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ST60 Tridata Instrument Owner’s Manual
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 ‘bull-
horn’ 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.
Figure 4-2: 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
81057_6.book Page 22 Tuesday, February 21, 2006 2:21 PM
