4. Insert the provided
orifice removal tool (B)
into burner openings
and unscrew orifices
from ends of valves. (Fig. 4)
5. Put the new orifice into the orifice
removal tool (B), and then insert the tool
into the burner opening and tighten the new
orifice to the valve.
Repeat this step for all three burners.
Make sure you are using the correct orifice,
which is marked "1.37".
6. Adjust main burners' air shutter by loosening
the air shutter screw, the settings
1/4 in. open for LP gas.
1/16 in. - 1/8 in. open for NG gas.