Middleby Marshall PS540 installation manual IV. Maintenance Every 6 Months, Important Notices

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12.Slide shaft assembly to right side, holding assembly in place. Slide split locking collar to the left side and tighten.

13.Slide rear conveyor drive sprocket onto shaft. Tighten the set screw of this drive sprocket until it extends into the hole of the hollow shaft. It should NOT touch the inner, solid shaft. Check to see that only the rear shaft moves when the sprocket is turned. If both shafts move, you have tightened the set screw too tight. Loosen the set screw until only the rear shaft moves when the sprocket is turning.

14.Insert adaptor bushing into remaining drive sprocket then place onto shaft. Make sure nylon spacer is in place. Tighten set screw making sure screw goes through slot in adaptor bushing and locks onto shaft.

15.Thread conveyor belts back onto frame making sure the links will be traveling in the proper direction.

16.Follow conveyor reassembly instructions in Monthly Maintenance Paragraph “F”.

NOTE: It is recommended that the 6 Month Maintenance schedule be performed by a Middleby Marshall authorized service technician.

IV. MAINTENANCE - EVERY 6 MONTHS

A.Check brushes on D.C. conveyor motor, when worn to less than 1/10″ (2.4mm), replace the brushes.

B.Clean and inspect the burner nozzle and electrode assembly. Also check your oven venting system.

C.Check conveyor shaft bushings and spacers. Replace them if they are worn. See Figure 6-5, Conveyor Exploded Drawing, items 15, 30 and 31 or Figure 6-6, Split Belt Conveyor, items 19, 23, 31, 35 and 36.

IMPORTANT NOTICES:

•The installation, startup and changes required when changing from one gas type to another can be performed only by an authorized service technician.

CANADIAN REGULATIONS PROHIBIT CHANGING AN OVEN’S OPERATION FROM ONE GAS TO ANOTHER.

•Installation of replacement parts requiring access to the interior of the oven is permitted only by an authorized service technician.

•If there are any problems with the operation of the oven, the authorized service technician must be called.

•It is suggested to obtain a service contract with a manufacturer’s authorized service technician.

SECTION 4

MAINTENANCE

Figure 4-53.

Figure 4-54.

Figure 4-55.

Figure 4-56.

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Contents Owners operating Page Iii Middleby MarshallTable of Contents Model Identification Section DescriptionPS540 Series Oven Specifications Heat Transfer and How It Works II. Principle of AIR FlowAir Fingers II. Principle of AIR FlowIII. Component Function Figure PS540-Series Oven Components LocationsGas Burner III. Component FunctionConveyor Motor and Conveyor Belt Blower FanCooling Fan See Figure Cooling FanF2. Blank Plates Air Fingers and Blank Plates See Figure F1. Air FingersUnloading Section InstallationParts List for Series PS540 GAS Oven Installation KIT PS540 Oven Installation Required Kits and EquipmentModel PS540 Single Oven Option Base with Legs and Top Model PS540 Double Oven Option Base with Legs and Top Model PS540 Triple Oven Option Base with Outriggers and Top Model PS540 Single Oven Dimensions Model PS540 Double Oven Dimensions Model Triple Oven Dimensions Restraint Cable InstallationSection Installation 10. Vent Hood II. Ventilation Guidelines Ventilation Hood11. Typical Gas Oven Data Plate IV. Electric Supply for GAS- Heated Ovens12. Junction Connection Box GAS Supply for GAS Heated OvensVI. Conveyor Rear Stop and END Stop Installation Section Installation Control Functions Section OperationTemperature Controller Door Safety SwitchBlower Switch Heat SwitchMeasuring Conveyor Speed ConveyorSee Figures 3-4 III. STEP-BY-STEP Operation Control Panel II. Normal Operation STEP-BY-STEP Daily Startup ProcedureSP Lock Symptom IV. Quick Reference TroubleshootingSection Maintenance Crumb Pans Figure Maintenance DailyExterior Cooling FanRemoving Conveyor From Oven For Cleaning II. Maintenance MonthlySection Maintenance Standard Fingers Air Fingers Disassembly For CleaningReassembly of Air Fingers Cleaning the WindowExtended Lip Tab on Outer Plate Flange Finger Manifold Section Maintenance Reinstall End Plugs Checking Conveyor Belt Tension Conveyor Reassembly Into OvenConveyor Belt Link Removal Replacing Conveyor Belt Attaching Drive ChainLower End Plug Cleaning the Blower/Fan Motor III. Maintenance Every 3 MonthsElectrical Terminals VentilationChecking the Blower/Fan Belt Blower Fan Shaft Bearing Lubrication Split-belt Conveyor Shaft CleaningSection Maintenance Important Notices IV. Maintenance Every 6 MonthsPS540-SERIES GAS Oven KEY Spare Parts KIT, p/n 36805 Figure KEY Spare Parts KITSection Troubleshooting Section Troubleshooting Parts List English NUT, 3/8″-16 Nylon Insulated L/N ZC Oven PANELS, Window and LegsSection Parts List Control Panel English Blower and Shroud English Conveyor English Split Belt Conveyor English GAS Burner and Piping Assembly English Machinery Compartment Section Parts List Section Electrical Schematics Section Electrical Schematics Section Electrical Schematics Section Electrical Schematics Page Hour Service Hotline

PS540 specifications

The Middleby Marshall PS540 is a state-of-the-art conveyor pizza oven that has garnered significant attention in the commercial kitchen world due to its advanced features and capabilities. This oven is designed to meet the high-volume demands of pizzerias, restaurants, and food service establishments, offering efficiency without sacrificing quality.

One of the standout features of the PS540 is its innovative air impingement technology. This system utilizes powerful jets of hot air that circulate around the pizza, ensuring even cooking and browning. The result is a perfectly cooked pizza with a crispy crust and melting cheese, all while reducing cooking times significantly compared to traditional ovens. The efficiency of the PS540 allows operators to increase output, making it a valuable asset during peak hours.

Another key characteristic of the PS540 is its adjustable conveyor speed, which enables operators to customize cooking times based on the specific menu items being prepared. This flexibility ensures that various pizzas, from thick crust to thin crust, can be cooked to perfection. The conveyor design also facilitates a seamless workflow in busy kitchens, allowing for easy loading and unloading of pizzas.

In addition to its cooking capabilities, the PS540 boasts a user-friendly control panel, featuring intuitive digital controls for temperature and cooking times. This user-focused design simplifies operation, allowing staff members to easily program the oven for consistent results. Furthermore, the oven's durable construction and high-quality materials ensure reliability and longevity, minimizing maintenance needs and downtime.

Energy efficiency is a critical consideration in commercial kitchens, and the Middleby Marshall PS540 stands out in this area as well. By optimizing airflow and heat transfer, the oven reduces energy consumption while maintaining exceptional performance. This not only contributes to lowering operational costs but also aligns with sustainability efforts in food service.

Safety features, such as cool-touch exteriors and integrated ventilation systems, further enhance the PS540's appeal, ensuring that it meets the rigorous standards required in commercial kitchens. Overall, the Middleby Marshall PS540 not only elevates pizza quality but also enhances operational efficiency, making it an indispensable tool for any high-volume restaurant or pizza establishment. With its blend of technology, performance, and ease of use, the PS540 sets a new standard for conveyor pizza ovens in the culinary landscape.
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