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.
Summary of Contents for ST4000 Plus
Page 2: ...ST4000Plus Wheel Tiller Autopilots Owner s Handbook Document number 81131_4 Date 18thApril1999...
Page 3: ...2 Titleof handbook...
Page 27: ...14 S T4000P lusWheel TillerAutopilotsOwner sHandbook...
Page 49: ...36 S T4000P lusWheel TillerAutopilotsOwner sHandbook 1 1 OR Adjusting User Setup Values...
Page 84: ...C hapter6 Installation 71...
Page 93: ...80 S T4000P lusWheel TillerAutopilotsOwner sHandbook...
Page 109: ...96 S T4000P lusWheel TillerAutopilotsOwner sHandbook...
Page 117: ......