Mendota DT3-PF2-LX Operating Instructions Manual page 48

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10. Before reinstalling burners, loosen the screw that secures the rotary air shutter on the Front Burner. Rotate the air
shutter open to ¼" minimum.
11. Install both rear and front burners in their original locations and positions and secure down using screws you removed
earlier.
12. Make certain front and rear burners are running parallel to front face of unit and positioned properly so that the pilot
light flames are pointed properly towards the burner's flame propagation ports.
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BURNER MOUNTING SCREWS