Motor Trouble-Shooting Chart Caution: 1. Disconnect power to the motor before performing service or maintenance. 2. Discharge all capacitors before servicing motor. 3. Always keep hands and clothing away from moving parts. 4. Be sure required safety guards are in place before starting equipment. Problem: Like Causes: What To Do: Motor fails to start upon initial installation. Motor is miswired. Verify motor is wired correctly. Motor damaged and rotor is striking stator.
Motor Trouble-Shooting Chart 10/13/00 (continued) Problem: Like Causes: What To Do: Motor vibrates. Motor misaligned to load. Realign load. Load out of balance. (Direct drive application.) Remove motor from load and inspect motor by itself. Verify that motor shaft is not bent. Rule of thumb is .001" runout per every inch of shaft length. Motor bearings defective. Test motor by itself. If bearings are bad, you will hear noise or feel roughness. Replace bearings. Add oil if a sleeve of bearing.
Lubrication Instructions For Ball Bearing Motors Lubrication This motor is supplied with pre-lubrication ball bearings. No lubrication required before start up. Relubrication Intervals The following intervals are suggested as a guide: SUGGESTED RELUBRICATION INTERVALS HOURS OF SERVICE PER YEAR 5,000 Continuous Normal Applications Season Service Motor Idle 6 Months or More Continuous High Ambients Dirty or Moist Locations High Vibrations Where Shaft End is Hot (Pumps-Fans) H.P.
Installation Maintenance Instructions AC Induction Motors Installation After unpacking, check for damage. Be sure that shaft rotates freely. Before making electrical power connections, check for proper grounding of motor and application. All electrical contacts and connections must be properly insulated and enclosed. Couplings, belts, chains or other mounted devices must be in proper alignment, balance and secure to insure safe motor operation.