3D Connexion PS520G SECTION 4 MAINTENANCE

SECTION 4

MAINTENANCE

27

SECTION 4 MAINTENANCE

WARNING

Possibility of injury from rotating parts and electrical

shock exist in this oven. Turn off and lockout or tagout

electrical supply to oven(s) before attempting to disas-

semble, clean or service oven(s). Never disassemble

or clean the oven with the blower switch or any other

part of the oven turned on.

WARNING

Before performing any maintenance work or cleaning,

turn main power switch off.

CAUTION

When cleaning do not use any abrasive cleaning

materials or water spray, wipe clean only. Never use a

water hose or pressurized steam cleaning equipment

when cleaning this oven.

NOTICE

If the oven is to be removed from its installed location

for servicing, perform the following procedure:

1. Switch off the oven and allow it to cool. Do NOT

service the oven while it is warm.

2. Turn off main circuit breakers and disconnect con-

nector from oven.

3. Move oven to desired location for servicing.

4. When servicing is complete, move oven to original

location.

5. Adjust legs to level oven.

6. Connect electrical connectors to oven.

7. Turn on main circuit breakers.

8. Follow normal startup instructions.

WARNING

BeforeANYcleaningorservicingoftheoven,performthefollowingprocedure:

1. Switch off the oven and allow it to cool. Do NOT service the oven while it is warm.

2. Turnthefull-owgassafetyvalvetotheoffposition.

3. Turn off the electric supply circuit breaker(s) and disconnect the electric supply to the oven.

4. If it is necessary to move a gas oven for cleaning or servicing, disconnect the gas supply before moving the oven.

Whenallcleaningandservicingiscomplete:

1. If the oven was moved for servicing, return the oven to its

original location.

2. Reconnect the gas supply.

3. Reconnect the electrical supply.

4. Turnonthefull-owgas safetyvalve.Testthegas line

connections for leaks using approved leak test substances

or thick soap suds.

5. Turn on the electric supply circuit breaker(s).

6. Perform the normal startup procedure.

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