GE Energy GEI – 56128H NEMA 140 to 500 Frame Horizontal AC Small Industrial Motors Motor Installation And Maintenance Instructions
GEI-56128H Table of Contents I. General Information................................................................................................................................................. 3 A. How to Properly Use this Instruction Manual.................................................................................. 3 B. Safe Motor Operation Information....................................................................................................... 3 C. Safety Symbols .....................
GEI-56128H I. GENERAL INFORMATION A. How to Properly Use this Instruction Manual This installation and maintenance manual has been written to assist the user with proper procedures when handling, installing, operating and maintaining the equipment. All of the safety warnings and instructions in this book must be followed to prevent injury to personnel. This manual must be kept for future reference during installation, operation and maintenance. B.
GEI-56128H C. Safety Symbols Below is a safety symbol table that identifies the safety symbols that appear in this manual and on the motors. The use of a lightning bolt within an arrowhead symbol, enclosed in a yellow triangle warns of dangerous electrical voltage that could cause an electric shock to a person. This symbol identifies a terminal, which is intended for connection to an external grounding conductor for protection against electric shock in case of a fault.
GEI-56128H D. Description of Labels and Nameplates IEC and/or BS/EN 60079-0 IEC and/or BS/EN 60079-15 Motor rating and identification data are furnished on labels and nameplates. Packing nameplates provide a permanent record of motor characteristics, plant identification and date of manufacture. Below is an example of a label that is attached to the shipping package. MOD: 5KS184SAA305D KW: 1.5 RPM: 1170 VOL: 230/460 ENCL: TEFC FR: 184T MASS: 45.8 KG SERIAL # EDFT148U02 II.
GEI-56128H The bearings of grease-lubricated motors are greased at the factory with the grease cavity approximately 50% full. Rotate the shaft of all grease-lubricated motors 10-20 revolutions at two-month intervals. 2. General Purpose enclosed motors can be used where they are exposed to dirt, moisture, and most outdoor conditions. 3. Severe-duty enclosed motors can be used in highly corrosive or excessively moist areas.
GEI-56128H 2. On motors with dual mounting holes use the holes indicated per Figure 2A and 2B.
GEI-56128H 3. For base assembly and motor mounting, the mounting bolts must be tightened to prevent changes in alignment and possible damage to the equipment. It is recommended that a washer be used under each nut or bolt head to get a secure hold on the motor feet. As an alternative, flanged nuts or bolts may be used. The recommended tightening torques for medium carbon steel mounting bolts, SAE Grade 5, are listed below in Table 1.
GEI-56128H IV. OPERATION of the oil level sight gauges. The oil level should be checked only when the machine is not running. A. Steps Prior to Starting Do not flush out anti-friction bearings. The bearing grease supplied is sufficient for initial operation. WARNING: If the motor has been in a damp location, dry it out thoroughly before operating.
GEI-56128H 10. Space heaters should be de-energized during motor operation. B. General Cleanliness The interior and exterior of the motor should be kept free from dirt, oil and grease and conducting dust. Paper, textile or dusts may build up and block off ventilation. Any of these contaminants can lead to early motor failure. 11. Check the operating current against the nameplate value.
GEI-56128H F. Cleaning with Water and Detergent CAUTION: Failure to use polyurea base (NLGI Grade 2) or known compatible grease could result in premature bearing failure. This method is very effective in cleaning windings when used with a low-pressure steam jenny maximum steam flow 30 psi and 90°C. The procedure below must be followed for safe and effective re-greasing. The recommended frequency and quantity of grease is stated in tables 5 and 6.
GEI-56128H bearing cavity and replace the bearings and grease when the motor is removed from service for maintenance or reconditioning. Remove all bearing sensors prior to disassembly of the bearing. NOTE: Warranty may be voided if internal maintenance or repairs are not performed by a GE Energy Authorized Service Shop a. The drive end and opposite drive end sleeve bearing may be replaced by the following procedure: (1) For the opposite drive end the fan cover must be removed first.
GEI-56128H (2) Inspect the journals and polish them with crocus clothe if any scratches are detected. Do not allow any metal dust to fall into the housing when polishing the journals. (4) The sealing surfaces of the bearing should be coated with a sealing compound such as No. 3 Permatex. (3) Spread a thin coat of oil over the journal and bearing surfaces before reassembling. (5) To replace the bearing, reverse the disassembly procedure. VI.
GEI-56128H result in the motor no longer meeting the requirements of these standards. If major repairs are undertaken (such as rewinding a stator), proper facilities should be made available and suitable precautions observed. Recommended tightening torques for various parts is listed in Tables 4A and 5B below. VII. FAILURE WARNING: An extreme overload or electrical failure may result in heating or arcing which can cause the insulation to give off noxious fumes.
GEI-56128H X. TIGHTENING TORQUE FOR SAE HARDWARE General Notes related to fasteners: 1. Medium carbon steel fasteners per ASTM A449 Type 1. 2. Stainless steel fasteners per ASTM F593. 3. Threaded holes in parts for fasteners are per System 21, ASME/ANSI B1.
Typical 210 to 440 Frame Dripproof Construction GEI-56128H 16
Typical 140 to 440 Frame TEFC Construction GEI-56128H 17
GEI-56128H Typical 500 Frame TEFC Construction - Ball Bearing Typical 500 Frame TEFC Construction - Sleeve Bearing 18
GEI-56128H XI. Lubrication Guide (Excerpt from: GEK-72836E) Table 5: Motor Lubrication Guide Type of Service Easy Standard Severe Very Severe Typical Examples Valves, door openers, portable floor sanders, motor operating infrequently (one hour per day) Machine tools, air-conditioning apparatus, conveyors (one or two shafts), garage compressors, refrigeration machinery, laundry machinery, oil well pumps, water pumps, woodworking machinery Motor for fans, MG- sets, etc.
GEI-56128H Document Revision History Rev # 0 1 2 Date 09/01/99 02/19/03 06/22/10 Author G. Garver S. Long M. Bruin ISAAC # N/A 02-3231 10-0443 Description Conversion from PageMaker Revised to remove references to vertical oil-lubed motors.
