Kenmore PG-40405S0L-SE User & Care Manual page 29

Heat Diffuser, Cooking Grates and Warming Rack
10
 Place the heat diffusers over the burners. Diffusers will fit in the firebox in either direction.
(A & B)
 Place the cooking grates onto the grate rests at the front and rear of the firebox. (C & D)
 Insert the warming rack into the brackets at the top of the firebox as shown. (E & F)
A
C
E
29
B
D
F