Century 2000 Pilots Operating Manual page 41

MAINTENANCE
The Century 2000 has been designed and manufactured to render
reliable service; however, some of the system components will
require a regular inspection and service.
agencies selected for service are properly qualified and equipped
to render service on the Century 2000.
We have listed several items below to assist you in monitoring
you system maintenance.
1. Gyro Filters - The gyros used with the Century 2000 are
precision devices whose performance and service life are in
part dependent upon the quality of the air supply. Poor air
quality can significantly reduce gyro life (to hours) and
performance by contaminating bearings.
maintenance is good investment.
2. Aircraft Static Systems - Air leaks and water entrapment can
significantly affect altitude hold performance. Static System
maintenance and checks help not only the AFCS, but assure
proper function of static instruments. Altitude Hold units used
by Century Flight Systems, Inc., should NOT be disconnected
during static system checks as they are designed to withstand
such test without damage.
3. Periodic inspection and maintenance is recommended for
those items of the autopilot which attach to the aircraft control
systems. During normal inspection is a good time to make
these simple checks on the autopilot.
A. Inspect the bridle cable on the Pitch, Roll, and Yaw
Servos for
1. Condition
2. Tension
3. Freedom - move controls through full range of travel.
B. Inspect bridle Cable clamps for:
1. Obstruction.
2. Bolt Torque - 55 ± ± 5 inch pounds of torque. Note:
This higher than normal is FAA approved and required.
3. Gap between clamp halves - .005" minimum, assures
that cables are under clamping pressure.
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It is important that
Regular filter
C. Inspect Trim Capstans for:
1. Evidence of wear
2. The clutch should slip instead of cable on capstan if
overpowered.
D. Inspect Trim Cables for:
1. Fraying
2. Proper tension (high end of spec is usually best).
3. Freedom of travel.
EMERGENCY OPERATION
Check the Flight Manual Supplement located in the
Installation Manual for the C2000.
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