Service Manual
90 SERIES AND VG SERIES
GAS RESTAURANT RANGES
QUALIFIED INSTALLATION PERSONNEL
OPERATING, INSTALLING AND SERVICE PERSONNEL
QUALIFIED SERVICE PERSONNEL
DEFINITIONS
FOR YOUR SAFETY
IMPORTANT FOR YOUR SAFETY
GAS RESTAURANT RANGE MODELS
GAS RESTAURANT RANGES
SERVICE MANUAL
INDEX
PLEASE KEEP THIS MANUAL FOR FUTURE REFERENCE
SERVICE NOTATIONS
DEDICATED TECHNICAL SERVICE HOT LINE
UNITS MOUNTED ON CASTERS
SERVICING SIMPLE CHECKS AND ADJUSTMENTS
ADJUSTMENTS 1. Legs/Casters
CHECKS
SERVICING SIMPLE CHECKS AND ADJUSTMENTS Cont
2A. 24L and 48L Oven Door J-Bolt Assembly
2. Oven Door Turnbuckle
3. Pilot Flame Height
SERVICING SIMPLE CHECKS AND ADJUSTMENTS Cont
4. Air Shutter Adjustment
SERVICING SIMPLE CHECKS AND ADJUSTMENTS Cont
GAS CONNECTIONS
TESTING THE GAS SUPPLY SYSTEM
GAS CONNECTIONS Cont
HOT TOP AND GRIDDLE TOP PILOT BURNER ADJUSTMENTS
PILOT LIGHTING AND ADJUSTMENTS
HOT TOP AND GRIDDLE TOP BURNERS
Complete Shutdown
OPEN TOP BURNER ADJUSTMENTS
PILOT LIGHTING AND ADJUSTMENTS Cont
OPEN TOP BURNERS
Complete Shutdown
BROILER/GRIDDLE ADJUSTMENTS
PILOT LIGHTING AND ADJUSTMENTS Cont
BROILER/GRIDDLE
Complete Shutdown
PILOT LIGHTING AND ADJUSTMENTS Cont
Complete Shutdown
CONVECTION SNORKEL OVEN 90 Series Only
PILOT LIGHTING AND ADJUSTMENTS Cont
OVEN BURNER ADJUSTMENTS
Complete Shutdown
THERMOSTAT ADJUSTMENTS
Bypass Adjustment
STANDARD OVEN
Temperature Calibration
THERMOSTAT ADJUSTMENTS Cont
Shown with old style burner knobs
Shown with old style burner knobs
4. Pull the dial straight off the dial shaft see Fig
THERMOSTAT ADJUSTMENTS Cont
12. Release the calibration screw and reinstall the dial insert
THERMOSTAT ADJUSTMENTS Cont
DIAL SHAFT
THERMOSTAT ADJUSTMENTS Cont
INCREASE
DECREASE
REGULATOR CHECK
REGULATOR CHECK, ADJUSTMENT, INSTALLATION
REGULATOR ADJUSTMENT
REGULATOR CHECK, ADJUSTMENT, INSTALLATION Cont
REGULATOR INSTALLATION
REGULATOR CHECK, ADJUSTMENT, INSTALLATION Cont
STANDARD OVEN & GRIDDLE THERMOSTAT REPLACEMENT
STANDARD OVEN AND GRIDDLE THERMOSTAT REPLACEMENT
STANDARD OVEN AND GRIDDLE THERMOSTAT CHECKS AND CALIBRATION
8. Remove top burners, if required, to access the thermostat Fig
STANDARD OVEN & GRIDDLE THERMOSTAT REPLACEMENT Cont
5. Remove the top section burner valve knobs
6. Remove screws holding the control panel in place
9. Unscrew the thermostat from the manifold pipe Figs. 33, 34
STANDARD OVEN & GRIDDLE THERMOSTAT REPLACEMENT Cont
CONVECTION SNORKEL OVEN THERMOSTAT REPLACEMENT 90 Series Only
CONVECTION OVEN THERMOSTAT REPLACEMENT
STANDARD OVEN PILOT SAFETY VALVE CHECK
STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT
SAFETY VALVE REPLACEMENT PROCEDURES
STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT Cont
STANDARD OVEN PILOT SAFETY VALVE CHECK, REPLACEMENT Cont
5. Remove safety valve from unit
6. Install new valve by reversing Steps 1 through
OVEN PILOT CHECK, REPLACEMENT
OVEN PILOT REPLACEMENT
OVEN PILOT CHECK
THERMOCOUPLE CHECK, REPLACEMENT
THERMOCOUPLE REPLACEMENT
THERMOCOUPLE CHECK
OVEN BURNER NOZZLE AND ORIFICE CHECK, REPLACEMENT
OVEN BURNER NOZZLE AND ORIFICE REPLACEMENT
OVEN BURNER NOZZLE AND ORIFICE CHECK
OVEN BURNER CHECK, REPLACEMENT
OVEN BURNER REPLACEMENT
OVEN BURNER CHECK
PILOT ADJUSTMENT VALVE REPLACEMENT
TOP SECTION PILOT CHECK, REPLACEMENT
TOP SECTION PILOT REPLACEMENT
TOP SECTION PILOT CHECK
CONVECTION OVEN MOTOR AND DOOR SWITCH CHECK, REPLACEMENT
TOP SECTION BURNER VALVE AND NOZZLE CHECK, REPLACEMENT
TOP SECTION BURNER VALVE AND NOZZLE REPLACEMENT
QUICK MOTOR AND DOOR SWITCH CHECK
CONVECTION OVEN MOTOR AND DOOR SWITCH CHECK, REPLACEMENT Cont
CONVECTION OVEN MOTOR AND DOOR SWITCH CHECK, REPLACEMENT Cont
Possible Problem
Condition
Possible Problem
CONVECTION OVEN MOTOR AND DOOR SWITCH CHECK, REPLACEMENT Cont
MICRO DOOR SWITCH REPLACEMENT
Condition
CONVECTION OVEN MOTOR REPLACEMENT 90 Series Only
CONVECTION OVEN MOTOR AND DOOR SWITCH CHECK, REPLACEMENT Cont
5. To easily access fan rotor and motor, remove snorkel tube from oven cavity
CONVECTION OVEN MOTOR AND DOOR SWITCH CHECK, REPLACEMENT Cont
7. Remove fan wheel cover
CONVECTION OVEN MOTOR AND DOOR SWITCH CHECK, REPLACEMENT Cont
13. Reinstall motor by reversing Steps 1 through
CONVECTION OVEN MOTOR AND DOOR SWITCH CHECK, REPLACEMENT Cont
SOLENOID CHECK
CENTRIFUGAL SWITCH CHECK
REMOVAL OF CONVECTION OVEN SOLENOID 90 Series Only
CENTRIFUGAL SWITCH CHECK Cont
REMOVAL OF CONVECTION OVEN SOLENOID Cont
5. Disconnect solenoid wire leads Fig
4. Disconnect pilot tubing at safety valve Fig
6. Disengage safety valve assembly from the manifold area Fig
REMOVAL OF CONVECTION OVEN SOLENOID Cont
REMOVAL OF CONVECTION OVEN SOLENOID Cont
8. Install new solenoid by reversing steps 1 through
PRINTED IN U.S.A
FORM 31056 Rev. A