Middleby Marshall PS300F II. Maintenance Monthly, Removing Air Fingers and Plates

Page 22

ENGLISH

SECTION4-MAINTENANCE

II. MAINTENANCE - MONTHLY

NOTE

When removing the conveyor, refer to the drawings on Pages 12- 13 in the Installation section.

A.Check that the oven is cool and the power is disconnected, as described in the warning on Page 20.

B.Remove the drive motor shroud and conveyor extension covers from the oven. Disconnect the drive chain from the sprocket on the drive shaft of the conveyor.

C.Slide the conveyor out of the oven.

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 assem- bly must be removed.

To remove the drive sprocket (if necessary), loosen the set screw on the conveyor collar as shown in Figure 2-12 (on Page 12). Then, pull the sprocket assembly straight out.

D.Remove the end plugs from the oven. The end plugs are shown in Figure 1-1, on Page 4 of this Manual.

E.Slide the air fingers and blank plates out of the oven, as shown in Figure 4-4. 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.

Figure 4-4 - Removing Air Fingers and Plates

Air Finger

Blank Plate

Figure 4-5 - Disassembling the Air Fingers

Example of markings:

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

F.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.

G.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 on Page 20 for cleaning precautions.

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

I.Replace the end plugs on the oven.

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

K.Reattach the drive chain.

L.Check the tension of the conveyor belt as shown in Figure 2-15 (on Page 12). 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.

M.Replace the drive motor shroud and the conveyor exten- sions.

Manifold

Inner plate

Outer Plate

2

Pull outer plate straight up

and off

1

Step on lip of manifold

3

Swing ends of inner plate and

manifold apart

4

Pull inner plate upwards, and then away from manifold

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Contents Owners Operating English Table of Contents Conveyor Drive Motor Moves the conveyor III Oven SpecificationsOven Uses Not ShownGeneral specifications per oven cavity Installation Additional installation kit components for gas ovens Installation KITInstallation kit components one kit required per cavity 811Recommendations II. Ventilation SystemRequirements Other ventilation concernsStacking III. AssemblyIV. Thermocouple Installation StandsLeftoven Rightoven Tandem Oven AssemblyOven Positioning and Alignment Be pre-mounted to Either of the oven CavitiesPush the ovens together. Check that the mounting bolts Frame of the right oven, pointing outward as shownReplace the rear axial cooling fans. See Figure InstallingtheConveyor-AllovensEXCEPTTandem models VI. Conveyor InstallationLift the conveyor and position it in the oven as shown Link Orientation Tandem Oven Heavy-Duty VII. Final AssemblyInstalling the Conveyor and Belt Tandem oven models Conveyor FrameAdditional Information Gas Ovens Additional Information Electric OvensConnection Gas Meter DuringpressuretestingnoteoneofthefollowingIf incoming pressure is over 14 W.C mbar, a sepa Gas LineLocation and Description of Controls II. Normal Operation STEP-BY-STEP DailystartupprocedureDailyshutdownprocedure Display, and wait forIII. Quick Reference Digital Temperature Controller Actual TempQuick Reference Troubleshooting Oven will not heat Controls may be set incor RectlyMaintenance Maintenance Daily Cooling Fan/Vent Locations PS360EWBII. Maintenance Monthly Removing Air Fingers and PlatesSplit Belt Idler Shaft Key Spare Parts Kit components all ovens Additional Key Spare Parts Kit components for gas ovens

PS300F specifications

The Middleby Marshall PS300F is an advanced pizza oven designed for high-volume operations while ensuring consistent quality and superior performance. This innovative oven combines cutting-edge technology with user-friendly features, making it an ideal choice for restaurants, pizzerias, and foodservice operations that demand efficiency and speed.

One of the standout features of the PS300F is its patented airflow technology. This system is designed to circulate hot air evenly throughout the cooking chamber, which helps create a perfectly baked pizza with a crispy crust and thoroughly cooked toppings. The even heat distribution ensures that every inch of the pizza receives the same level of cooking, reducing the chances of hot or cold spots that can affect the overall quality.

The PS300F is equipped with a double-deck design, allowing for increased production capacity without requiring additional floor space. Each deck can accommodate multiple pizzas at once, making it an ideal choice for busy establishments where speed is crucial. Operators can load pizzas into both decks simultaneously, significantly reducing cooking times during peak hours.

Another key characteristic of the PS300F is its digital control panel. This user-friendly interface allows operators to set precise cooking times and temperatures, ensuring optimal results every time. The oven also features programmable settings, enabling users to save specific cooking parameters for different types of pizzas, simplifying the process during high-volume service.

Energy efficiency is another important consideration in the design of the PS300F. The oven is constructed with high-quality insulation to minimize heat loss, contributing to lower energy consumption. This makes it not only an environmentally friendly option but also a cost-effective choice for businesses looking to reduce their utility bills.

Durability is a hallmark of the Middleby Marshall brand, and the PS300F exemplifies this commitment to quality. Built with robust materials and designed to withstand the rigors of a busy kitchen, this oven promises longevity and reliable performance.

In conclusion, the Middleby Marshall PS300F is a top-tier pizza oven that brings together innovative technology, efficiency, and durability. Its advanced features make it an excellent investment for any foodservice operation focused on delivering high-quality pizzas in a fast-paced environment. With its combination of performance and ease of use, the PS300F is poised to enhance any culinary experience.
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