TITAN II LARGE AC ELECTRIC MOTORS The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the properties of their respective owners. Emerson Motors 8100 West Florissant Ave. St. Louis, MO 63136 Phone: 888 637 7333 Fax: 314 553 2087 www.emersonmotors.com IN234-204B P/N 986269 HORIZONTAL MOTORS WITH ANTI-FRICTION BEARINGS INSTALLATION, OPERATION AND MAINTENANCE MANUAL Rev.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Safety SAFETY FIRST High voltage and rotating parts can cause serious injury or loss of life. Safe installation, operation and maintenance must be performed by qualified personnel. Familiarization with and adherence to NEMA MG2, the National Electrical Code, and local codes is recommended. It is important to observe safety precautions to protect personnel from possible injury. Personnel should be instructed to: 1.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE SECTION Table of Contents PAGE SAFETY ........................................................................................................................................................ i I. SHIPMENT ...................................................................................................................................... 1 II. HANDLING ..................................................................................................
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE I. Shipment & Handling SHIPMENT Prior to shipment, all Titan-II Motors undergo extensive electrical and mechanical testing, and are thoroughly inspected. Upon receipt of the motor, carefully inspect the unit for any signs of damage that may have occurred during shipment. Should such damage be evident, unpack the motor at once in the presence of a claims adjuster and immediately report all damage and breakage to the transportation company and U.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE III. Storage STORAGE 1. When to put a Motor in Storage. If a motor is not put into immediate service (one month or less), or if it is taken out of service for a prolonged period, special storage precautions should be taken to prevent damage. The following schedule is recommended as a guide to determine storage needs.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE (H) Storage All motors must have the shaft rotated a few turns once a month to maintain a lubricant film on bearing races. 3. Periodic Maintenance/ Insulation History The only accurate way to evaluate the condition of the winding insulation is to maintain a history of the insulation readings. Over a period of months or years these readings will tend to indicate a trend.
Storage U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE (C) Insulation resistance readings must not drop below the value indicated by the following formula: Rm = Kv + 1 Rm = minimum insulation, in megohms, at 40°C Kv = rated motor voltage in kilovolts (D) Dielectric Absorption Ratio: In addition to the individual test reading, a dielectric absorption ratio may be required.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE IV. Installation Location & Foundation INSTALLATION LOCATION When selecting a location for the motor and driven unit, keep the following items in mind: 1. The location should be clean, dry, well ventilated, properly drained, and provide accessibility for inspection, lubrication, and maintenance. Ambient vibration should be kept to a minimum. Outdoor installations on Open Dripproof motors require protection from the elements. 2.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE VI. Initial Installation INITIAL INSTALLATION 1. Coupling or Pulley Installation Remove the shaft locking device shipped on motor (as applicable). Wash protective coating from the motor shaft extension(s) with solvent. Install couplings or pulleys on motor shaft per manufacturers' recommended fit and mounting practices. Caution: Hammering or pounding with a mallet to install couplings or pulleys will damage bearings.
Initial Installation U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE 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.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Initial Installation 5. Reversing Rotation The direction of rotation may be reversed by interchanging any two, of the three power phases to the motor leads. Be sure that the power is off and steps are taken to prevent accidental starting of the motor before attempting to change any electrical connections. CAUTION Some motors have unidirectional ventilating fans. Running such a unit in reverse for any extended length of time will result in motor damage.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE I. Normal Operation When checks are satisfactory to this point, increase the load slowly up to rated load and check unit for satisfactory operation. 7.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Normal Operation & Doweling 2. Inspection & Cleaning Stop the motor before cleaning. ( CAUTION: See section on safety, page i). Clean the motor, inside and outside, regularly. The frequency depends upon actual conditions existing around the motor. Use the following procedures, as they apply: A. Wipe any contaminants from external surfaces of the motor. B. Remove dirt, dust, or debris from ventilating air inlets. Use compressed air as necessary.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE IX. Disassembly & Reassembly 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.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Lubrication E. Reassemble motor by reversing the disassembly procedure in Section IX “Disassembly”. Bearings should be installed per bearing manufacturer's recommended procedure. Pack bearings with grease per Section XI "Lubrication". F. Torque bolts per values in Table 4. G. Touch up any scratched or chipped paint to protect motor surfaces. XI. LUBRICATION A.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Lubrication Titan II motors are provided as standard with polyurea-based, NLGI Number 2 grease which is interchangeable with any of the following recommended greases: TABLE 3 Emerson Motor Co. Approved Greases For Titan II Motors with Antifriction Bearings MANUFACTURER DESCRIPTION U.S. ELECTRICAL MOTORS CHEVRON U.S.A. INC. SHELL OIL CO. EXXON COMPANY U. S. A. GREASE No. 83343 CHEVRON SRI GREASE No.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE Renewal Parts and Service TABLE 4 RECOMMENDED FASTENER TORQUE VALUES Fastener Size 1/4 - 20 UNC 5/16 - 18 UNC 3/8 - 16 UNC 7/16 - 14 UNC 1/2 - 13 UNC 9/16 - 12 UNC 5/8 - 11 UNC 3/4 - 10 UNC 7/8 - 9 UNC 1 - 8 UNC 1-1/8 - 7 UNC 1-1/4 - 7 UNC 1-3/8 - 6 UNC 1-1/2 - 6 UNC Torque* (Ft.- Lbs.) 8 17 30 50 75 110 150 260 430 640 800 1120 1460 1940 *Based upon using a dry (unlubricated) Grade 5 fastener XII.
Cutaway Drawings U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE XIII. CUTAWAY DRAWINGS 14 11 4 1 14 2 9 6 10 8 5 15 12 13 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. Stator Rotor Shaft Stator Coils Bearing Bearing Bracket Bearing Cap Grease Drain Plug Air Deflector Shaft Seal Slinger Stator Housing (Frame) Ventilation Baffles Terminal Box Motor Lifting Eyes Dowel Pin Holes 7 3 ODP/WPI 14 13 15 9 5 10 16 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE XIV. TROUBLESHOOTING TROUBLE Motor will not start POSSIBLE CAUSE Does not rotate. Usually line trouble single phasing at starter. CORRECTION Check source of power supply. See Safety instructions! Check overloads, controls and fuses. Check voltage, compare with nameplate voltage. Rotates but does not come up to speed. Load too heavy. Disconnect motor from load to verify if motor starts without load.
U.S. ELECTRICAL MOTORS INSTALLATION AND MAINTENANCE TROUBLE Motor overheating (Check with thermocouple or by resistance methods - do not depend on hand) POSSIBLE CAUSE Overload Troubleshooting CORRECTION Measure load; compare with nameplate rating; check for excessive friction in motor or complete drive. Reduce load or replace motor with greater capacity motor. Dirt in motor intake or exhaust openings Clean motor intake and exhaust areas. Clean filters or screens if motor is so equipped.
Installation Record XV.