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Details the manual's content and applicability to the oil mist lubrication system.
Details the warranty terms and conditions for the equipment.
Instructions on how to register and activate the product warranty online.
Defines requirements and responsibilities for personnel performing installation and maintenance.
Outlines essential safety measures and code compliance for installation and operation.
Steps for connecting the oil mist system to the motor and its components.
Specifies requirements and properties for the lubricating oil used in the system.
Guidance on proper storage procedures for motors with oil mist lubrication or ready features.
Lists specific oil manufacturers and types compatible with the oil mist system.
Guidance on selecting the appropriate reclassifier based on motor frame size and speed.
This document is an installation and maintenance manual for the Toshiba TEFC 3-Phase Motor Oil Mist Lubrication System, identified by document number AEI-26-001 and dated September 2020. It provides comprehensive information for safely installing, operating, and maintaining the oil mist lubrication system specifically for Toshiba TEFC 3Ø Motors with anti-friction bearings.
The primary function of the Oil Mist Lubrication System is to provide a continuous, hermetically sealed lubrication method for motor bearings. Unlike traditional lubrication systems that may recirculate oil, this system uses only new oil, which significantly reduces bearing failures by preventing contamination and degradation of the lubricant. The system operates by creating an aerosol vapor, a mixture of oil and air (typically 1 part oil to 20,000 parts air), which is then passed through an orifice called a Reclassifier. The Reclassifier increases the speed of the oil/air flow and combines smaller oil particles before the mist is delivered to the bearing housing. This method ensures that a consistent and clean supply of lubricant reaches the bearings, extending their lifespan and improving motor reliability. The Oil Mist Lubrication System is particularly favored in the Hydrocarbon Processing Industry due to its sealed nature and the absence of moving parts within the lubrication delivery mechanism, contributing to its high efficiency and cost-saving benefits.
Key usage features of the system include its application to various motor frame sizes and operating speeds, as detailed in the provided tables for horizontal and vertical P-Base motors. The manual specifies the appropriate Reclassifier Symbol (A, B, or C) based on the motor's frame size, synchronous RPM, and bearing size (ODE and DE). This allows for precise matching of the lubrication delivery to the specific motor requirements, optimizing performance and protection. The system is designed for ease of connection, with clear instructions for installing the specified reclassifier to the top connection and the oil recovery trap to the bottom opening of the bearing housing. The manual also outlines the initial setup for motors labeled "Provisions Only for Oil Mist Lubrication" or "Oil Mist Ready," which involves purging existing oil or grease from the bearings before connecting the oil mist system. The visual representation of the typical oil/mist I/O flow illustrates the oil mist supply, case drain, wire entry seal, lip seal, and oil mist drain points, providing a clear understanding of the system's pathways.
Maintenance features are extensively covered to ensure the longevity and proper functioning of the system. The manual emphasizes the importance of using qualified personnel for all installation, operation, and maintenance tasks, defining a qualified person as someone with the necessary skills, knowledge, and safety training. It stresses adherence to national, state, and local codes, as well as industry standards such as ANSI, IEEE, NEMA, OSHA, NEC (NFPA 70), and NFPA 70E Maintenance Procedures. Regular checks are recommended, particularly for motors in extended storage or outdoor environments. For such cases, the units should ideally be connected to the oil mist system while in storage. If not possible, the grease level should be checked and refilled at three-month intervals, with the shaft rotated five revolutions minimum to redistribute the bearing grease. It is crucial to remove all bearing grease when connecting to the oil mist system. The manual provides specific recommendations for lubricating oil, requiring it to be rust- and oxidation-inhibited, stray-mist suppressed, and manufactured to established commercial standards. The oil's viscosity, flash point, and pour point are specified (ISO VG 68 or higher, flash point 350° F (177° C) or above, pour point -15° F (-26° C) or above), along with a table of recommended oil types from various manufacturers (e.g., Royal Purple SYNMIST®, Exxon/Mobil SYNESSTIC ENMIST®, Chevron Oil VISTAC®, Shell Oil OMALA®). This ensures that compatible and high-quality lubricants are used, which is vital for the system's performance. The document also includes important safety precautions, such as locking out all power before servicing, not bypassing safety devices, and ensuring proper electrical grounding, to prevent injury or equipment damage during maintenance. Any electrical or mechanical modifications without prior written consent from Toshiba International Corporation are strictly prohibited, as they may void warranties and safety certifications.
General| Poles | 2, 4, 6, 8 |
|---|---|
| Phase | 3 |
| Service Factor | 1.15 |
| Insulation Class | F |
| Ambient Temperature | 40°C |
| Protection Class | IP55 |
| Enclosure | TEFC (Totally Enclosed Fan Cooled) |
| Horsepower | Varies by model |
| Power Range | Varies by model |
| Voltage | 230V, 460V, 575V |
| Frequency | 60Hz |
| Frame Size | Varies by model |
| Mounting | Foot mounted |
| Altitude | 3300 feet (1000 meters) |
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