17
MAINTENANCE & CLEANING CONT’D
8.3 Burner Air Shutter Adjustment
•
The air shutters are pre-set at the factory. However, minor adjustments may be
required in the field to accommodate differences in gas and elevation.
•
To adjust the air shutters, loosen the set screw holding the air damper to the
burner near the gas inlet.
•
Adjust the air mixture until the burner flame just flickers on the burner. “Lift-
off” or yellow flame indicates improper shutter adjustment.
•
Periodically inspect and clean the air shutters to insure complete combustion.
8.4 Calibration
•
Set the temperature dials to 350
°
F (176°C).
•
Allow the burners to cycle ON and OFF at least five times before attempting to
calibrate.
•
Place a surface thermometer in the center of each cooking section to be
calibrated.
•
Allow the burners to cycle several times while recording the temperature at
which the burners turn ON and OFF.
•
Average the temperatures together, if the average temperature is within 10
°
of
the set temperature, the thermostat is within specifications and needs no
adjustment.
•
If the thermostat is out of specification, remove the thermostat knob and inset a
small flat blade screw driver down the stem of the thermostat and turn the
adjusting screw at the base of the stem.
•
Turning the screw counter-clockwise raises the griddle temperature while
clockwise lowers the temperature.
