Keating Of Chicago Fryer HI-LIMIT Check BI-MONTHLY, Thermostat Calibration, Occurrence Solution

OPERATOR SELF HELP

Before calling for service, review this list. It may save you both time and expense. This list includes common occurrences that are not the result of defective workmanship or materials in this appliance.

OCCURRENCE	SOLUTION
Fryer does not	￿ Check power cord, unit plugged in?
operate:	￿ Thermostat is in the “off” position.
	￿ Check gas supply.
	￿ Reset High Limit.

NOTE: For a fryer with a Central Filter or Safe & Easy® Filter always check the rear drain operating handle before attempting to use the fryer. A safety switch prevents the fryer from operating if the handle is not pushed in completely and latched. (See figure 3-2)

Figure 3-2

Rear Drain Operating Handle

PREVENTIVE MAINTENANCE

Preventive maintenance should be done in daily, weekly, monthly and yearly intervals as necessary. Following preventive maintenance procedures will help keep your fryer working efficiently. Proper care and servicing will lead to years of quality performance.

PREVENTIVE MAINTENANCE CHART

TIME	OPERATOR/OWNER
FRAME
Daily	￿ Check lights and controls.
	￿ Check that the oil is up to “Max” Line.
	￿ Clean all baskets.
	￿ Drain, strain or filter oil.*
Weekly	￿ Drain and clean fryer.*
	￿ Boil-out fryer.
Bi-Monthy	￿ Hi-Limit & Test procedures.
Monthly	￿ Check calibration of the thermostat.
Yearly	QUALIFIED SERVICE PERSONNEL ONLY
	￿ Check burner flame color and adjust
	air shutters.
	￿ Remove and clean all orifices.
	• Clean Pilot Runner Tube.
	• Check and replace wing turbulators.

*High production facilities should be checked more often. Contact your local service company to perform maintenance and repairs.

HI-LIMIT CHECK BI-MONTHLY

Place an accurate thermometer in the oil. If the Hi-Limit Control doesn’t shut off the fryer between 425°F and 450°F, have it replaced.

THERMOSTAT CALIBRATION

You will need:

One screwdriver with 1/8" wide flat blade

One accurate fryer thermometer

1.Set thermostat to desired frying temperature.

2.Allow fryer to cycle three times.

3.Place an accurate thermometer in the oil.

Thermostat calibration

NOTE: Locate thermometer in same position for every calibration. Left front corner of fryer vessel at the High Limit Bulb is recommended.

4.If temperature of fryer is found to be more or less than 15°F off, remove the thermostat knob. There are (4) screws holding the dial plate in place. Loosen the screws and reset the dial plate to match the thermometer reading.

BEFORE REPLACING, TEST THERMOSTATS

These operational problems can easily be corrected by thermostat bulb positioning.

Keating’s patented thermostat application is accurate within 2°F of the dial setting between 250°F – 350°F. This accuracy is attained only if the thermostat bulb is placed properly against the heat transfer tube. To quickly and accurately test for proper bulb placement, a single thickness of writing paper should be pulled through between the tube and the bulb with medium resistance.*

1. *For gas fryers 14":

￿The end of thermostat bulb should touch the burner tube.

2. For gas fryers 10×11, 18" & larger:

￿If the bulb is too loose, the paper will slip through with little or no resistance. A fryer with a thermostat bulb that is too loose will overshoot.

Overshoot: The thermostat takes a long time to cycle and then misses its preset temperature by 20°F - 40°F yielding a poor quality product.

￿If the bulb is too tight, the paper will either not pull through or it will tear. A fryer with a thermostat bulb that is too tight will short cycle.

Short Cycle: The thermostat will cycle rapidly while the fryer is in the idle mode; the temperature will be erratic.

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