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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.
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