Frequently Asked Questions & Answers

• Motor Inspection Procedure After Storage

• Class "B" vs. Class "F" Insulation

• Rewinding USEM Inverter Duty Motors

• Space Heaters: Importance & Warranty

• Trickle Voltage Heating

• Reversing Direction of Rotation on TEFC Motors

• Part Winding Start of a 12 Lead Y-Delta Motor

• Identifying Leads of a Nine Lead Three-Phase Motor

• Adjusting Rotor End Play

• Oil Foaming

• Rewind Data

• Across-the-Line Connection of Multi-Lead Motors

• Bearing Types

• Lubrication Instructions

• Bearing Temperature by RTD

• Insulated Bearings

• Insulated Bearing Location

• Bearing Insulation Instructions

• Spring Loaded Thrust Bearings

• Water Cooled Bearings

• Accessory Leads

• Winding Temperature Detectors

• Alarm and Trip Temperature Settings

• Temperature Rise

• Motor Frame Surface Temperatures

• Erroneous RTD Temperature Readings

• Technical Service/ Start-Up Service

• Bearing Housing Vibration

• Machine Mounting

• Limits of Bearing Housing Vibration

• Unfiltered Vibration Limits on Standard Machines

• Vibration Banding

• Testing Vibration

• Obtaining Parts

See Also:  Product Bulletin Index

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