Raymarine 150/400 - Manual (Page 34)

26 Type 150/400 Autopilot System: Installation Guide
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5.2 Linear rudder position sensor - installation
Introduction
The linear rudder position sensor (part number: M81188) is designed
for ‘bullhorn’ style hydraulic outboard steering systems. It is totally
weatherproof and designed to be mounted on the bullhorn ram.
Note: You must use the linear rudder position sensor on all hydraulic
outboard installations.
Linear rudder position sensor - dimensions
Mounting
1. Use the steering system to position the bullhorn ram amidships.
2. If necessary, release the hydraulic pressure from the boat’s
hydraulic steering system
Note: Contact your steering gear manufacture for advice on this step,
and follow their instructions for releasing the hydraulic pressure.
3. Loosen the starboard bolt that secures the bullhorn ram’s shaft to
the end bracket.
4. Fit the U-bracket (supplied) over the end bracket and the bullhorn
ram’s shaft.
5. Hand tighten the starboard bolt to hold the U-bracket in place.
6. Fully open the hose clamps (supplied) using a flat bladed
screwdriver, then hang them over the bullhorn ram.
7. Place the spacers (supplied) on the bullhorn ram and use adhesive
tape to secure them temporarily.
8. Pull out the rudder sensor’s shaft until its alignment mark is level
with the end of the barrel.
9. Position the rudder sensor against the spacers so the threaded rod
end of its shaft passes through the U-bracket.
425 mm (16.75 in)
32 mm
(1.3 in)
D5389-1
81173_3.book Page 26 Thursday, June 7, 2001 11:51 AM