58
ST4000 Plus Wheel & Tiller Autopilots Owner’s Handbook
5. Press the sockets onto the tiller pins.
6. Move the rudder from side to side to ensure the linkage is free from
obstructions at all rudder angles.
Cabling
1. Run the rudder reference transducer cable back to the control head.
2. Connect the four wires (colour for colour) to the
Rudder
terminals.
6.5 Wheel drive actuator
General information
ï The Autohelm ST4000 Plus Wheel Actuator is designed to operate
with steering systems having between 1 and 3.5 turns lock to lock.
ï Steering systems with more than 3.5 turns may cause impaired
steering performance due to reduced rate of rudder application.
ï Lost motion in the steering system must not exceed 1% of total
movement ñ this is equivalent to 7.5∞ of free wheel movement for a
system with two turns lock to lock.
ï If lost motion exceeds 1%, it must be either corrected or a rudder
reference transducer must be fitted, otherwise steering performance
will be impaired.
Содержание ST4000 Plus
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