II. Maintenance Monthly | Middleby Marshall PS740E specification

II. MAINTENANCE – MONTHLY

NOTE: When removing the conveyor, refer to Figure 2-12 (in Section 2, Installation).

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 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 con- veyor sprocket.

D.Slide the conveyor out of the oven, folding it as it is removed.

E.Remove the end plugs from the oven. The end plugs are shown in Figure 1-1 (in Section 1, Description).

F.Slide the air fingers and blank plates out of the oven, as shown in Figure 4-2. 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 4-3. AS EACH FINGERISDISASSEMBLED,WRITETHE“LOCATIONCODE” 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 guide” 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

2-14 (in Section 2, Installation). 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.

Figure 4-2. Removing Air Fingers and Plates

Figure 4-3. Disassembling the Air Fingers

PS740E specifications

The Middleby Marshall PS740E is a cutting-edge conveyor oven designed to provide exceptional baking performance, particularly in high-volume food service operations. This innovative piece of equipment is particularly favored by pizza restaurants, quick-service eateries, and other establishments that require reliable and consistent cooking results.

One of the standout features of the PS740E is its advanced cooking technology. Equipped with the patented "Jetlube" system, the oven utilizes high-velocity forced air that enhances heat transfer and ensures even cooking across the product. This technology not only cooks food quickly but also preserves the flavor and texture of items, making it a preferred choice for commercial kitchens focused on quality.

The PS740E is built with an energy-efficient design that promotes sustainability while reducing operational costs. It features an electronic control system that allows operators to easily manage cooking times and temperatures, thereby enhancing productivity without sacrificing food quality. With adjustable conveyor speeds and temperature controls that can reach up to 600°F, the oven provides versatility in cooking a variety of menu items, including pizzas, sandwiches, and baked goods.

Another notable characteristic of the Middleby Marshall PS740E is its durable construction. Designed for the rigors of commercial use, it features stainless steel exteriors, which not only present a professional appearance but also ensure easy cleaning and maintenance. The oven's high-quality components are engineered to withstand the demands of daily use, further reinforcing its reputation as a reliable workhorse in any kitchen.

The PS740E is also designed with user convenience in mind. It is compact yet capable of accommodating large volumes of food, thanks to its efficient conveyor system. This allows for streamlined workflow in busy environments, minimizing wait times and enhancing customer satisfaction.

In conclusion, the Middleby Marshall PS740E stands out in the market for its innovative cooking technologies, energy efficiency, durable design, and user-friendly features. It represents a smart investment for food service operators looking to enhance their menu offerings while maintaining efficiency in food preparation and cooking processes.