Baldor Global TEFC Series Installation & Operating Manual

Baldor Global TEFC Series Installation & Operating Manual Manual pdf 9 page image

Section 1General Information1-4 General Information MN409Handling The motor should be lifted using the lifting lugs or eye bolts provided.1. Eyebolts or lifting lugs are intended for lifting the motor only with the standard factory installedaccessories such as tachometer, etc., the lifting means on the motor must not be used to lift themotor plus additional equipment such as gears, pumps, compressors, or other driven equipment.The lifting means on the motor cannot be used to lift assemblies of motor and other equipmentmounted on a common base.2. In all cases, care should be taken to assure lifting in the direction intended in the design of the liftingmeans. Lift using all lugs provided. Likewise, precautions should be taken to prevent hazardousoverloads due to deceleration, acceleration or shock forces. Angle of lift with rope or chain shouldnever be less than 45 degrees from the horizontal.Storage Do not unpack until ready for use. If the motor is not put into service immediately, the motor must bestored in a clean, dry and warm location. Several precautionary steps must be performed to avoid motordamage during storage.Caution: Sleeve bearing motors are shipped without oil. To avoid motor damage, do not rotate the shaftuntil you have filled the oil reservoirs to the proper level with recommended lubricant.1. The motor should be inspected periodically and the insulation resistance checked and recordedmonthly (see Checking Insulation Resistance in section 3). If there is a significant change ininsulation resistance, it should be investigated and corrective action should be taken. Consult yourlocal Baldor District office for additional data.2. Do not lubricate bearings during storage. G−Series TEFC anti−friction bearing motors are shippedwith the proper amount of grease in each bearing.3. At 30 day intervals, remove only enough packing to expose the shaft and remove the shaft shippingbrace, rotate the shaft (by hand) 10 to 15 revolutions. This distributes the grease, preventing bearingcorrosion due to condensation, or to the presence of contaminating gases near the motor. Afterrotating the shaft replace protective packing and shaft shipping brace.4. If the storage location is cold, damp or humid, the motor windings must be protected from moisture.This can be done by applying power to the motors’ space heater (if available) while the motor is instorage.5. If the motor is stored and directly exposed to weather conditions, it is important that the bearinggrease be inspected for the presence of water at the grease drain. If the grease is contaminated withwater, the motor must be disassembled, grease removed from the bearing(s) and housing(s) andbearing(s) inspected for corrosion. If corrosion is present, the bearing(s) must be replaced. If there isno corrosion, repack the bearing(s) / housing(s) with grease as instructed on page 13.6. G−Series motors with oil lubricated sleeve bearings are tested using an oil containing a rust inhibitor.This additive protects the bearings and associated structural parts from rust and corrosion. Prior toshipment the oil is drained. A thin film of oil remains on the vital parts providing short term temporaryrust protection.As soon as the motor has been received, the bearing oil reservoir should be filled to the required oillevel and with the proper oil lubrication. (See Bearing Lubrication for proper type).Unpacking Each Baldor motor is packaged for ease of handling and to prevent entry of contaminants.1. To avoid condensation inside the motor, do not unpack until the motor has reached roomtemperature. (Room temperature is the temperature of the room in which it will be installed).The packing provides insulation from temperature changes during transportation.2. When the motor has reached room temperature, carefully remove the motor from packaging.Lifting provisions are provided as eyebolts or cast lifting lugs located on top of the motor.Place a lifting hook in each of the lifting means provided and carefully lift the motor from its packing.Use a hoist with adequate capacity.This Manual:http://www.manuallib.com/baldor/mn409-large-ac-motors-handbook.html