Manuals / Middleby Marshall / Kitchen Appliance / Oven

Middleby Marshall PS540G Section Maintenance, III. MAINTENANCE - EVERY 3 MONTHS

Models: PS540G

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III. MAINTENANCE - EVERY 3 MONTHS

4.Reassemble conveyor drive chain cover and then reassemble the bottom cover to the drive chain cover.

Install both upper end plugs.

Figure 4-37.

SECTION 4

MAINTENANCE

III. MAINTENANCE - EVERY 3 MONTHS

WARNING

Shut OFF all electrical power and lock/tag out the switch before attempting maintenance work.

Shut OFF gas supply to oven.

NOTE: It is recommended that the 3-month mainte- nance be performed by an authorized Middleby Marshall technician.

A.Cleaning the Blower/Fan Motor

To gain access to the blower/fan motor, open the control cabinet door by removing the three screws. Clean the motor, burner blower motor, the conveyor drive motor and the surrounding area, using either compressed air or CO2. Thoroughly blow out the motor compartment and vents inside the motor (Figure 4-38). Failure to do this can cause premature failure of blower fan motor.

CAUTION

Not cleaning the blower/fan motor properly can cause premature failure.

Fan Motor-•

Blow Out•

In This Area

Conveyor

D.C. Motor

Burner•

Blower•

Motor

Figure 4-38.

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Middleby Marshall PS540G Section Maintenance, III. MAINTENANCE - EVERY 3 MONTHS, A. Cleaning the Blower/Fan Motor

