Middleby Marshall PS570S installation manual II. Maintenance Monthly, Removing the Conveyor

Page 18

SECTION4-MAINTENANCE

II. MAINTENANCE - MONTHLY

A.Check that the oven is cool and the power is disconnected, as described in the warning at the beginning of this Section.

B.Remove the crumb trays and drive motor shroud from the oven.

C.Lift the drive end of the conveyor slightly, and push it forward into the oven. This removes the tension from the drive chain. Then, remove the drive chain from the conveyor sprocket.

NOTE

Split belt conveyors can only be removed from the end of the oven with the drive motor.

Single-belt conveyor assemblies may be removed from either end of the oven. If it is to be removed from the end of the oven without the drive motor, the drive sprocket assembly must be removed.

To remove the drive sprocket (if necessary), loosen the set screw on the conveyor collar as shown in Figure 4-3. Then, pull the sprocket assembly straight out.

D.Slide the conveyor out of the oven, folding it as it is removed. See Figure 4-4.

E.Remove the end plugs from the oven.

F.Slide the air fingers and blank plates out of the oven, as shown in Figure 4-5. AS EACH FINGER OR PLATE IS REMOVED, WRITE A "LOCATION CODE" ON IT WITH A MARKER to make sure that it can be reinstalled correctly.

Example of markings:

(Top Row) T1 T2 T3 T4 T5 T6 (Bottom Row) B1 B2 B3 B4 B5 B6

G.Disassemble the air fingers as shown in Figure 4-5. AS EACH FINGER IS DISASSEMBLED, WRITE THE "LOCA- TION CODE" FOR THE FINGER ON ALL THREE OF ITS PIECES. This will help you in correctly reassembling the air fingers.

CAUTION

Incorrect reassembly of the air fingers will change the baking properties of the oven.

H.Clean the air finger components and the interior of the baking chamber using a vacuum cleaner and a damp cloth. Refer to the boxed warnings at the beginning of this Section for cleaning precautions.

I.Reassemble the air fingers. Then, replace them in the oven, using the "location code" as a guide.

J.Replace the end plugs on the oven.

K.Reassemble the conveyor into the oven. If the drive sprocket was removed when installing the conveyor, replace it at this time.

L.Reattach the drive chain.

M.Check the tension of the conveyor belt as shown in Figure 4-6. The belt should lift between 3-4" (75-100mm). DO NOT OVERTIGHTEN THE CONVEYOR BELT. If necessary, the belt tension can be adjusted by turning the conveyor adjustment screws, located at the idler (right) end of the conveyor.

N.Replace the crumb trays and drive motor shroud.

Figure 4-3 - Removing the Conveyor Drive Sprocket

Loosen conveyor collar

set screw, then pull sprocket straight out

Figure 4-4 - Removing the Conveyor

Figure 4-5 - Removing Air Fingers and Plates

Manifold

Inner plate

Outer plate

Figure 4-6 - Checking the conveyor tension

Conveyor

tension

adjustment

screws (idler

end only)

3-4" (75-100mm) vertical deflection

18

Image 18
Contents Owners Operating Retain This Manual For Future Reference Table of Contents Description DimensionsGeneral Specifications per oven cavity Conveyor Drive Motor Moves the conveyorInstallation Installation Kit Installation KIT see Figure Recommendations III. Ventilation SystemRequirements Other ventilation concernsConveyor Installation IV. AssemblyRestraint Cable Installation Base Pad, Legs, Casters, and Stacking10 Checking the conveyor tension VI. Electrical Supply Final AssemblyDuringpressuretestingnoteoneofthefollowing VII. GAS SupplyGas Utility Rough-In Recommendations ConnectionGas Conversion Operation Location and Description of ControlsDailystartupprocedure DailyshutdownprocedureII. Normal Operation STEP-BY-STEP III. Quick Reference Digital Temperature Controller Actual TempIV. Quick Reference Troubleshooting Symptom Problem SolutionMaintenance Maintenance DailyII. Maintenance Monthly Removing the ConveyorIII. Maintenance Every 3 Months Split Belt Disassembly and CleaningIV. Maintenance Every 6 Months Blower BeltsLubricating the Blower Fan Bearings KEY Spare Parts KIT DescriptionElectrical Wiring Diagram

PS570S specifications

The Middleby Marshall PS570S is a state-of-the-art conveyor oven that has carved a niche for itself in the fast-paced foodservice industry. Renowned for its remarkable efficiency and versatile cooking capabilities, this oven is an ideal solution for high-volume operations, including pizza shops, restaurants, and other commercial kitchens.

One of the standout features of the PS570S is its advanced cooking technology. The oven incorporates Middleby Marshall’s patented "ShadowBand" technology, which uses a unique heat transfer system that enhances cooking speed and consistency. The design provides optimal heat distribution, ensuring that every item cooked achieves a perfect golden-brown finish while maintaining moisture within the food. This feature is particularly beneficial for products like pizzas, where both crust texture and toppings' freshness are paramount.

The PS570S also boasts an impressive conveyor system that operates at various speeds, allowing operators to customize cooking times based on the specific items being prepared. The oven includes a width-adjustable conveyor belt, catering to a variety of food sizes and types. This flexibility supports an array of menu options, from traditional pizzas to baked goods, ensuring that businesses can meet a diverse range of customer demands.

Moreover, the energy efficiency of the PS570S is notable. The oven utilizes a high-efficiency gas burner system, which significantly reduces energy consumption while maintaining optimal cooking performance. This translates to lower operational costs, making it an attractive choice for budget-conscious establishments looking to maximize their returns.

Another important characteristic is the oven's intuitive digital control system. Operators can easily set cooking times, temperatures, and conveyor speed through an easy-to-navigate interface. The digital controls also allow for programmable recipes, enabling staff to replicate successful dishes with accuracy, thus minimizing waste and maximizing quality.

In terms of maintenance, the PS570S is designed with easy access to internal components, ensuring that cleaning and servicing can be performed quickly and efficiently. The oven's robust construction promises durability, making it a long-term investment for any commercial kitchen.

In summary, the Middleby Marshall PS570S combines advanced heating technology, customizable cooking options, energy efficiency, and user-friendly controls. With its reliability and versatility, it stands out as an essential tool for any operation that prioritizes quality and speed.