Middleby Cooking Systems Group PS520E Figure 4-18, Figure 4-19

SECTION 4

MAINTENANCE

5. Install fingers and blank plates correctly with edges interlocked and no space between edges.

Figure 4-18

D. Reinstall End Plugs

1. Reinstall lower end plug. Be sure to tighten the wing screw on the end plug.

2. Reinstall conveyor.

3. Reinstall upper end plug. Be sure to tighten two wing screws on the end plug..

Figure 4-19

Blank Plate

Tab on Outer Plate of

Finger Located in Groove

Top Finger

Correct -

Edges Overlap

Completely

Contents

Main Page iii Model No.________________________ Serial No._______________ Installation Date __________ MIDDLEBY MARSHALL INC. OVEN LIMITED WARRANTY (Non-U.S.A.) MIDDLEBY MARSHALL No Quibble Limited Warranty (U.S.A. Only) iv Table of Contents Table of Contents (continued) SECTION 1 DESCRIPTION I. MODEL IDENTIFICATION Figure 1-3. Triple PS520 Oven Figure 1-1. Single PS520 Oven Figure 1-2. Double PS520 Oven NOTE PS520 SERIES OVEN SPECIFICATIONS SERIES PS520 ELECTRICAL SPECIFICATIONS II. COMPONENT FUNCTION Figure 1-4 Blower Assembly Figure 1-5 Machinery Compartment Components SECTION 2 INSTALLATION NOTE I. UNLOADING Page Page 7 UTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS520 SERIES OVENS DO NOT USE CONDUIT OR GAS LINE FOR GROUNDING CONNECTION II. VENTILATION III. ELECTRICAL CONNECTION INFORMATION FOR PS520-SERIES OVENS. Figure 2-11. Junction Connection Box Figure 2-10. Typical Electric Oven Data Plate IV. ELECTRIC SUPPLY FOR ELECTRICALLY HEATED OVENS 9 SECTION 3 OPERATION I. CONTROL FUNCTIONS Figure 3-1. PS520-Series Oven Control Functions WARNING Figure 3-2. Interior View of Control Console II. COMPONENT INFORMATION AND LOCATION (Figures 3-1 and 3-2) MEASURING CONVEYOR SPEED Figure 3-3. Conveyor Speed Digital Control Figure 3-5. Product at exit end of baking chamber - END OF TIMING Figure 3-4. Product at entrance end of baking chamber - BEGINNING OF TIMING III. STEP-BY-STEP OPERATION Figure 3-6. Control Panel 13 IV. NORMAL OPERATION - STEP-BY-STEP A. Daily Start-up Procedure B. DAILY SHUTDOWN PROCEDURE CAUTION Page 15 V. QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION SECTION 4 MAINTENANCE I. MAINTENANCE - DAILY Figure 4-1. Oven Cooling Fans Figure 4-2. Conveyor Belt and Crumb Pan Cleaning Figure 4-3 II. MAINTENANCE - MONTHLY Page Standard Fingers Figure 4-8 Figure 4-10 Figure 4-9 Page Figure 4-16 Figure 4-17 Figure 4-18 Figure 4-19 Figure 4-21 Figure 4-22 Figure 4-23 Figure 4-24 Figure 4-25 Figure 4-26 Figure 4-27 Figure 4-28 Figure 4-29 Figure 4-30 Figure 4-33 Figure 4-31 Figure 4-32 III. MAINTENANCE - EVERY 3 MONTHS IV. MAINTENANCE - EVERY 6 MONTHS Figure 4-34 Figure 4-35 PS520-SERIES ELECTRIC OVEN KEY SPARE PARTS KIT SECTION 5 TROUBLESHOOTING SECTION 5 TROUBLESHOOTING Page Page Page Page Page Page WARNING