Emerson LARGE AC ELECTRIC MOTORS, 986269 manual Disassembly Reassembly, IX. Disassembly

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U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE

Disassembly

& Reassembly

IX. DISASSEMBLY

See Figure 4 for Bearing Housing Cross Section.

A.Disconnect power. Refer to section on Safety, page i.

B.Remove grills and/or weather protected tophat as required.

C.Remove bearing cap screws.

D.Remove bearing temperature detector probes from brackets as applicable.

E.Remove bracket to stator bolts and remove brackets.

F.If bearings are to be replaced, remove bearings from rotor shaft with a bearing puller. Pull on inner bearing race to remove bearings without damage.

G.To remove filters on weather protected units for inspection and cleaning, remove end cover and rotate latch. Slide filter out of tophat assembly.

Hazardous Location Motors: (Underwriter's Laboratories Requirements)

These motors are built to specifications approved by Underwriter's Laboratories. Assembly and inspection is made by authorized personnel at our factory before the Underwriter's Label is affixed. The Label is void if the unit is disassembled at other than U.S. Electrical Motors plant of manufacture or a U. S. Electrical Motors authorized and U.L. approved service shop, unless specific approval for such action is obtained from Underwriter's Laboratories.

FIGURE 4

1.BEARING BRACKET

2.BEARING CAP

3.BEARING

4.GREASE FILL FITTING

5.GREASE DRAIN PLUG

FIGURE 5

A

B

A. FILTER ACCESS COVER

(SEE TABLE 5 FOR REQUIRED END CLEARANCE TO REMOVE FILTER)

X.

REASSEMBLY

B. DOWEL PIN HOLES

 

A. Clean all machined and mating surfaces on bearing caps, bracket fits, etc. B. Remove old grease from grease cavities and bearings.

C. Carefully inspect bearings for nicks, dents or any unusual wear patterns. Damaged bearings must be replaced.

D. If motor is supplied with insulated bearing shaft journals, inspect for damage and repair as necesary before reassembly.

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Contents Titan Page Safety Safety FirstTable of Contents Page Shipment II. HandlingStorage III. StorageStorage Storage Installation Location Foundation Installation LocationFoundation GroutingInitial Installation Initial InstallationAngular Misalignment Flexible CouplingsParallel Alignment Operated uncoupled from driven equipment Normal Operation NO-LOAD Vibration LimitsVelocity, Inches per second Speed, RPMNormal Operation DowelingVIII. Doweling IX. Disassembly Disassembly ReassemblyReassembly Dowel PIN Holes Lubrication XI. LubricationManufacturer Description Electrical Motors Renewal Parts Service XII. Renewal Parts and ServiceRecommended Fastener Torque Values Fastener Size Torque* Ft.- LbsCutaway Drawings XIII. CutawaydrawingsTroubleshooting XIV Troubleshooting Possible Cause CorrectionTrouble Possible Cause Correction Installation Record Record

986269, LARGE AC ELECTRIC MOTORS specifications

Emerson Large AC Electric Motors, specifically model 986269, exemplify cutting-edge technology and exceptional design, catering to the diverse needs of industrial applications. These motors are engineered for reliability, efficiency, and performance, making them suitable for various sectors, including manufacturing, mining, and oil and gas.

One of the standout features of the Emerson 986269 motor is its robust construction. Built to withstand harsh operational environments, this motor has a durable housing that protects it from external contaminants such as dust, moisture, and chemicals, thereby prolonging its lifespan. The design promotes efficient heat dissipation, which minimizes overheating risks and enhances both performance and reliability.

Energy efficiency is a critical aspect of the Emerson 986269 AC electric motor. Utilizing advanced design methodologies, the motor offers high efficiency ratings, which translates into lower operational costs and reduced carbon footprints. It meets or exceeds the latest efficiency standards, making it an eco-friendly choice while ensuring optimal performance in various applications.

Another significant feature is its versatility. The Emerson 986269 motor is available in various sizes and configurations, making it suitable for different tasks and load requirements. Its adaptability allows seamless integration into existing systems, making it a valuable asset for businesses looking to upgrade their machinery without extensive modifications.

The motor employs state-of-the-art technologies such as premium-quality bearings and insulation systems, contributing to its quiet operation and minimal maintenance requirements. This means reduced downtime and increased productivity, both vital for maintaining competitive advantages in today's fast-paced industrial landscape.

Moreover, Emerson's commitment to safety is reflected in the design of the 986269 motor. It is equipped with advanced thermal protection features and complies with international safety standards, ensuring secure operation even in challenging conditions.

In conclusion, the Emerson Large AC Electric Motor 986269 sets the benchmark for performance, reliability, and efficiency in industrial applications. With its robust construction, energy-efficient design, and advanced technologies, it is an investment that promises long-term operational benefits and peace of mind for users. Whether for heavy-duty tasks or general industrial use, this motor remains a top choice for companies aiming to enhance their operational efficiency and productivity.
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