The Driving Force In Motion

Ball Bearing ALTERNATING CURRENT ELECTRIC COMPANY

TITLE PAGE

All Imperial motors and generators are designed for industrial use. With proper operation and maintenance, they will perform continuously for many years within the range and rating established by the design. It is strongly recommended, therefore, that these in- structions be carefully observed and that the motor or generator be connected and operated as intended. Ob- servance of these procedures will result in long life, good performance and financial savings. When your equipment arrives, it should be checked immediately to see that all components have been re- ceived and that there is no evidence...

In selecting a location for the unit, first consideration should be given to ventilation. It should be far enough from walls or other objects to permit a free passage of Less maintenance will be required if unnecessary dirt, dust, moisture, liquids and similar hazards are kept away from units. The motor or generator should never be placed in a room with a hazardous process, or where flammable gases or combustible material may be present unless it is specially designed for this type of service. Foundations must be of ample size and proportion to support the unit. Local soil conditions vary so...

To keep the equipment operating at a high level of efficiency, a good maintenance program must be set up. Systematic inspections of the equipment should be scheduled, and records should be kept of the findings of these inspections. Examination of these records will indicate any sign of potential trouble. Since each industry has its own special conditions, an overall plan for periodic maintenance is not outlined here. However, the following pages give many tips on the maintenance of electrical equipment. Dirt, dust, oil and moisture are the greatest enemies of electrical equipment. When dirt or...

MAINTENANCE (Continued) SLEEVE BEARINGS Sleeve bearing motors are suitable for horizontal foot mounted operation only. Be sure to fill the oil chamber or oil system with properly selected oil before the motor is run for the first After an oil has been selected, it is advisable to con- tinue the same oil to prevent troubles caused by incom- patible lubricant mixtures. Under most circumstances, it is not advisable to add preservatives or rust preventing compounds to theoil system unlesssuch recommenda- tions are made by the manufacturer of the lubricant The frequency of checking the level and condition...

MAINTENANCE (Continued) Normally the commutators of DC generators and mo- tors should be smooth, highly polished and free of dirt, oil, grease or moisture. When an inspection is made, these features should be checked. If excessive sparking has occurred, the surface of the commutator will appear dull and black. In this case it should be cleaned with a fine commutator stone or garnet commutator paper (do not use emery cloth). See trouble shooting chart for possible brush and/or commutator problems. In event commutator requires finishing in a lathe, fol- low procedures which will ensure its concentricity...

The renewal parts recommended (table) are those most subject to wear in normal operation, or most subject to damage or breakdown due to abnormal operating condi- tions. Whether or not a supply of spare parts should be maintained depends entirely upon the evalua- tion of loss that can be sustained during the time required to procure such parts after an unexpected (table) are given only as a guide, but are believed to offer reasonable security against normal operating hazards. Where continuous opera- tion is of paramount importance, consideration should be given to increasing the quantities shown,...

MOTOR WON'T START 1. Overload relay tripped - Reset. 2. Fuses blown - Replace fuses. Restart only after checking #3thru #12. 3. Motor not connected properly - Check all connec- tions to motor and control. 4. Improper line voltage - Check motor nameplate to insure that motor is connected to proper voltage. Also check the voltage at the motor terminals to insure that wire size is adequate. 5. Jammed - Disconnect motor from load. If motor starts, check driven machine. 6. Control not operating - Check control circuit and 7. Overloaded - Reduce load or use larger motor. 8. Bearings stiff - Replace...

PARTS LIST - DC MOTORS & GENERATORS

PARTS LIST - AC MOTORS

PARTS LIST - AC ENCLOSED DISASSEMBLY INSTRUCTIONS for Motor-Generator Sets shown on Page 11 Frame 284-6/280 (1 -piece A.C. frame) II. 1. D.C. End - remove commutator bracket covers, release brushes (9) from brush holders (8) and remove commutator bracket (4). 2. A.C. End - remove stator housing louvered- covers, then remove stator housing (54) by B. To remove rotating unit: 1. Remove commutator bracket covers, then re- lease brushes (9) from brush holders (8). 2. Remove stator housing (4), as in A.2 above. (Note: baffle (20) must be re-positioned between frame (18) and stator housing (54) when...

PARTS LIST - MOTOR - GENERATOR SETS FOR DISASSEMBLY INSTRUCTIONS, SEE PAGE 12