GRF™ 10 Installation Instructions
WARNING
See the
Important Safety and Product Information
guide in the
product box for product warnings and other important
information.
Installation Preparation
CAUTION
Always wear safety goggles, ear protection, and a dust mask
when drilling, cutting, or sanding.
NOTICE
When drilling or cutting, always check what is on the opposite
side of the surface.
Package Contents
Item
Description
À
GRF™ 10
Á
M4 screw (×5)
Â
M6 locknut (×2)
Ã
M6 nut (×2)
Ä
Washer
Å
Tiller arm mount
Æ
Ball joint assembly (×2)
Ç
Threaded rod
Tools Needed
• Drill and
1
/
8
in. (3.2 mm) drill bit
• 8 and 10 mm wrenches
• 10 mm socket
• Metal saw appropriate for cutting a threaded rod
• #2 Phillips screwdriver
• Tape measure
• Pencil or marker
• Extension cables, if necessary (
page 2
)
Mounting Considerations
À
The sensor must be installed parallel to the tiller arm while the
rudder is amidships.
Á
The distance from the rotation axis of the tiller to the ball-joint
assembly must be the same as the distance from the rotation axis
of the sensor to the ball joint assembly.
Â
The sensor and rudder rotation axes must be aligned.
Ã
The maximum range of travel from stop to stop is 140° (70º from
the center position to each stop). Exceeding this range may result
in damage to the sensor.
Ä
The rod that connects the sensor to the tiller arm is 11.8 in. (300
mm) long, and can be shortened if needed.
The rod should be level when connected to the sensor and rudder.
If a perfectly level installation is not possible, the rod must be
installed /- 5º off level in order to function correctly.
Å
The rod should be installed perpendicular to the tiller arm and
sensor, using the second hole from the tip of the sensor for the ball-
joint connector.
Although the second hole is preferred, the other holes may be used
if necessary for the installation location.
Connection Considerations
• This sensor can be connected to a compatible Garmin
®
autopilot system with a 12-pin rudder feedback connector.
• The cable connected to the sensor is 78 in. (2 m) long.
◦ If needed, extension cables for the sensor are available
from your Garmin dealer.
◦ Do not cut the sensor cable to extend or shorten it.
Installation Procedures
Installing the Sensor
For the best results, keep the rudder amidships during the
sensor-installation process.
1
Rotate the sensor counter-clockwise so the arrows on the
back
À
line up in the center
Á
before marking the mounting
holes.
