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OWNER’S MANUAL 1182845 REV 8 PAGE 27 CLEANING ADJUSTMENTS HEAVY DUTY COUNTERLINE ADJUSTMENTS ADJUSTMENTS ! WARNING ADJUSTMENTS AND SERVICE WORK MAY BE PERFORMED ONLY BY A QUALIFIED TECHNICIAN WHO IS EXPERIENCED IN, AND KNOWLEDGEABLE WITH, THE OPERATION OF COMMERCIAL COOKING EQUIPMENT. HOWEVER, TO ASSURE YOUR CONFIDENCE, CONTACT YOUR AUTHORIZED SERVICE AGENCY FOR RELIABLE SERVICE, DEPENDABLE ADVICE OR OTHER ASSISTANCE, AND FOR GENUINE FACTORY PARTS. NOTICE The warranty will be void and the manufacturer relieved of all responsibility if… (A) Service work is performed by other than a qualified technician, or (B) Other than genuine Southbend replacement parts are installed. Before making any adjustment, make sure the appliance is connected to the type of gas for which it is equipped. That information is on the serial plate, which is located on the inside of the control panel (see Figure 1 on page 3). ADJUSTMENT OF MANIFOLD GAS PRESSURE A pressure regulator is connected to the appliance’s gas connection, outside the rear left corner of the appliance. The pressure regulator is factory set at 4" W.C. for natural gas and 10" W.C. for propane. To check the manifold pressure, do the following: 1. Turn all burner valves to “OFF” position. 2. Turn main gas valve to entire appliance off. 3. Remove front panel and locate 1/8" plug in manifold. (Note that 60" and 72" griddle models have two burner compartments, and so have two manifolds.) 4. Remove the plug and install a fitting appropriate to connect a manometer. 5. Turn on main gas to appliance and light pilots. 6. Turn all burners to full “ON” position and read manometer. 7. If manometer does not read 4" W.C. for natural gas (or 10" W.C. for propane gas), check the incoming gas line for proper pressure. The proper gas line pressure is 5-7" W.C. for natural gas and 11-14" W.C. for propane. 8. Remove manometer fitting and replace plug in manifold. 9. Replace front panel. 10. Turn on main gas to appliance and light pilots. PAGE 28 OWNER’S MANUAL 1182845 REV 8 HEAVY DUTY COUNTERLINE ADJUSTMENTS ADJUSTMENT OF PILOT FLAME (GRIDDLE MODELS) The pilots are adjusted at the factory. If later the pilots are over-adjusted to the point where the flame is leaving its port, or “blowing off,” the result is an unstable condition in which the pilot may extinguish. If necessary, adjust each burner’s pilot using the following procedure: 1. Open the door on the lower front of the appliance, remove the control knobs, and remove the control panel by removing the screws holding it in place. 2. If necessary, light the pilots. 3. Locate the adjustment valve of the pilot that needs adjustment (see Figure 16 below). On thermostatic griddles, the valve is in the pilot’s supply line, while on manual griddles the valve connects the pilot’s supply line to the front manifold. Turn the pilot adjustment screw to the left to increase the size of the pilot flame, or to the right to decrease the size of the pilot flame. The flame should be about 1/2" high with a slight yellow tip, and cover the thermocouple tip. The flame is too high if the yellow tip is producing black streaks of carbon. 4. Repeat Step 3 for each pilot. 5. Replace the control panel and knobs. Figure 16 Pilot Flame Adjustment Screw on Thermostatic Griddles Pilot Flame Adjustment Screw on Manual Griddles ADJUSTMENT OF PILOT FLAME (CHARBROILER AND OPEN-TOP MODELS) The pilots are adjusted at the factory. If later the pilots are over-adjusted to the point where the flame is leaving its port, or “blowing off,” the result is an unstable condition in which the pilot may extinguish. If necessary, adjust each burner’s pilot using the following procedure: 1. If necessary, light the pilots. 2. Locate the pilot adjustment valve (see Figure 17 below). Turn the pilot adjustment screw to the left to increase the size of the pilot flame, or to the right to decrease the size of the pilot flame. The flame should be about 1/2" high with a slight yellow tip. The maximum pilot flame height is 3/4". The flame is too high if the yellow tip is producing black streaks of carbon. 4. Repeat Step 3 for each pilot. 5. Replace the control panel and knobs. Figure 17 Pilot Flame Adjustment Screws ADJUSTMENTS OWNER’S MANUAL 1182845 REV 8 PAGE 29 ADJUSTMENTS HEAVY DUTY COUNTERLINE ADJUSTMENTS ADJUSTMENT OF BURNER FLAME The burners are adjusted at the factory. If necessary to adjust the burner flames, do the following for each burner: 1. Turn the burner’s control knob to the full ON position. 2. If the appliance was cold, wait 5 minutes before adjusting the burner flame. 3. Loosen the set screw that holds the sheet-metal air shutter in place. 4. If the burner flame is blowing or lifting off the burner ports, close the air shutter until a stable flame is obtained. If the flame is yellow-tipping, open the air shutter until a stable blue flame is obtained (a small amount of yellow-tipping is normal when using propane gas). 5. Tighten the set screw that holds the sheet-metal air...

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