Vulcan Heavy Duty Gas Griddle 924RX

WARNING! Disconnect the electrical power to the machine and follow lockout / tagout procedures

Label and disconnect wires from power switch

Squeeze switch retainers and slide switch out through front of panel

Install the new switch in reverse order

Check that all tools are removed from the work area

Reconnect the electrical power to the machine

Test the new power switch for proper operation

Unscrew thermocouple fitting from safety valve

Install thermocouple test adapter finger tight plus a quarter turn

Install thermocouple into test adapter finger tight plus a quarter turn

Set VOM to DC millivolt scale and connect (+) meter lead to pin on thermocouple adapter and (-) meter lead to thermocouple

Verify that thermocouple is sufficiently immersed in flame. Adjust pilot valve to allow more gas flow if necessary

Allow pilot to burn for 3-4 minutes to stabilize voltage output from thermocouple

Verify thermocouple output voltage

Enter the measured thermocouple output voltage

WARNING! Disconnect the electrical power to the machine and follow lockout / tagout procedures

Turn all thermostats to off position

Loosen set screw securing thermostat knobs and pull off knobs

Remove screws securing front panel to griddle

Pull front panel forward and lay aside

If servicing a 900RX, lay front panel face down in front of unit

Check line-of-sight through the front panel to see both pilot burners and griddle burners

Move any flexible gas tubing, or capillary tubing that may obstruct the sight holes

Disconnect the electrical power to the machine and follow lockout / tagout procedures

Shut off the gas before servicing the unit and follow lockout / tagout procedures

Disconnect gas supply at griddle

Remove screw securing burner to wall

Observe temperatures at the center points of the cooking zones using a Surface Probe temperature measurement device

Ensure not to use infrared thermometers due to sensitivity issues

Thermostat Setting and Stabilization

Set thermostats to 350°F and allow to stabilize

Temperature Recording and Calculation

Record temperature tester readouts for each zone for 3 cycles

Calculate total average temperature for each zone