Simrad AUTOPILOT SYSTEM AP50 - Manual (Page 76)

Simrad AP50 Autopilot
74
20221032B
4.6 RF300S Rudder Feedback Unit
(For small to medium size vessels)
The RF300S Rudder feedback unit mounts close to the rudders,
and is mechanically linked to the rudder tiller arm or rudder
quadrant (refer to Figure 4-2 on page 75 for the recommended
mounting arrangement). Note that the RF300S transmitter arm
has two slots for the transmission link. The slots enable
maximum flexibility to provide the 1:1 mechanical linkage
relationship.
Note ! Do not try to remove the transmitter arm from the feedback unit.
The unit is factory-adjusted and needs no further adjustment at
installation than that described below.
As a starting point, it is desirable to set the transmitter rod to the
inner limit of the outer slot if possible (refer to Figure 4-2). Drill
and tap the rudder tiller arm so that the Y1 dimension is equal to
the Y2 dimension (Use 4.2 mm drill and 5 mm tap). Attach the
ball joint to the tiller arm and connect the transmitter rod to the
ball joint at the rudder tiller arm.
Turn the helm to set the rudder tiller arm to the approximate
center position.
Rotate the RF300S transmitter lever until it is set to center
position (use the alignment mark to line-up the transmitter lever
to be opposite the cable entry into the feedback unit).
Note ! Carefully observe the alignment marks. A rudder feedback
alarm may result if the alignment instructions (as per Figure
4-2) are neglected.
Attach the transmitter rod to the RF300S. Mount the RF300S
Rudder Feedback Unit in accordance with Figure 4-2. The
center of the RF300S should be in line with the center of the
rudderpost. Mount the RF300S to a suitable platform using the
screws provided. If necessary, add blocking material under the
RF300S to adjust the height of the transmission arm to be level
with the rudder tiller arm.