14

Possible Causes

• •Binding in the governor linkage
• •Control plugs not fully seated
• •Faulty field windings
• •Faulty governor actuator operation
• •Faulty governor controller board
• •Faulty start/stop switch (local and remote)
• •Fuel supply issues
• •Governor linkage binding
• •Grounded field windings
• •Grounded or shorted main windings
• •Improper field resistance (open to ground)
• •Improper loads
• •Improper quad winding resistance
• •Incorrect battery voltage
• •Incorrect engine speed
• •Incorrect engine speed (frequency)
• •Incorrect loads
• •Open or shorted wiring
• •Opens and/or shorts in stator and rotor
• •Overload Condition
• •Poor brush condition and contact
• •Quad leads not fully seated in connector to control

Suggested Actions

1. 1Check brush condition and contact
2. 2Check circuit breaker
3. 3Check control
4. 4Check engine speed
5. 5Check engine speed (frequency)
6. 6Check field windings
7. 7Check for binding in the governor linkage
8. 8Check for grounded or shorted main windings
9. 9Check for proper field resistance reading, open to ground
10. 10Check fuel supply
11. 11Check governor actuator operation
12. 12Check loads
13. 13Check output voltage
14. 14Check quad winding resistance
15. 15Check stator and rotor for opens and/or shorts
16. 16Check that control plugs are fully seated
17. 17Check that quad leads are fully seated in connector to control
18. 18Check the governor controller board
19. 19Check the governor linkage for binding and service as necessary
20. 20Perform checks in step 01
21. 21Verify control plugs are fully seated
22. 22Verify quad leads are fully seated in connector to control

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