Kenmore PG-40611S0L User & Care Manual page 27

Heat Diffusers, Cooking Grates and Warming Rack
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 Place the heat diffusers over the burners by inserting the tabs into slots in front and back of firebox.
 Diffusers will fit in the firebox in either direction. Fit the tabs in the firebox's front end through the slots
in the diffuser's tips. Fit the diffuser's tips in between the tabs in the firebox's rear end.
 Place the cooking grates onto the grate rests at the front and rear of the firebox.
 Insert the warming rack into the brackets at the top of the firebox as shown.
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