66 ST4000 Plus Wheel & Tiller Autopilots Owner’s Handbook
D207
2. Run the drive cable back to the control head and connect to the
Drive terminals. The actuator is supplied with a waterproof plug
fitted to the rear of the gearbox tube. This allows the wheel and
actuator to be removed for maintenance/storage and leaves the
cabling intact aboard the boat. To remove the plug, pull back the
cover and twist the locking ring anti clockwise.