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This service manual describes the Mesabi 5.7 S-Fin High Pressure Air-To-Oil Coolers and Air-To-Air Coolers, which are heat exchangers designed for reliability in demanding applications. These coolers are used to manage the temperature of oil and air in various systems, ensuring optimal performance and longevity of the equipment they serve.
The Mesabi 5.7 S-Fin coolers are modular heat exchangers that utilize a unique S-Fin design to facilitate efficient heat transfer. They are designed to cool high-pressure air or oil, making them suitable for heavy-duty industrial and mobile equipment. The modular design, featuring individual tubes held in place by rubber seals, allows for easy maintenance and repair, as individual tubes can be replaced rather than the entire core. This design also provides a flexible core that can withstand thermal shock, vibration, and pressure surges, which are common in harsh operating environments.
The coolers feature a 5.7 S-Fin design, which refers to the specific configuration of the fins on the tubes that maximizes surface area for heat dissipation. The "High Pressure" designation indicates their suitability for applications where the working fluid (air or oil) is under significant pressure. The modular construction with rubber seals is a key technical specification, as it allows for expansion and contraction of the core, preventing stress fractures and leaks that can occur in rigid heat exchanger designs. The seals are designed to maintain integrity under high pressure and temperature variations. The manual references specific part numbers for components like rubber seals (short end, long end), tube supports, and various tools, indicating a standardized and interchangeable parts system. For instance, the rubber seals are identified by part numbers such as 100276 for the long end and 100277 for the short end. The tube support is PN 100278.
The Mesabi 5.7 S-Fin coolers are designed for ease of use in terms of installation and operation. The modular nature means that they can be configured to fit various space constraints and cooling requirements. The robust construction ensures that they can operate reliably in challenging environments, including those with high vibration, thermal cycling, and pressure fluctuations. The ability to replace individual tubes simplifies field repairs, minimizing downtime and extending the service life of the cooler. The manual emphasizes the importance of consulting the nameplate for pressure rating, ensuring that the cooler is used within its specified operational limits.
Maintenance is a core strength of the Mesabi S-Fin design. The manual provides detailed instructions for external cleaning, tube removal, seal removal, plate preparation, seal installation, and tube installation, as well as frame assembly.
The manual emphasizes the importance of reading and following instructions carefully before proceeding with any service work or repairs to ensure proper functionality and to avoid voiding the warranty. It also provides contact information for L&M Radiator Inc. for customer service and parts inquiries.
General| Brand | L&M |
|---|---|
| Model | MESABI |
| Category | Air Conditioner |
| Language | English |
