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26 SportPilot and SportPilot Plus - Owner’s Handbook
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4.3 Installing the rudder position sensor – optional
A rudder position sensor will improve your SportPilot’s performance
by providing precise information about the rudder’s position.
CAUTION:
If your boat has a hydraulic helm pump, you MUST fit a rudder
position sensor for the SportPilot to function accurately.
Depending on your boat’s steering system, you will need to use either
a linear or rotary rudder sensor. Generally, you will need:
• a linear rudder sensor if your boat has an outboard engine steered
by a ‘bullhorn’ style hydraulic ram
• a rotary rudder sensor if your boat has an inboard ram.
Linear rudder position sensor – installation
(hydraulic outboard steering systems)
Note: Hydraulic outboard steering systems MUST be fitted with a
linear rudder position sensor.
The linear rudder position sensor (part number: Z229) is designed for
‘bullhorn’ style hydraulic outboard steering systems. It is totally
weatherproof and designed to be mounted on the bullhorn ram.
Linear rudder position sensor – dimensions
Positioning the linear rudder position sensor
You MUST ensure that:
• there is equal travel of the sensor shaft to port and starboard
(as shown by
A
on the diagram)
• the sensor shaft is parallel to the ram – if the shaft is not parallel,
the U-bracket could be driven off the ram when the shaft extends
• the sensor is clear of any obstructions when the engine(s) are
turned hard-over or tilted up
425 mm (16.75 in)
32 mm
(1.3 in)
D5389-1