Vulcan-Hart ML-114957, ML-52953, ML-52947, ML-52950, ML-52952, ML-52951 Centrifugal Switch Check

Page 48

CENTRIFUGAL SWITCH CHECK (Cont.)

Fig. 65

Using a volt meter, measure the voltage (110-120 volts) between Wire #23 and ground, and Wire #22 and ground. If voltage is present, or if only one wire (#22) has voltage, the centrifugal switch in the motor is bad. The entire motor must be replaced (see Fig. 65).

NOTE: If line voltage is not present on either of the wires, recheck door switch, power switch and thermostat operation.

REMOVAL OF CONVECTION OVEN SOLENOID (90 Series Only)

NOTE: This procedure should be done only after the checks for the thermostat, connector pin and centrifugal switch have been performed.

NOTE: Replacement solenoids come with only one plug. The other plug must be removed from the old solenoid and reinstalled with the new part.

TOOLS REQUIRED: 11/16", 1/2" open end wrenches or 6" adjustable wrench and needle nose pliers.

WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH TO INDICATE YOU ARE WORKING ON THE CIRCUIT.

1.Disconnect unit from main gas and electrical supplies.

2.Disconnect 11/16" NPT straight fitting (1) at right-hand burner tube, and (2) at the safety valve (Figs. 66, 67, & 68).

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Contents Series and VG Series Qualified Installation Personnel Qualified Service PersonnelQualified AND/OR Authorized Operating Personnel Important for Your Safety For Your SafetyGAS Restaurant Range Models GAS Restaurant Range ModelsThermostat Adjustments Dedicated Technical Service HOT Line Service NotationsServicing Simple Checks and Adjustments AdjustmentsUnits Mounted on Casters ChecksServicing Simple Checks and Adjustments 2A L and 48L Oven Door J-Bolt AssemblyOven Door Turnbuckle Pilot Flame Height Air Shutter Adjustment GAS Connections Testing the GAS Supply System GAS ConnectionsPilot Lighting and Adjustments HOT TOP and Griddle TOP Pilot Burner AdjustmentsHOT TOP and Griddle TOP Burners Complete ShutdownPilot Lighting and Adjustments Open TOP Burner AdjustmentsOpen TOP Burners BROILER/GRIDDLE Adjustments BROILER/GRIDDLEStandard Oven Convection Snorkel Oven 90 Series Only Oven Burner Adjustments Thermostat Adjustments Bypass AdjustmentThermostat Adjustments Temperature CalibrationShown with old style burner knobs Thermostat Adjustments Thermostat Adjustments Dial Shaft Regulator CHECK, ADJUSTMENT, Installation Regulator CheckRegulator CHECK, ADJUSTMENT, Installation Regulator AdjustmentRegulator Installation Standard Oven & Griddle Thermostat Replacement Standard Oven and Griddle Thermostat ReplacementStandard Oven and Griddle Thermostat Checks and Calibration Thermostat Replacement Standard Oven & GriddleStandard Oven & Griddle Convection Oven Thermostat Replacement Standard Oven Pilot Safety Valve CHECK, Replacement Standard Oven Pilot Safety Valve CheckStandard Oven Pilot Safety Valve CHECK, Replacement Safety Valve Replacement ProceduresStandard Oven Pilot Safety Valve CHECK, Replacement Oven Pilot CHECK, Replacement Oven Pilot ReplacementOven Pilot Check Thermocouple CHECK, Replacement Thermocouple ReplacementThermocouple Check Oven Burner Nozzle and Orifice Replacement Oven Burner Nozzle and Orifice CheckOven Burner CHECK, Replacement Oven Burner ReplacementOven Burner Check TOP Section Pilot CHECK, Replacement Pilot Adjustment Valve ReplacementTOP Section Pilot Replacement TOP Section Pilot CheckTOP Section Burner Valve and Nozzle CHECK, Replacement Convection Oven Motor and Door Switch CHECK, ReplacementConvection Oven Motor and Door Switch CHECK, Replacement Possible Problem ConditionMicro Door Switch Replacement Convection Oven Motor Replacement 90 Series Only Convection Oven Motor and Door Switch CHECK, Replacement Convection Oven Motor and Door Switch CHECK, Replacement Convection Oven Motor and Door Switch CHECK, Replacement Solenoid Check Centrifugal Switch Check Centrifugal Switch Check Removal of Convection Oven Solenoid 90 Series OnlyRemoval of Convection Oven Solenoid Removal of Convection Oven Solenoid Removal of Convection Oven Solenoid Form 31056 Rev. a

ML-114555, ML-114554, ML-114556, ML-114553, ML-114557 specifications

Vulcan-Hart is a renowned name in the commercial kitchen equipment industry, known for its commitment to quality, performance, and innovation. Among its impressive lineup, the Vulcan-Hart ML-52953, ML-52947, ML-52950, ML-52952, and ML-52951 models stand out as exceptional offerings tailored for a variety of foodservice applications.

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