for AC Electric Motors

Overhaul

Procedure:

1. Incoming Meggar test

2. Check shaft run out (only if shaft turns – incoming inspection)

3. Dismantle

4. Test stator windings (visual, meggar, surge, high potential as required – medium voltage)

5. Inspect stator leads and lugs

6. 286T and smaller – bearing housing visual and fit test. Shaft journals – visual

7. 300 series and larger – mic and record all bearing housing and shaft journals

8. Digitally photograph condition (as required)

9. Estimate

10. Core test stator and/or rotor as required on 400 series and larger**

11. Steaming of stator, endbells and all components

12. Oven dry stator

13. Test stator winding again (as above)

14. Test and record winding and bearing temperature limiting device(s)**

15. Dynamic balance of rotor and, as required, external fan(s) – 300 series and larger**

16. Dipping stator as required (solvent-less high strength polyester resin)

17. Thermastically controlled oven cure stator

18. Assemble complete unit

19. Meggar, test run and document results

20. Vibration report on 300 series and larger**

21. Paint

22. Block shaft Non Nema frames and babbit bearings**

23. Prepare for shipping as required

24. It is recommended that vibration monitoring occur on site after installation of motor*
    

**Recommended procedure at additional cost

 

  All work performed to ISO 9001:2000 Quality Assurance Standards.

Optional Procedures:

Inspection & certification for CSA approved explosion proof motors

Warranty:

90 days on workmanship – refer to EASA Warranty Procedure.

180 days on workmanship – if installed by GPR professionals.