Raymarine 150/400 manual Securing the sensor to the boat, Attaching the sensor to the tiller arm

Step 5

24 Type 150/400 Autopilot System: Installation Guide

Horizontal alignment

When viewed from above (as shown in the previous illustration):

•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°: the rudder position sensor may be damaged if the steering system drives the sensor arm beyond these limits onto its end stops

Securing the sensor to the boat

Mount the rudder position sensor on a suitable base alongside the rudder stock and tiller arm:

1.Hold the sensor in place, mark the mounting holes, then remove the sensor. (If required, use the template at the back of the book.)

2.Drill the pilot holes using a 3 mm (1/8 in) drill bit.

3.Attach the sensor to the mounting base using the self-tapping screws supplied (No 8 x 3/4 inch, pan-head).

Note: To make minor adjustments to the sensor alignment, loosen the screws, rotate the sensor body, then re-tighten the screws.

Attaching the sensor to the tiller arm

Attaching the tiller pin to the tiller arm

1.For optimum performance, mount the tiller pin on the tiller arm 140 mm (5.5 in) from the rudder stock.

Note: If necessary, you can fit the tiller pin anywhere between

101mm (4 in) and 190 mm (7.5 in) from the rudder stock. This will not affect autopilot performance, but will slightly alter the scaling of the rudder angle display shown on the control unit.

2.Hold the tiller pin in place on the tiller arm, mark the mounting holes then remove the tiller pin. You can mount the tiller pin so it is aligned either along or across the tiller arm.