Contents

Middleby installationowners operating manualFOR YOUR SAFETY, DO NOT STORE OR USE Model No NO QUIBBLE LIMITED WARRANTYInstallation Date U.S.A. ONLYContinued TABLE OF CONTENTSTABLE OF CONTENTS Figure 1-1. Single PS540 Oven SECTION DESCRIPTIONSECTION DESCRIPTION I. MODEL IDENTIFICATION3 Wire PS540 SERIES OVEN SPECIFICATIONSSERIES PS540 ELECTRICAL SPECIFICATIONS Wiring Diagrams are contained in Section 7 of this ManualFigure 1-4. PS540-Series Oven Air Flow II. PRINCIPLE OF AIR FLOWSECTION DESCRIPTION the Inner Plate and Outer Plate to Heat the Food Product SECTION DESCRIPTIONII. PRINCIPLE OF AIR FLOW Continued III. COMPONENT FUNCTION Figure SECTION DESCRIPTIONFigure 1-6. PS540-Series Oven Components Locations Right Control Box SECTION DESCRIPTIONIII. COMPONENT FUNCTION Left Control BoxE. Cooling Fan - See Figure SECTION DESCRIPTIONFigure 1-8. Cooling Fan F2. Blank Plates SECTION DESCRIPTIONFigure 1-9. Blank Plates two sizes and an Air Finger F. Air Fingers and Blank Plates - See Figure F1. Air FingersI. UNLOADING SECTION INSTALLATIONSECTION INSTALLATION INSTALLATION KIT SECTION INSTALLATIONPS540 OVEN INSTALLATION REQUIRED KITS AND EQUIPMENT PARTS LIST FOR SERIES PS540 GAS OVENFigure 2-2. Model PS540 Single Oven Option Base with Legs and Top SECTION INSTALLATIONFigure 2-3. Model PS540 Double Oven Option Base with Legs and Top SECTION INSTALLATIONOption Base with Outriggers and Top SECTION INSTALLATIONFigure 2-4. Model PS540 Triple Oven ELECTRICAL JUNCTION BOX SECTION INSTALLATIONFigure 2-5. MODEL PS540 SINGLE OVEN DIMENSIONS GAS INLET1 GAS INLET 2 ELECTRICAL JUNCTION BOX SECTION INSTALLATIONFigure 2-6. MODEL PS540 DOUBLE OVEN DIMENSIONS Figure 2-8. Restraint Cable Assembly Installation SECTION INSTALLATIONRESTRAINT CABLE INSTALLATION Figure 2-7. MODEL TRIPLE OVEN DIMENSIONSDO NOT USE CONDUIT OR GAS LINE FOR GROUND CONNECTION SECTION INSTALLATIONUTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS540-SERIES OVENS Figure 2-9. Typical PS540-Series Ovens InstallationVENTILATION HOOD SECTION INSTALLATIONII. VENTILATION GUIDELINES VENTILATION CAPTURE TESTIII. ELECTRICAL CONNECTION INFORMATION FOR PS540-SERIES OVENS SECTION INSTALLATIONDO NOT CONNECT BLACK WIRE TO HIGH LEG VOLTAGE OF THE BLACK AND WHITE WIRES MUST BE NO HIGHER THAN 130 VACFigure 2-12. Junction Connection Box SECTION INSTALLATIONV. GAS SUPPLY FOR GAS HEATED OVENS Figure 2-14. Gas Burner Assembly SECTION INSTALLATIONFigure 2-13. Flexible Gas Hose Installation Figure 2-17. Installing Rear and End Stops SECTION INSTALLATIONVI. CONVEYOR REAR STOP AND END STOP INSTALLATION Figure 2-15. Burner AssemblyFigure 3-1. PS540-Series Oven Control Functions SECTION OPERATIONSECTION OPERATION I. CONTROL FUNCTIONSD. Temperature Controller A. Door Safety SwitchB. Blower Switch C. Heat SwitchFigure 3-4. Product at entrance end of baking MEASURING CONVEYOR SPEEDSECTION OPERATION Figure 3-3. Conveyor Speed Digital ControlSECTION OPERATION A. Startup Procedures Initial StartupPower Failure B. Shutdown ProcedureFigure 3-6. Control Panel SECTION OPERATIONwait + for B. DAILYSHUTDOWNPROCEDURESECTION OPERATION II. NORMAL OPERATION - STEP-BY-STEPSECTION 3 OPERATION SOLUTION IV. QUICK REFERENCE TROUBLESHOOTINGSYMPTOM PROBLEMSECTION MAINTENANCE SECTION MAINTENANCEA. Exterior SECTION MAINTENANCEI. MAINTENANCE - DAILY Figure 4-2. Conveyor Belt and Crumb Pan CleaningA. Removing Conveyor From Oven For Cleaning II. MAINTENANCE - MONTHLYSECTION MAINTENANCE PRECAUTIONS4. Remove conveyor drive chain cover as shown SECTION MAINTENANCEStandard Fingers SECTION MAINTENANCEB. Air Fingers Disassembly For Cleaning T1 T2 T3 T4 B1 B2 B3 B4Figure 4-13. Standard Lower Finger Figure 4-14. Standard Upper Finger SECTION MAINTENANCEC. Cleaning the Window D. Reassembly of Air Fingersclear so you won’t pinch them SECTION MAINTENANCESECTION MAINTENANCE E. Reinstall End Plugs SECTION MAINTENANCEG. Checking Conveyor Belt Tension SECTION MAINTENANCEF. Conveyor Reassembly Into Oven H. Conveyor Belt Link Removal SECTION MAINTENANCEJ. Attaching Drive Chain SECTION MAINTENANCEI. Replacing Conveyor Belt A. Cleaning the Blower/Fan Motor SECTION MAINTENANCEIII. MAINTENANCE - EVERY 3 MONTHS D. Checking the Blower/Fan Belt SECTION MAINTENANCEB. Electrical Terminals C. VentilationE. Blower Fan Shaft Bearing Lubrication MAINTENANCEF. Split-belt Conveyor Shaft Cleaning SECTION6. Make sure bronze washer is in between the two halves SECTION MAINTENANCEIMPORTANT NOTICES IV. MAINTENANCE - EVERY 6 MONTHSSECTION MAINTENANCE Figure 4-56. Key Spare Parts SECTION MAINTENANCEKEY SPARE PARTS KIT PS540-SERIES GAS OVEN KEY SPARE PARTS FigurePROBLEM SECTION TROUBLESHOOTINGSECTION TROUBLESHOOTING PROBLEM PRODUCTS ARE OVERCOOKED OR UNDERCOOKEDSECTION TROUBLESHOOTING SECTION PARTS LIST SECTION 6 - PARTS LISTENGLISH ENGLISH SECTION 6 PARTS LISTDESCRIPTION SECTION 6 PARTS LISTENGLISH OVEN PANELS, WINDOW AND LEGSENGLISH SECTION PARTS LISTDESCRIPTION SECTION PARTS LISTENGLISH CONTROL PANELENGLISH SECTION 6 PARTS LISTDESCRIPTION ENGLISHBLOWER AND SHROUD ENGLISH SECTION 6 PARTS LISTDESCRIPTION ENGLISHCONVEYOR DESCRIPTIONENGLISH SECTION 6 PARTS LISTDESCRIPTION SECTION 6 PARTS LISTENGLISH SPLIT BELT CONVEYORENGLISH SECTION 6 PARTS LISTDESCRIPTION GAS BURNER AND PIPING ASSEMBLYENGLISH ENGLISH SECTION 6 PARTS LISTDESCRIPTION ENGLISHMACHINERY COMPARTMENT ENGLISH SECTION PARTS LISTWiring Diagram, G208-240 50/60, 1PH 3W PS540 SECTION ELECTRICAL SCHEMATICSSECTION ELECTRICAL SCHEMATICS Wiring Diagram, G208-240 50/60, 1PH 3W PS540 SECTION ELECTRICAL SCHEMATICSSECTION ELECTRICAL SCHEMATICS SECTION ELECTRICAL SCHEMATICS Page 24-Hour Service Hotline