3D Connexion PS520G T1 T2 T3 B1 B2 B3

SECTION 4

MAINTENANCE

31

B. Air Fingers Disassembly For Cleaning

1. As the air ngers are removed use a felt pen to mark

all parts of the ngers. This includes the nger 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

2. Slide blank plates straight out.

Figure 4-8.

3. Remove air ngers.

NOTE: Some oven users require a custom nger ar-

rangement where the quantity of air ngers may vary.

You can remove top and bottom ngers and blank

plates from each or either end. It is highly recommended

that each nger be marked before removing so it is

placed in exactly the same position when reassembled

(refer to step 1).

Remove the air ngers, pull the nger at the back side

- pull straight out.

Figure 4-9.

4. With air ngers out, place them in an upright position

to remove the outer plate.

5. Gently step on the lip of the nger and pull the outer

plate off.

Figure 4-10.

T1 T2 T3B1 B2 B3

Contents

Main Page iii MIDDLEBY MARSHALL INC. OVEN LIMITED WARRANTY (Non U.S.A.) Model No. Modle No. Serial No. Seri No. Installation Date Date d'installation MIDDLEBY MARSHALL No Quibble limited WarraNty (U.S.A. Only) iv TABLE OF CONTENTS TABLE OF CONTENTS (Continued) DESCRIPTION I. MODEL IDENTIFICATION SECTION 1 DESCRIPTION Figure 1-1. Single PS520 Oven Figure 1-2. Double PS520 Oven 2 SECTION 1 DESCRIPTION PS520 SERIES OVEN SPECIFICATIONS This Manual Must Be Kept For Future Reference. SERIES PS520 ELECTRICAL SPECIFICATIONS GAS ORIFICE AND PRESSURE SPECIFICATIONS (PER OVEN CAVITY) - CE OVENS Page SECTION 1 DESCRIPTION II. COMPONENT FUNCTION Figure 1-5. Machinery Compartment Components Blower Assembly Right Control Box Page Figure 1-7. Blank Plates (two sizes) and an Air Finger. SECTION 2 INSTALLATION SECTION 2 INSTALLATION PARTS LIST FOR SERIES PS520 GAS OVEN INSTALLATION KIT Single Stack Oven P/N 59182 Figure 2-1. PS520-Series Gas Oven Installation Parts CAUTION I. UNLOADING Page Page Page Page Page SECTION 2 INSTALLATION III. ELECTRICAL CONNECTION INFORMATION FOR PS520-SERIES OVENS. Figure 2-10. Typical Electric Oven Data Plate IV. ELECTRIC SUPPLY FOR GAS HEATED OVENS Figure 2-11. Junction Connection Box V. GAS SUPPLY CAUTION Page Page Page SECTION 3 OPERATION SECTION 3 OPERATION II. COMPONENT INFORMATION AND LOCATION (Figures 3-1 and 3-2) CAUTION Figure 3-2. Interior View of Control Console OPERATION MEASURING CONVEYOR SPEED. Figure 3-3. Conveyor Speed Digital Control Figure 3-4. Product at entrance end of baking chamber BEGINNING OF TIMING Figure 3-5. Product at exit end of baking chamber END OF TIMING SECTION 3 OPERATION WARNING III. STEP-BY-STEP OPERATION Page 24 SECTION 3 OPERATION CAUTION A.Daily Startup Procedure + or + wait or wait IMPORTANT Page SECTION 3 OPERATION V. QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION SECTION 4 MAINTENANCE NOTICE WARNING SECTION 4 MAINTENANCE I. MAINTENANCE - DAILY Figure 4-1. Oven Cooling Fans Figure 4-2. Conveyor Belt and Crumb Pan Cleaning SECTION 4 MAINTENANCE Figure 4-3. II. MAINTENANCE - MONTHLY Page Standard Fingers Figure 4-8. Figure 4-9. Figure 4-10. T1 T2 T3 B1 B2 B3 Page Figure 4-17. 34 5. Install ngers and blank plates correctly with edges interlocked and no space between edges. Figure 4-18. Page Figure 4-23. Figure 4-21. Figure 4-22. Figure 4-24. Figure 4-25. Figure 4-26. Figure 4-27. Figure 4-28. Figure 4-32. Figure 4-33. Figure 4-31. Figure 4-29. Figure 4-30. SECTION 4 MAINTENANCE Figure 4-34. III. MAINTENANCE - EVERY 3 MONTHS Figure 4-35. IV. MAINTENANCE - EVERY 6 MONTHS SECTION 4 MAINTENANCE KEY SPARE PARTS KIT Figure 4-36. PS520-SERIES GAS OVEN KEY SPARE PARTS KIT (Figure 4-36) SECTION 5 TROUBLESHOOTING SECTION 5 TROUBLESHOOTING Page Page www.middleby.com WARNING