WEG W22Xdb - Page 57

Flameproof motors | 57
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C
ENVIRONMENT
1
Equipment is adequately protected against corrosion, weather, vibration and other adverse factors
x
x
x
x
x
x
2
No undue accumulation of dust and dirt
x
x
x
x
x
x
3
Electrical insulation is clean and dry
x
Note: Items B7 and B8 account should be taken of the possibility of an explosive atmosphere in the vicinity of the equipment when using
electrical test equipment
EVERY 3 YEARS (Complete revision)
Complete motor.
- Take motor apart;
- Check spare parts.
Stator and rotor winding.
- Clean it;
- Check winding and wedges winding;
- Measure insulation resistance.
Bearings.
- Clean bearings;
- Replace, if require;
- Check half coupling and replace it, if required;
- Check shaft seat and repair it, if required.
Terminal box; grounding.
- Clean inside and refasten bolts.
Coupling.
- Check alignment and refasten bolts.
Monitoring devices.
- Take apart, if possible and test its operation capacity.
Filter.
- Clean it.
Air-air heat exchanger.
- Clean heat exchanger tubes.