TM 9-4940-568-10
3-50
3-7. GOVERNOR CONTROLLER GAIN ADJUSTMENT (CONT).
b.
Extreme Ambient Condition.
1
NOTE
The operating range of the governor controller is from –40F to + 180 F.
Adjustment to the GAIN potentiometer will be required when generator set is operated at
extreme temperatures.
Minor adjustment may be required depending upon type of fuel used.
(1)
Start engine (Para 2-15).
(2)
With the engine at operational temperature, adjust the GAIN potentiometer (1) clockwise until the engine
begins to hunt.
(3)
With the engine hunting, turn the GAIN potentiometer (1) couterclockwise until stable.
(4)
Turn the GAIN potentiometer (1) an additional 5% (1/2 division) counterclockwise to help ensure a
stable engine when cold started, or when operated at lower ambients.
NOTE
If prolonged operation at extreme low ambient temperatures perform Step (5).
(5)
Adjust GAIN potentiometer (1) counterclockwise as necessary to ensure stable operation.
c.
Follow-On Maintenance:
Start generator and check for proper operation, (Para 2-15).
END OF TASK
