Windpilot PACIFIC LIGHT, Manual

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1.6.9.2 HYDRAULIC WHEEL STEERING
• Connecting the steering lines to the emergency
tiller of a hydraulic steering system is pointless,
as the tiller cannot possible supply enough force
effectively to move the hydraulic cylinder. A bypass
valve will not help either.
• Good steering can only be had by this route if the
transmission components of the wheel steering
system are completely disconnected from the
quadrant (emergency). A word of advice for
anybody still tempted to try connecting a servo-
pendulum system up to a hydraulically operated
main rudder: don’t do it - you’ll end up steering by
hand!
• Hydraulic steering systems are in any case very
rare on smaller boats.
1.7 THE PENDULUM RUDDER
1.7.1 MOUNTING THE RUDDER BLADE
• The pendulum rudder blade 440 should be
mounted with the rounded edge facing forward and
the sharp edge facing aft.
1.7.2 POSITIONING THE RUDDER BLADE
• The pendulum rudder blade must be angled
down and aft exactly in line with the rudder shaft,
otherwise the balance will be off.
• Adjusting the rudder blade aft reduces the force
generated (by reducing the balance proportion).
• Adjusting the rudder blade forward increases the
balance proportion excessively, with the result that
the rudder controls the windvane instead of the
other way around.
• Both the adjustments described impair the
performance of the system and make steering
problems inevitable.
1.7.3 OVERLOAD PROTECTION
• Mounting bolt 435 for the rudder blade 440 should
be tightened gently so that the rudder blade can still
swing up if it strikes something below the water.
• The rudder blade is retained in the shaft fork by
friction only.
1.7.4 PENDULUM RUDDER LIFT-UP
• Tie one end of the red lift-up line through ring 431
and secure the other end to the pushpit.
• Raise the pendulum rudder, take the red line once
around the windvane shaft 140 and rudder shaft
400 and tie it back to the pushpit.
• It is not possible to raise the pendulum rudder
out of the water while the boat is moving as the
resistance is generally too high. Lift-up under way
may be possible at speeds below two knots.
• The pendulum rudder may be dropped back into
the operating position at any time.