Garland S680 series Installation, Operating And Service Instructions

Also see for S680 SERIES: Installation and operation manual Installation and service manual Installation and operation manual

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Garland S680 series Installation, Operating And Service Instructions Manual pdf 17 page image

Part # P153 (11/06) Page 173. Do not use the griddle as a hot top. A large pan orpot will trap heat and can cause the griddle plate towarp.4. Do not over heat the griddle to preheat faster.Preheating only takes 15-20 minutes.Thermostat CalibrationWARNING: Turn off the electrical mains beforecommencing any service work.OvenIt is normal for an electromechanical thermostat to cyclewith a 45°F - 50° F (25°C - 28°C) range when checkingcalibration allow the thermostat to cycle a minimumof two times.1. Place the thermocouple of the test instrument inthe center of the oven.2. Turn the oven temperature control dial to 400° F(205° C). In order to allow the oven temperature tostabilize, the oven control must be allowed to cycletwice before taking a test reading.3. Check the temperature reading just when the controlcycles “OFF” as indicated by the cycling pilot lamp.If the temperature does not read with in 15° F (8°C)of the dial setting, recalibrate as follows:4. Carefully remove the thermostat dial, not disturbingthe dial setting.5. Hold the thermostat shaft steady with a smallflat blade screw driver. Turn the calibration screwlocated inside the shaft clockwise to decrease thetemperature and counter clockwise to increase thetemperature. NOTE: each ¼ turn of the screw willcreate a change of approximately 35° F (20°C).6. Replace the thermostat dial and repeat steps 1though 3 to verify that the correct adjustment hasbeen made.MAINTENANCE AND CLEANING ContinuedDial ShaftCalibration Screw HeadCalibrationScrew Head IncreaseDecrease1/4" TurnGriddle1. Use a test instrument with a special disc typethermocouple or a reliable surface type pyrometer.NOTE: a drop of oil on the face of the disc willprovide better contact with the plate.2. Set all griddle thermostats to 350°F (177°C). Inorder to allow the griddle temperature to stabilize,the thermostats must be allowed to cycle twicebefore taking a test reading.3. Check the griddle temperature when the thermostatjust cycles “OFF” by placing the thermocouplefirmly on the griddle directly about the sensingbulb of the thermostat. The reading should bebetween 335° F (168°C) and 365° F and (185°C).If the reading is outside of these limits, calibrate asfollows:

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