weber SUMMIT 450 - Manual (Page 14)

14
GENERAL MAINTENANCE
Replacing Main Burners
1. Your Weber Gas Barbecue must be OFF and cool.
2. Turn OFF gas at source.
3. Disconnect regulator.
4. To remove control panel refer to “Remove the control
panel and the front panel” in the Step-By-Step Guide.
5. Remove cooking grates.
6. Remove Flavorizer bars.
7. Remove the manifold by unsnapping the clips at the
right and left front of the cooking box.
8. Disconnect white(1) and black(2) wire from each igniter.
Summit 450
Summit 650
Main Burner Flame Pattern
The Weber Gas Barbecue burners have been factory set
for the correct air and gas mixture. The correct flame
pattern is shown.
1) Burner tube
2) Tips occasionally flicker yellow
3) Light blue
4) Dark blue
If the flames do not appear to be uniform throughout the
burner tube, follow the burner cleaning procedures.
Main Burner Cleaning Procedure
Turn off the gas supply. Remove the manifold.
Look inside each burner with a torch.
Clean the inside of the burners with a wire
(a straightened-out coat hanger will work). Check and
clean the air shutter opening at the ends of the burners.
Check and clean the valve orifices at the base of the
valves. Use a brass bristle brush to clean outside of
burners. This is to make sure all the burner ports are
fully open.
ƽ CAUTION: Do not enlarge the burner ports
when cleaning.
(2)
(3)
(4)
(1)
(1) (2)