Tempareature Controller Calibration - Southbend Marathoner Gold ES/20SC Operator's Manual

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DJUSTMENTS
3. Check that the door switch striker bar is attached to the door chain's first and second links (after the
master link). If necessary, adjust or repair the door switch striker bar.
4. With the doors closed, loosen the two screws that hold the door switch bracket to the oven frame
(shown below). Slide the bracket left or right until the plunger arm on the door switch is being
depressed 1/8".
Do NOT adjust the door switch so that the plunger arm is completely depressed and is hitting the
switch body. This could distort the arm and cause the switch to operate poorly.
5. Tighten the screws holding the door switch bracket to the oven frame.
Door Switch and Door Chain Adjustment
TEMPERATURE CONTROLLER (Standard-Control Models Only)
The calibration of the temperature controller should not be changed until sufficient experience with cooking
results has definitely proved that the temperature controller is not maintaining proper oven temperatures.
Before any recalibration is attempted, the oven temperature should be checked by the following procedure:
1. Remove all trays and pans from the oven.
2. Place a thermocouple or a reliable mercury oven-type thermometer at the center of the middle rack.
3. Turn the oven ON and set the temperature control knob to 400°F.
4. The amber "heat on" light will go out when the oven temperature is reached.
5. Allow three cycles for the temperature to stabilize.
6. Read the thermocouple or thermometer immediately after the light goes out for the third time, and
again immediately after it comes on the next time.
7. If the average of these readings varies by more than 10°F from the dial setting, recalibrate by the
following procedure. Recalibration should be attempted only by a competent service technician.
Use the following procedure to recalibrate the oven:
1. Loosen the two set screws that secure the temperature-control knob to the temperature-control shaft.
2. Remove the knob from the shaft, being careful not to rotate the knob or shaft.
3. Replace the knob on the shaft so that the indicator mark on the knob points directly at the temperature
that was measured at the center of the oven.
4. Re-check the oven calibration.
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AGE
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CAUTION
Plunger
Door Switch
Door Switch Bracket
Adjusting Slots
E
LECTRIC
Turnbuckles
Door Switch
O ' M 1181958
PERATOR S ANUAL
C O
ONVECTION VENS