TM 10-4320-315-24
2-27. MAINTENANCE OF GOVERNOR CONTROL MODULE - (Cont)
(7)
If system is unstable (oscillates), slightly reduce the I and GAIN settings until oscillation stops.
(8)
Turn AUTO THROTTLE rheostat to the IDLE position.
(9)
Slowly turn the GAIN adjustment CW until the governor actuator lever again begins to oscillate, then turn
back until oscillation stops.
(10)
Upset the actuator lever (14) by hand and note how many oscillations it takes for the lever to again
stabilize. If not more than 5 oscillations are required to stabilize, adjustment is correct.
(11)
If adjustment is not correct (3-5 oscillations in step (10)) reduce the GAIN setting CCW one division and
while observing the actuator lever turn the I adjustment clockwise until the lever oscillates.
(12)
If the lever does not become unstable, upset it by hand.
(13)
When the lever oscillates, slowly turn the adjustment CCW until the lever is stable.
(14)
Upset the lever again, it should oscillate 3 to 5 times and then become stable.
(15)
If unit cannot be adjusted, try another control module and/or troubleshoot the system (malfunction 6).
(16)
Reinstall cover (8) on governor control module (6). Secure wiring clip (13) with washers (12), screws (11),
washers (10) and nuts (9).
(17)
Close control panel door (1).
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