PREHEATING THE BROILER
Allow the broiler to preheat for 30 minutes. Note that grease runs forward and drops into the trough at the front of the broiler before draining into the grease drawer.
GRIDDLE
The griddle can be used for heating as required. Griddle heat is controlled by the broiler burner valves.
ADJUSTMENTS
Burner Adjustment
The efficiency of the broiler depends on a delicate balance between the supply of air and the volume of gas so that complete combustion is achieved. Whenever this balance is disturbed, poor operating characteristics occur.
The air supply is controlled by an air shutter on the front of the burners. The air shutter openings should be increased until the flame on the burner begins to “lift.” The air shutter should then be closed slightly and locked in place. A yellow streaming flame indicates insufficient air (Fig. 11). This condition could be corrected by increasing the air shutter opening.
Figure 11
Air Shutter Adjustment
All burner air shutters are adjusted at the plant but may need to be readjusted depending on gas mixtures and altitudes at each location.
Start broiler burners and let them run for
15 minutes. Check each burner flame for approx. a 1" high flame with a little yellow tip on the ends.
If flame is larger or smaller than 1" the burner shutter must be adjusted. One burner at a time, loosen shutter screw and open slowly until flame reaches approx. 1" high. Retighten screw.
Repeat on remaining burners needing adjustment.
Grate and Carriage Adjustment
If carriage tension is too strong, turn adjusting nuts counterclockwise. If one side of the grate is lower than the other side, turn adjusting nut on the low side clockwise to level (Fig. 12).
Adjustment should be made with the grate irons in place and allowance for product weight.
The adjusting nut is accessible from the front as shown in Fig. 12.
Grate and carriage adjustments should be done by authorized service personell only.
Figure 12
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