Check And Adjust The Burners; Burner Flame Characteristics; Low Flame Adjustment - Nexgrill 720-0709PM Manual De Uso

Check and Adjust the Burners

The burners are tested and factory-set for most efficient operation.
However, variations in gas supply and other conditions may make
minor adjustments to air shutter or low flame setting necessary.
It is recommended that a qualified person make burner adjustments.
Checking and adjusting the grill burner flames requires removing
the grates and flame tamers.

Burner Flame Characteristics

The flames of the grill burners and side burners (on some models)
should be blue and stable with no excessive noise or lifting (LP gas
flames will have a slightly yellow tip). A yellow flame indicates not
enough air. If flame is noisy or lifts away from the burner, there is
too much air. Some yellow tips on flames when the burner is set to
HIGH setting are acceptable as long as no carbon or soot deposits
appear. The flames should be approximately 1" (2.5 cm) high.
Check that burners are not blocked by dirt, debris, insect nests,
etc., and clean as necessary. If they are clean, adjust air shutters
as needed.
IMPORTANT: Before adjusting air shutters, let burners cold down
completely. To Adjust:
1. Light grill using information in the "Outdoor Grill Use" section.
2. Observe flame to determine which burners need adjustment
and how the flame is acting.
3. Turn off the valve and wait until grill and burners cold
completely.
4. Remove grill grates and flame tamers.
5. Remove the 1 screw and cotter pin that hold the burner in
place. Remove gas burner from the grill.
A
A. Clip
20
6. If flame is yellow (not enough air), turn air shutter adjustment
screw counterclockwise.
If flame is noisy or lifts away from burner (too much air), turn air
shutter adjustment screw clockwise.
A
A. Air shutter adjustment screw
Adjustment should be made clockwise or counter clockwise from
1/8" (3.2 mm) to ¼" (6.4 mm).
7. Replace gas burner, sear plates and grates.
8. Light grill using information in the "Outdoor Grill Use" section.
See "Burner Flame Characteristics

Low Flame Adjustment

If flame goes out on the "LOW" setting, the low flame setting
must be adjusted.
1. Turn off the valve and wait until grill and burners are cold.
2. Remove grill grates and flame tamers.
3. Light grill using information in the "Outdoor Grill Use" section.
4. Turn burner to its lowest setting.
5. Remove each control knob for the main burners and side
burner by loosening the setscrew with the hex key.
6. Hold valve stem with pliers and insert a small flat-blade
screwdriver into the shaft.
7. Watch the flame and slowly turn the screwdriver
counterclockwise.
8. Adjust flame to minimum stable flame.
A
B
A. Valve stem
B. Small flat-blade screwdriver
C. Pliers
9. Replace the control knob and turn off the burner.
10. Repeat steps 3 through 9 for each burner if needed.
11. Replace the flame tamers and grates after the burners have
cooled.
C