___________________________________________________H3000 Pilot Handbook
HB-3001-02
105
Pilot Does Not Steer in a Straight Line
Fault Description
The Pilot seems unable to steer straight, it continually overcorrects course
errors; the wake has an "S" like appearance as the boat first steers several
degrees off course to port followed by several degrees off course to
starboard.
Remedial Action
1)
Drive unit: check for any slack or backlash in the drive system, see
earlier section. For steering systems using hydraulics ensure that there
is no air in the system.
2)
Rudder reference sensor: check for any slack or backlash in the
assembly and associated linkages, see earlier section.
3)
Boat speed: check that the boat speed is operating correctly, if you are
using a manual boat speed ensure that it is realistic - low boat speed
values use more rudder movement.
4)
Settings: read the commissioning section of the manual carefully and
check that the settings in use are appropriate for the type of boat.
5)
Rudder gain: make large course changes using the pilot, if the gain
value is correct the rate of turn should be between 6 and 8 degrees per
second. Adjust if necessary, see page 60
6)
Boat lag: a boat lag value that is too small for the boat can cause
instability, try increasing the value slightly, see page 60
Summary of Contents for H3000 Pilot
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