Compatible — Inadvertently striking the com-

For these models: MCCK (Spec D), UN.

Procedure

1. 13. Remove the engine-generator adapter by removing
2. 1. Blown fuse or circuit
3. 1. Look for cause and repair.
4. 2. Disconnected wire or
5. 2. Reconnect wire or wires.
6. 4. Open, grounded or short circuit
7. 1. External short circuit on line.
8. 3. Brushes not making contact
9. 2. Generator overloaded.
10. 3. Shorted or grounded circuit in
11. 4. Engine not running properly
12. 3. Check brush springs for free
13. 4. Test with ohmmeter or
14. 1. Locate and eliminate short
15. 2. Remove part of load.
16. 3. Test with continuity tester or
17. 4. Refer to Engine Section-
18. 1. Defective bearing in end bell.
19. 1. Replace bearing.
20. 2. Brush rig loose.
21. 2. Retorque.
22. 3. Armature and field frame
23. 3. Check generator alignment and
24. 1. Generator overloaded.
25. 1. Remove part of load.
26. 2. Windings and parts covered
27. 2. Clean generator.
28. 3. Air intake restricted or
29. 4. Shorted, open or grounded
30. 3. Take necessary steps to allow
31. 4. Test with ohmmeter or
32. 1. Remove the generator end bell wrapper to expose
33. 2.
34. 3.
35. 4.
36. 5. Install the new brushes.
37. 6.

Source: manual:900-0196_Onan_UN-series_Generator__Controls_service_manual_09-1996.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.