Tools Needed - Garmin GHP 12 Instructions D'installation

Class A Drive Unit Installation
Instructions
To obtain the best performance and to avoid damage to your boat, install
the Garmin Class A Drive Unit according to the following instructions.
®
Professional installation of the drive unit is highly recommended, because
specific knowledge of rudder operation is required to properly install the
drive unit.
Read all installation instructions before proceeding with the installation.
If you experience difficulty during the installation, contact Garmin Product
Support.
Registering Your Device
Help us better support you by completing our online registration today.
• Go to http://my.garmin.com.
• Keep the original sales receipt, or a photocopy, in a safe place.
Contacting Garmin Product Support
Contact Garmin Product Support if you have any questions about this
product.
• In the USA, go to www.garmin.com/support, or contact Garmin USA by
phone at (913) 397.8200 or (800) 800.1020.
• In the UK, contact Garmin (Europe) Ltd. by phone at 0808 2380000.
• In Europe, go to www.garmin.com/support
for in-country support.
Important Safety Information

You are responsible for the safe and prudent operation of your vessel.
The autopilot is a tool that enhances your capability to operate your boat. It
does not relieve you from the responsibility of safely operating your boat.
Avoid navigational hazards and never leave the helm unattended.
See the Important Safety and Product Information guide in the autopilot
product box for product warnings and other important information.

Failure to install and maintain this equipment in accordance with these
instructions could result in damage or injury.
Always wear safety goggles, ear protection, and a dust mask when drilling,
cutting, or sanding.
This equipment should be installed by a qualified marine installer.
This equipment is only for use with Garmin autopilots.
When drilling or cutting, always check the opposite side of the surface. Be
aware of fuel tanks, electrical cables, and hydraulic hoses.
This equipment is not water resistant, and it must be installed in a location
Class A Drive Unit Installation Instructions
and click Contact Support
WARnInG
CAUtIon
Notice
where it is not exposed to immersion, dripping water, or hose spray.
Exposure to water will damage this equipment.
Failure to install this equipment in accordance with these instructions may
void the product warranty.
About the Class A Drive Unit
The Garmin Class A Drive Unit is a self-contained, mechanical, linear drive
unit that extends and retracts to steer the rudder. The drive unit connects to a
Garmin autopilot.
Power Consumption
The Garmin Class A Drive Unit consumes an average current of 1–2 A.
Hardware needed
• Tiller arm specific to your boat
• End stops (page 3)
• Mounting hardware (bolts, washers, and nuts

tools needed

• Safety glasses
• Drill and drill bits
• Wrenches
• M8 hex-drive bit or screwdriver
tiller Arm and End Stops
You can connect the drive unit to either an existing quadrant or to a tiller arm
(not included).
If you do not have a quadrant or are not able to install the drive unit at the
location of your quadrant, you must install a tiller arm that fits the diameter
of your rudder post and is the correct length for the installation location.
The included tiller pin is designed for use with a quadrant or tiller arm up to
0.79 in. (20 mm) thick.
The drive unit must not act as a travel limiter. Physical end stops (not
included) must be in place to limit the drive-unit travel to 11.57 in. (294 mm)
from fully retracted to fully extended, or damage to the drive unit will result.
Drive Unit Clutch Features
When the Garmin autopilot is engaged, the drive unit controls the rudder
accordingly. When the autopilot is disengaged, the clutch on the drive unit
releases, and you can manually resume control of the steering.
If a heavy load is present on the rudder when the autopilot is disengaged, the
clutch will hold the rudder in position until the load is manually relieved by
turning the helm.
(page 3)
page 4)
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