Manuals / Middleby Marshall / Kitchen Appliance / Oven

Middleby Marshall PS840 Series 12. Conveyor installation, 13. Conveyor placement

Models: PS840 Series

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D. Conveyor Installation

D. Conveyor Installation

1.Unfold the conveyor as shown in Figure 2-12. Then, begin to slide the conveyor into the end of the oven. The conveyor can only be installed from the end of the oven with the drive motor.

2.Continue moving the conveyor into the oven until the frame protrudes equally from each end of the oven. Check that the crumb tray supports located on the under- side of the conveyor frame rest firmly against the lower end plugs, as shown in Figure 2-13.

3.When the conveyor is positioned properly, check for freedom of movement of the conveyor belt by pulling it for about 2-3 feet (0.6-1.0m) with your fingers. The drive and idler shafts must rotate smoothly, and the belt must move freely without rubbing on the inside of the oven.

4.Check the tension of the conveyor belt as shown in Figure 2-14. The belt should lift about 1″ (25mm).

DO NOT OVERTIGHTEN THE CONVEYOR BELT.

NOTE: If necessary, the belt tension can be adjusted by turning the conveyor adjustment screws, located at the idler (non-control) end of the conveyor. See Figure 2-14.

Figure 2-12. Conveyor installation

Folded

frame

Figure 2-13. Conveyor placement

Crumb tray

support bracket

End plug

Conveyor placed in oven

Figure 2-14. Conveyor Belt tension

Idler end (with belt tension

adjustment screws)

1″ (25mm)

vertical deflection

	Adjustment
Drive end (with	screws (2) on
drive sprocket)	idler end of
	conveyor

15

Image 19

Middleby Marshall PS840 Series 12. Conveyor installation, 13. Conveyor placement, 14. Conveyor Belt tension

Contents

Model OWNERS OPERATING AND INSTALLATION MANUALPS840 Series Gas Ovens for domestic and standard export ovensRETAIN THIS MANUAL FOR FUTURE REFERENCE U.S.A. ONLY MIDDLEBY MARSHALL INC. OVEN LIMITED WARRANTY Non U.S.AMIDDLEBY MARSHALL NO QUIBBLE LIMITED WARRANTYSECTION 5 - ELECTRICAL WIRING DIAGRAM TABLE OF CONTENTSSECTION 3 - OPERATION Figure 1-1. Oven Components SECTION 1 - DESCRIPTIONI. OVEN USES II. OVEN COMPONENTS - see Figureand are also located inside the oven at the I. OVEN SPECIFICATIONSGAS ORIFICE AND PRESSURE SPECIFICATIONS PER OVEN CAVITY - CE OVENS Wiring Diagrams are contained in Section 5 of this ManualTest for proper combustion and gas supply SECTION 2 - INSTALLATIONPerform a gas leak test Test for correct air supply, particularly to the burner blowerTwo required for double oven Three required for triple oven PS840 24″ OVEN INSTALLATION REQUIRED KITS AND EQUIPMENTPARTS LIST FOR SERIES PS840 GAS OVEN INSTALLATION KIT P/N Figure 2-1A. PS840-Series Gas Oven Installation PartsTwo required for double oven Three required for triple oven PS840 32″ OVEN INSTALLATION REQUIRED KITS AND EQUIPMENTPARTS LIST FOR SERIES PS840 GAS OVEN INSTALLATION KIT P/N Figure 2-1B. PS840-Series Gas Oven Installation PartsOption Base with Legs and Top Figure 2-2A. Model PS840 24″ Single OvenOption Base with Legs and Top Figure 2-2B. Model PS840 32″ Single Oven5, 6 Figure 2-3A. Model PS840 24″ Double OvenOption Base with Legs and Top HARDWARE BAGOption Base with Legs and Top Figure 2-3B. Model PS840 32″ Double OvenOption Base with Outriggers and Top Figure 2-4A. Model PS840 24″ Triple OvenHARDWARE BAG 7, 8, 9, 10, 11, 12 Option Base with Outriggers and Top Figure 2-4B. Model PS840 32″ Triple OvenMOUNTING SUCH EQUIPMENT ON THE OVEN MAY VOID AGENCY CERTIFICATIONS equipment directly to the ovenRESTRICT SERVICE ACCESS LEAD TO INCREASED SERVICE EXPENSES FOR THE OWNERFigure 2-8. Top panel installation IV. ASSEMBLYFigure 2-7. Base pad Installation Figure 2-6. Leg extension and casters installationB. Stacking Figure 2-10. Top panel installationFigure 2-9. Stacking Figure 2-11. Installing the Restraint Cable C. Restraint Cable InstallationFigure 2-14. Conveyor Belt tension Figure 2-12. Conveyor installationFigure 2-13. Conveyor placement D. Conveyor InstallationCONVEYOR BELT REVERSAL RESETTING DIRECTION JUMPERSWITCHING PHOTO DETECTOR CAUTION Disconnect Power Before Switching Photo eyeA. Gas Utility Rough-In Recommendations CAUTION DURING PRESSURE TESTING NOTE ONE OF THE FOLLOWINGConnection VII. GAS SUPPLYB. Connection Figure 2-18. Flexible Gas Hose InstallationFigure 2-19. Gas Burner Assembly E. Adjusting the Maximum Pressure SettingFigure 2-20. Burner Assembly Gas Valve Main PressureMain TapOrifices Gas Burner AssemblyFigure 2-21. Gas Valve I. LOCATION AND DESCRIPTION OF CONTROLS SECTION 3 - OPERATIONII. NORMAL OPERATION - STEP-BY-STEP A. Daily Startup ProcedureB. Daily Shutdown Procedure B. Oven Temperature/Set Point/Indicator ScreenSOLUTION III. QUICK REFERENCE TROUBLESHOOTINGSYMPTOM PROBLEMCAUTION If a cooling fan is not operating correctly, it must SECTION 4 - MAINTENANCEI. MAINTENANCE - DAILY Figure 4-1. Cooling Vents and GrillsFigure 4-2. Removing Air Fingers and Plates II. MAINTENANCE - MONTHLYTop Row Bottom RowFigure 4-5. Drive shaft configurations III. MAINTENANCE - EVERY 3 MONTHSFigure 4-4. Disassembling the idler shaft Figure 4-7. Rear panel access IV. MAINTENANCE - EVERY 6 MONTHSFigure 4-6. Disassembling the drive shaft Figure 4-8. Key Spare Parts KEY SPARE PARTS PS840 GASMiddleby-Marshall Model Number G208-240 Volt 50/60 Hz, 1 Phase SECTION 5 - WIRING DIAGRAMPage Page Page relieves the manufacturer of all warranty and liability