hold it in place.
Reverse the disassembly steps to put the Maytag Neptune dryer back together.