Raymarine autopilot + ST4000+ Owner's Handbook Manual page 97

82
Front view - rudder amidships
Top view - rudder amidships
Horizontal alignment
When viewed from above (as shown in the illustration above):
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•
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ST4000+ Wheel & Tiller Autopilots: Owner's Handbook
Parallel
Tiller arm
or quadrant
Aft
the sensor arm must be between 75 mm (3 in) and 310 mm (12 in)
from the tiller arm
with the rudder amidships, the sensor arm should be at 90° to the
connecting rod and directly opposite the cable entry point on the
sensor body
when the rudder moves from hardover to hardover:
• the sensor arm and the tiller arm must remain parallel to each
other at all times
• sensor arm movement must not exceed +/- 60°: if the steering
system drives the sensor arm beyond these limits it will
damage the rudder position sensor
Ball joints (level)
Connecting rod
Parallel
60˚
90˚
Minimum: 75 mm (3 in)
Maximum: 310 mm (12 in)
Sensor arm
Rudder position
sensor
Mounting base
Cable entry
60˚
Maximum
permitted
travel: +/- 60˚
D5387-1