Middleby Marshall PS520 installation manual T1 T2 T3 B1 B2 B3

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1.As the air fingers are removed use a felt pen to mark all parts of the fingers. This includes the finger manifold, inner plate and the outer plate (refer to Figure 1-9). If a blank or choke plate is used, mark that plate also. Fingers are marked in the order shown; as viewed from the front of the oven. (The marks for an upper oven should be preceded with a “U”, example UB1, UT2, etc.)

Standard Fingers

T1 T2 T3

B1 B2 B3

2. Slide blank plates straight out.

Figure 4-8.

3. Remove air fingers.

NOTE:Some oven users require a custom finger arrange- ment where the quantity of air fingers may vary.

You can remove top and bottom fingers and blank plates from each or either end. It is highly recommended that each finger be marked before removing so it is placed in exactly the same position when reassembled (refer to step 1).

Remove the air fingers, pull the finger at the back side - pull straight out.

SECTION 4

MAINTENANCE

Figure 4-9.

4.With air fingers out, place them in an upright position to remove the outer plate.

5.Gently step on the lip of the finger and pull the outer plate off.

Figure 4-10.

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Contents Owners operating Page Middleby Marshall Table of Contents Model Identification Section DescriptionSeries PS520 Electrical Specifications PS520 Series Oven SpecificationsThis Manual Must Be Kept For Future Reference PS520-Series Oven Components Locations II. Component Function Cooling Fan F2. Blank Plates Blank Plates two sizes and an Air FingerUnloading Section InstallationSingle and Double Stack Ovens Parts List for Series PS520 Electric Oven Installation KITModel PS520 Single Oven Dimensions Model PS520 Double Oven Dimensions Model 520 Triple Oven Dimensions Electric Supply to be Provided by Customer Circuitbreaker II. Ventilation Guidelines10. Typical Electric Oven Data Plate IV. Electric Supply for Electrically Heated OvensSection Installation Control Functions Section OperationII. Component Information and Location Figures 3-1 Conveyor Measuring Conveyor SpeedIII. STEP-BY-STEP Operation Startup Procedures Daily StartupControl Panel IV. Normal Operation STEP-BY-STEP Daily Startup ProcedureSP Lock Symptom Quick Reference TroubleshootingSection Maintenance Conveyor Belt Figure Maintenance DailyExterior Cooling FanRemoving Conveyor From Oven For Cleaning II. Maintenance MonthlyAir 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 Section Maintenance Reinstall End Plugs Checking Conveyor Belt Tension Conveyor Reassembly Into OvenConveyor Belt Link Removal Attaching Drive Chain Electrical Terminals III. Maintenance Every 3 MonthsIV. Maintenance Every 6 Months Important NoticesPS520-SERIES Electric Oven KEY Spare Parts KIT Figure KEY Spare Parts KITSection Troubleshooting Section 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, E380-480V 50/60/1, PS520 Wiring Diagram, E230-240V CE PS520/1820S Wiring Diagram, E380-400V CE PS520/1820S Section Electrical Schematics