Baldor Global TEFC Series, Installation & Operating Manual

Page 1: ...o not install operate or attempt to perform maintenance procedures until you understand the Warning and Caution statements A Warning statement indicates a possible unsafe condition that can cause harm...

Page 2: ...Large AC Motors Global Series TEFC TEAO Horizontal Mounting Installation Operating Manual 6 08 MN409 This Manual http www manuallib com baldor mn409 large ac motors handbook html...

Page 3: ...Any trademarks used in this manual are the property of their respective owners This Manual http www manuallib com baldor mn409 large ac motors handbook html...

Page 4: ...Lubricated Instructions 3 3 G50 Sleeve Bearing Cartridge Removal Instructions 3 4 G5000 G315 G5810 and G40 Sleeve Bearing Cartridge Removal 3 5 Sleeve Anti Friction Bearing Bracket Removal 3 7 Anti F...

Page 5: ...al Information ii Table of Contents MN409 Appendix API Documentation A 1 Outline Drawing A 1 Anti Friction Bearing A 2 Sleeve Bearing A 3 This Manual http www manuallib com baldor mn409 large ac motor...

Page 6: ...design of the motor but also in the state of the art manufacturing used to produce and test these rugged and dependable machines It extends from the major assemblies such as rotors stators enclosures...

Page 7: ...ning operations Improper methods may cause muscle strain or other harm WARNING Before performing any motor maintenance procedure be sure that the equipment connected to the motor shaft cannot cause sh...

Page 8: ...ion should not exceed a 20 angle from the shank of the eye bolt or lifting lug Excessive lifting angles can cause damage Caution To prevent equipment damage be sure that the electrical service is not...

Page 9: ...This distributes the grease preventing bearing corrosion due to condensation or to the presence of contaminating gases near the motor After rotating the shaft replace protective packing and shaft ship...

Page 10: ...have natural ventilation some external source of forced and filtered air will be necessary The room should be such that the heat developed during operation can escape and will not be recirculated ove...

Page 11: ...2 Drill corresponding holes in the foundation 3 Ream all holes 4 Install proper fitting dowels 5 Mounting bolts must be carefully tightened to prevent changes in alignment Use a flat washer and lock w...

Page 12: ...re applying power Do not apply AC power before you ensure that all grounding instructions have been followed Electrical shock can cause serious or fatal injury National Electrical Code and Local codes...

Page 13: ...em operating before starting the motor 6 Manually rotate the motor shaft to ensure that it rotates freely 7 When the driven machine is likely to be damaged by the wrong direction of rotation it is bes...

Page 14: ...s excessive vibration shut down immediately and investigate Check for coupling and key unbalance lack of lubrication foot planarity and structural resonance RPM Max Vibration Amplitude Peak to Peak on...

Page 15: ...2 6 Installation Operation MN409 This Manual http www manuallib com baldor mn409 large ac motors handbook html...

Page 16: ...g and ultimately failure Only a slight unbalance of voltage applied to a poly phase motor will cause large unbalance currents and result in overheating 3 Check power supply total harmonic distortion t...

Page 17: ...eases greases with EP additives or greases other than those specifically listed on the motor lubrication nameplate and this instruction manual Failure to follow these instructions may result in lubric...

Page 18: ...housing 3 Add the recommended volume of the recommended lubricant per the motor Lubrication Nameplate or Table 3 3 using a hand operated grease gun 4 Start the motor and run with the relief plug open...

Page 19: ...e 5 Remove drain plug at bottom of bearing housing and drain oil from the reservoir 6 Loosen and remove the bolts at the split line of the bearing housing 7 If the motor has insulated bearings and mee...

Page 20: ...ove all wax from bearing surfaces using solvent Dry bearing before assembling in housing The bearings are spherical self seating Apply a coat of oil to the outside diameter of the bearing liner and al...

Page 21: ...rench slowly rotate the shaft 2 turns in each direction 9 Remove bearing as listed in section G5000 G315 G581 0 and G40 Sleeve Bearing and Cartridge Removal Inspect bore of both bearing halves for bur...

Page 22: ...e outboard side cavity of the bearing 100 Grease inner caps and bracket bearing housing to 60 full 8 Assemble end shield in reverse order See Sleeve Anti Friction Bearing Bracket Removal Rotor And Sta...

Page 23: ...that the dirt will be blown into inner crevices Oil grease tar and wax can be removed by adding a Nonconductive Detergent to the wash water After washing it is necessary to dry the windings in an oven...

Page 24: ...heck for proper lubrication oil level leaks Check alignment and coupling float Drain and refill change filters in flood lube system Inspect for source of contamination Check bearing bore and shaft O D...

Page 25: ...3 10 Maintenance Troubleshooting MN409 This Manual http www manuallib com baldor mn409 large ac motors handbook html...

Page 26: ...sistance bridge and converting the resistance to temperature 4 Will respond thermally to normal load and temperature changes but not fast enough to provide locked rotor protection Winding Thermostat P...

Page 27: ...ect Thermistor leads are brought to a terminal strip located on the coil head Separate leads continue to controller located in the accessory conduit box where customer connections are made Remarks Can...

Page 28: ...ed on the installation of the winding RTDs imbedded in the winding as specified by NEMA Bearing RTDs should be installed so they are in contact with the outer race on ball or roller bearings or in dir...

Page 29: ...earing Thermostat Also called Bearing Temperature Relay or Gas Bulb Switch Purpose To indicate the bearing temperature has exceeded normal operating temperatures Principle of Operation The device oper...

Page 30: ...ble needle valve to control flow rate this valve MUST be adjusted Disconnect valve and adjust to flow rate shown on dimension sheet available from your Baldor Sales Office Description The oil lubricat...

Page 31: ...the bearing without the need to get close to the housing or shaft Current Transformers Description Current transformers are a means of measuring or sensing current flow through the input leads of AC...

Page 32: ...Appendix API Documentation API Documentation A 1 MN409 Outline Drawing This Manual http www manuallib com baldor mn409 large ac motors handbook html...

Page 33: ...r 9 Stator Frame Assembly 10 Lifting Provisions 11 Conduit Box Assembly 12 Rotor Shaft Assembly 13 Front End Thermal Barrier Not required for all designs 14 Front End Inner Cap 15 Inboard Snap Ring No...

Page 34: ...9 Sleeve Bearing Bracket 10 Stator Frame Assembly 11 Lifting Provisions 12 Conduit Box Assembly 13 Rotor Shaft Assembly 14 Sleeve Bearing Bracket 15 Float Adjusting Shim G50 only 16 Bracket Cover 17 F...

Page 35: ...A 4 API Documentation MN409 This Manual http www manuallib com baldor mn409 large ac motors handbook html...

Page 36: ...Baldor District Offices This Manual http www manuallib com baldor mn409 large ac motors handbook html...

Page 37: ...MN409 Printed in USA 6 08 BALDOR ELECTRIC COMPANY World Headquarters P O Box 2400 Fort Smith AR 72901 2400 479 646 4711 Fax 479 648 5792 www baldor com This Manual http www manuallib com baldor mn409...