Manuals / Middleby Marshall / Kitchen Appliance / Oven

Middleby Marshall PS540G IV. MAINTENANCE - EVERY 6 MONTHS, Important Notices, Section Maintenance

Models: PS540G

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IV. MAINTENANCE - EVERY 6 MONTHS

12.Slide shaft assembly to right side, holding assembly in place. Slide split locking collar to the left side and tighten.

13.Slide rear conveyor drive sprocket onto shaft. Tighten the set screw of this drive sprocket until it extends into the hole of the hollow shaft. It should NOT touch the inner, solid shaft. Check to see that only the rear shaft moves when the sprocket is turned. If both shafts move, you have tightened the set screw too tight. Loosen the set screw until only the rear shaft moves when the sprocket is turning.

14.Insert adaptor bushing into remaining drive sprocket then place onto shaft. Make sure nylon spacer is in place. Tighten set screw making sure screw goes through slot in adaptor bushing and locks onto shaft.

15.Thread conveyor belts back onto frame making sure the links will be traveling in the proper direction.

16.Follow conveyor reassembly instructions in Monthly Maintenance Paragraph “F”.

NOTE: It is recommended that the 6 Month Maintenance schedule be performed by a Middleby Marshall authorized service technician.

IV. MAINTENANCE - EVERY 6 MONTHS

A.Check brushes on D.C. conveyor motor, when worn to less than 1/10″ (2.4mm), replace the brushes.

B.Clean and inspect the burner nozzle and electrode assembly. Also check your oven venting system.

C.Check conveyor shaft bushings and spacers. Replace them if they are worn. See Figure 6-5, Conveyor Exploded Drawing, items 15, 30 and 31 or Figure 6-6, Split Belt Conveyor, items 19, 23, 31, 35 and 36.

IMPORTANT NOTICES:

•The installation, startup and changes required when changing from one gas type to another can be performed only by an authorized service technician.

CANADIAN REGULATIONS PROHIBIT CHANGING AN OVEN’S OPERATION FROM ONE GAS TO ANOTHER.

•Installation of replacement parts requiring access to the interior of the oven is permitted only by an authorized service technician.

•If there are any problems with the operation of the oven, the authorized service technician must be called.

•It is suggested to obtain a service contract with a manufacturer’s authorized service technician.

SECTION 4

MAINTENANCE

Figure 4-53.

Figure 4-54.

Figure 4-55.

Figure 4-56.

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Middleby Marshall PS540G installation manual IV. MAINTENANCE - EVERY 6 MONTHS, Important Notices, Section Maintenance

Contents

Middleby installationowners operating manualFOR YOUR SAFETY, DO NOT STORE OR USE Model No NO QUIBBLE LIMITED WARRANTYInstallation Date U.S.A. ONLYTABLE OF CONTENTS TABLE OF CONTENTSContinued 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 ManualII. PRINCIPLE OF AIR FLOW SECTION DESCRIPTIONFigure 1-4. PS540-Series Oven Air Flow SECTION DESCRIPTION II. PRINCIPLE OF AIR FLOW Continuedthe Inner Plate and Outer Plate to Heat the Food Product SECTION DESCRIPTION Figure 1-6. PS540-Series Oven Components LocationsIII. COMPONENT FUNCTION Figure Right Control Box SECTION DESCRIPTIONIII. COMPONENT FUNCTION Left Control BoxSECTION DESCRIPTION Figure 1-8. Cooling FanE. Cooling Fan - See Figure 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 FingersSECTION INSTALLATION SECTION INSTALLATIONI. UNLOADING 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 INSTALLATIONSECTION INSTALLATION Figure 2-4. Model PS540 Triple OvenOption Base with Outriggers and Top ELECTRICAL JUNCTION BOX SECTION INSTALLATIONFigure 2-5. MODEL PS540 SINGLE OVEN DIMENSIONS GAS INLETSECTION INSTALLATION Figure 2-6. MODEL PS540 DOUBLE OVEN DIMENSIONS1 GAS INLET 2 ELECTRICAL JUNCTION BOX 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 VACSECTION INSTALLATION V. GAS SUPPLY FOR GAS HEATED OVENSFigure 2-12. Junction Connection Box SECTION INSTALLATION Figure 2-13. Flexible Gas Hose InstallationFigure 2-14. Gas Burner Assembly 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 MAINTENANCESECTION MAINTENANCE F. Conveyor Reassembly Into OvenG. Checking Conveyor Belt Tension H. Conveyor Belt Link Removal SECTION MAINTENANCESECTION MAINTENANCE I. Replacing Conveyor BeltJ. Attaching Drive Chain SECTION MAINTENANCE III. MAINTENANCE - EVERY 3 MONTHSA. Cleaning the Blower/Fan Motor 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 MAINTENANCEIV. MAINTENANCE - EVERY 6 MONTHS SECTION MAINTENANCEIMPORTANT NOTICES 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 6 - PARTS LIST ENGLISHSECTION PARTS LIST 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 LISTENGLISH BLOWER AND SHROUDDESCRIPTION ENGLISH SECTION 6 PARTS LISTDESCRIPTION ENGLISHCONVEYOR DESCRIPTIONENGLISH SECTION 6 PARTS LISTDESCRIPTION SECTION 6 PARTS LISTENGLISH SPLIT BELT CONVEYORENGLISH SECTION 6 PARTS LISTGAS BURNER AND PIPING ASSEMBLY ENGLISHDESCRIPTION ENGLISH SECTION 6 PARTS LISTENGLISH MACHINERY COMPARTMENTDESCRIPTION ENGLISH SECTION PARTS LISTSECTION ELECTRICAL SCHEMATICS SECTION ELECTRICAL SCHEMATICSWiring Diagram, G208-240 50/60, 1PH 3W PS540 Wiring Diagram, G208-240 50/60, 1PH 3W PS540 SECTION ELECTRICAL SCHEMATICSSECTION ELECTRICAL SCHEMATICS SECTION ELECTRICAL SCHEMATICS Page 24-Hour Service Hotline