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— 9 —
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
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.
Figure 12
Grate and carriage adjustments should be
done by authorized service personell only.
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.
Air Shutter Adjustment