Middleby Marshall PS528 (Triple), PS528E, PS528 (Double) II. Maintenance Monthly, Quantity

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II. MAINTENANCE - MONTHLY

NOTE: The oven interior may require cleaning more than once a month depending on the volume of bak- ing. To clean the interior, you have to disassemble some parts of the oven.

When cleaning your Series PS528 Oven note the following:

PRECAUTIONS-

1.  Do not use excessive water or saturation of oven insulation will occur.

2.  Do not use a caustic oven cleaner or the aluminized finger manifold surfaces will be severely damaged.

When cleaning your oven, first remove all heavy debris with a vacuum cleaner. Use a damp cloth for light clean- ing. For heavier cleaning of baked on grease and carbon deposits use a non-caustic cleaner that will not react with

SECTION 4

MAINTENANCE

the aluminized finger manifold surfaces.

You can order non-caustic cleaner from your local autho- rized Middleby Marshall Parts Distributor in the quantities listed below:

Part #

Quantity

27170-0244

Case of Quarts (6)

27170-0246

Case of Gallons (4)

A.   Removing Conveyor From Oven For Cleaning

1.  Remove entry and exit trays.

2.  Loosen (do not remove) two screws on housing guard.

3.  Remove motor housing guard. 4.  Lift conveyor and remove chain.

Figure 4-3.

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Contents Owners operating Page Middleby Marshall Table of Contents Model Identification Section DescriptionThis Manual Must Be Kept For Future Reference PS528 Series Oven SpecificationsSeries PS1828 Electrical Specifications PS528-Series Oven Components Locations II. Component Function Cooling Fan F2. Blank Plates Unloading Section InstallationSingle and Double Stack Ovens Parts List for Series PS528 Electric Oven Installation KITModel PS528 Single Oven Dimensions Model PS528 Double Oven Dimensions Model 528 Triple Oven Dimensions Electric Supply to be Provided by Customer Circuit Breaker II. Ventilation Guidelines10. Typical Electric Oven Data Plate IV. Electric Supply for Electrically Heated OvensSection Installation Control Functions Section OperationBlower Switch Door Safety SwitchHeat Switch Temperature ControllerSee Figures 3-4 Measuring Conveyor SpeedConveyor Power Failure Startup Procedures Daily StartupShutdown Procedure III. STEP-BY-STEP OperationControl Panel IV. Normal Operation STEP-BY-STEP Daily Startup ProcedureSP Lock Symptom Quick Reference TroubleshootingSection Maintenance Exterior Maintenance DailyCooling Fan Conveyor Belt FigureQuantity II. Maintenance MonthlyRemoving Conveyor From Oven For Cleaning Air Fingers Disassembly For Cleaning T1 T2 T3 B1 B2 B3 12. Standard Lower Finger Reassembly of Air FingersExtended Lip Tab on Outer Plate Flange Finger Manifold Incorrect Too Reinstall End Plugs Checking Conveyor Belt Tension Conveyor Reassembly Into OvenConveyor Belt Link Removal Attaching Drive Chain IV. Maintenance Every 6 Months III. Maintenance Every 3 MonthsImportant Notices Electrical TerminalsPS528-SERIES Electric Oven KEY Spare Parts KIT Figure KEY Spare Parts KITProblem Oven does not Heat Section TroubleshootingSection Troubleshooting Parts List English Single Oven Exploded View English Relay Panel English Blower Assembly English Control Panel English Single Conveyor Section Parts List Section Electrical Schematics Wiring Diagram, E208-240V 50/60/3, PS528 P/N 62309 REV B Wiring Diagram, E380-480V 50/60/3, PS528 P/N 62310 REV B Wiring Diagram, E380V 50/60/3 CE PS528 P/N 63969 REV B Section Electrical Schematics