Flexible Couplings

U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE

Initial

Installation

B. Parallel Alignment (See Figure 3B)

Fasten a dial indicator onto one coupling hub with the indicator button on the cylindrical surface of the opposite coupling hub. Rotate shafts together and take readings at four points, 90° apart. Relocate motor until total indicator movement in full rotation does not exceed .002". Transfer indicator to opposite hub and repeat the parallel alignment procedure. Recheck angular alignment as described in Step A.

FIGURE 3

MEASURE DISTANCE

BETWEEN FACES

MOTORLOAD

FLANGE

FIGURE 3A

ANGULAR MISALIGNMENT

C. Soft Foot Check

MOTORLOAD

FLANGE

FIGURE 3B

PARALLEL ALIGNMENT

Check and correct any "soft foot" condition to assure that equal pressure is exerted on each motor foot by the following shimming procedure. Bolt all motor feet down solidly to the motor bedplate or foundation. Mount the base of the dial indicator from the motor's foundation, and place and zero out the indicator on the motor shaft or coupling. Back off one of the take off end bolts and check indicator for change in reading, a .001 inch reading is maximum. Shim at foot if required and go to other take off end bolt. This procedure should be repeated on the opposite end until no reading is greater than .001 inches.

D. Hot Alignment

It is possible for motor shaft height to change relative to the driven equipment and this should be compensated for during the alignment procedure. Recheck parallel alignment (vertical) of coupled drive by repeating after normal operating temperature is reached. If shimming is changed, repeat alignment procedure to the extent necessary to assure proper alignment.

4.Electrical Connection

Refer to the motor nameplate for power supply requirements and to the connection diagram for connection parameters. Be sure connections are tight. Recheck carefully and assure that they agree with the connection diagram. Insulate all connections with electrical tape to insure that they will not short against each other or to ground. Be sure the motor is grounded to guard against electrical shock. Refer to the National Electrical Code Handbook (NFPA No. 70) and to local electrical codes for proper wiring, protection, and wire sizing. Be sure proper starting equipment and protective devices are used for every motor. For assistance, contact the motor starter manufacturer. Apply the above precautions to all accessories as well.

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.