Operation Manual

Robertson AP300X Autopilot
70 22081814H
Note ! Due to space limitations, it may be necessary to cut the length of the
transmitter rod to move the RF300 closer to the rudder post.
Tighten the mounting screws for both the RF300 feedback unit and the
transmitter rod ball joint.
Have someone observe the RF300 while someone else turns the helm
wheel through the complete range of travel from full port to full stbd.
rudder to verify that the mechanical linkage to the RF300 is not
obstructed.
JUNCTION UNIT
MAIN PCB
Rudder
Feedb.
*
* NON POLARIZED
(COLOR INDEPENDENT)
RF+
RF
3.3 Junction unit installation
The junction units (J3000X,
J
300X and J300X-40) are not
weatherproof and should be
mounted vertically as
shown in a dr
y
p
lace
between the control unit and
the drive unit. The junction
unit is designed to o
p
erate
in a location that provides
ambient temperatures below
+55°C (+130°F).
Cable connections
Use only shielded cables. This includes Mains input, drive units and if
necessary for the extension of the RF300 Rudder Feedback cable. The
clutch/bypass cable and the solenoid cable should be 1,5 mm
2
(AWG14). Signal cables should be 0.5 mm
2
(AWG20) twisted pairs.
The mains supply cable and the drive unit motor cable should have
sufficient wire gauge. This will minimize voltage drop and allow the
drive unit to operate at full power.