SECTION 4

 

MAINTENANCE

E. Blower Fan Shaft Bearing Lubrication

3. Remove the conveyor adjustment bolts to allow the

 

idler brackets to swing free.

CAUTION

Over-greasing damages the bearing seals and accelerates grease loss, which shortens bearing life. Wipe off any excess grease on and around the bearing. Reinstall the rear shroud to allow the oven to operate

Grease the two (2) main blower fan shaft bearings (Figure 4-43), using a special grease (MM P/N 17110-0015 lithium- base, high-temperature grease). ONLY ONE STROKE of a grease gun is required for each bearing.

Figure 4-43.

Upon completing the fan belt check (or replacement) and the bearing lubrication, reinstall the rear shroud, fastening it with six screws of the rear shroud.

F. Split-belt Conveyor Shaft Cleaning

It is very important that the split-belt conveyor drive and idler shafts are removed from the conveyor frame for cleaning and lubrication.

Figure 4-44.

4.Drop the idler shaft assembly clear of the frame through the front frame slot.

Figure 4-45.

5.Pull the front and rear shafts apart and apply oil to both the extended shaft and the interior of the hollow shaft. Using a rag, wipe oil off parts. Repeat until shafts are clean. Apply more oil to shafts then reassemble.

CAUTION

Use a turbine oil or light machine oil. DO NOT USE WD40 or similar product. These oils evaporate and cause the shafts to seize.

1. Perform the conveyor removal steps described in Monthly Maintenance, paragraph “A”. After the conveyor is removed, lay it on a flat surface.

2.Remove the two conveyor belts by disassembling the conveyor master links, as described in Monthly Mainte- nance, paragraph “H”. Then, remove the two conveyor belts by rolling them up.

Figure 4-46.

43

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Middleby Marshall PS540 (Triple), PS540E Blower Fan Shaft Bearing Lubrication, Split-belt Conveyor Shaft Cleaning
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PS540 (Triple), PS540 (Double), PS540E specifications

The Middleby Marshall PS540E, PS540 (Double), and PS540 (Triple) are advanced commercial conveyor ovens designed to deliver exceptional cooking performance for various food items. These ovens are engineered to provide consistent results while maximizing productivity, making them ideal for busy restaurants, fast-food establishments, and catering services.

One of the standout features of the PS540E is its energy-efficient design. Utilizing advanced jet-air technology, this oven circulates hot air evenly, ensuring that food is cooked thoroughly and consistently. The PS540E's energy-saving capabilities not only reduce operational costs but also minimize heat loss, which is crucial in maintaining a comfortable kitchen environment.

The PS540 series includes both double and triple options, allowing operators to choose the configuration that best fits their space and throughput needs. The double version is perfect for establishments that require high-volume cooking without sacrificing quality, while the triple model offers even greater capacity, making it highly suitable for large-scale operations. This versatility ensures that businesses can optimize their cooking process to meet demand without compromising on food quality.

Another significant aspect of the PS540 ovens is their user-friendly controls. Featuring a digital interface, operators can easily adjust cooking times and temperatures based on the specific requirements of each menu item. This level of control allows for precise cooking, ensuring that everything from pizzas to baked goods comes out perfectly every time.

The ovens are also built with durability in mind. Constructed from high-quality stainless steel, the PS540 series minimizes the risk of wear and tear over time, ensuring a long lifespan and reliable performance under continuous use. Additionally, the easy-to-clean design contributes to efficient maintenance, which is crucial in fast-paced kitchen environments.

Middleby Marshall's commitment to innovation shines through in the PS540 series, emphasizing energy efficiency, capacity, and ease of use. With their combination of advanced technology and robust construction, the PS540E, PS540 (Double), and PS540 (Triple) represent a significant investment for any foodservice operation looking to enhance its cooking capabilities while maintaining high-quality output and operational efficiency. These ovens support a wide range of menu items, making them a versatile choice for modern kitchens aiming for excellence in food preparation.
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