Honeywell BENDIX/KING KAP 140 Maintenance Manual page 21

1.5.6 KS 272C TRIM SERVO
The KS 272C trim servo actuator is used in the pitch axis to provide automatic and manual electric
trim control of the aircraft. It contains a servo motor with amplifier and engage clutch. The servo
receives a differential command input and drives the servo motor with a speed proportional to the
magnitude of the command. The command polarity will determine direction of servo rotation. The
command inputs have an impedance of at least 15K ohms. The interface is designed such that
an open command signal will not cause a servo drive of more than 25% of full--scale speed. The
servo motor voltage is output to the FCC for monitoring. A trim servo disable discrete input allows
the FCC to remove power from the servo motor drive. The trim actuator can be installed with either
a KM 275 or a KM 277 trim servo mount.
Revision 2, Dec/2002
CS:15574F02.IDU
BENDIX/KING
KAP 140
FIGURE 1--5 KS 272C PITCH TRIM SERVO
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