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Garmin CLASS B COMPACT Installation Instructions Manual
Garmin CLASS B COMPACT Installation Instructions Manual

Garmin CLASS B COMPACT Installation Instructions Manual

Drive unit

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CLASS B COMPACT DRIVE UNIT
INSTALLATION INSTRUCTIONS
Important Safety Information
WARNING
See the Important Safety and Product Information guide in the autopilot product box for product warnings and
other important 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 of the responsibility of safely operating your boat. Avoid
navigational hazards and never leave the helm unattended.
To avoid possible personal injury and damage to your boat, the autopilot system should be installed by a
qualified marine installer. Specific knowledge of marine steering and electrical systems is required for proper
installation.
CAUTION
To avoid possible personal injury, always wear safety goggles, ear protection, and a dust mask when drilling,
cutting, or sanding.
When in use, beware of hot surfaces on the heat-sink, motor, and solenoid components to avoid possible
personal injury.
NOTICE
The drive unit movement must be limited by physical end stops. Failure to install end stops will cause the drive
unit to act as a travel limiter and will damage the drive unit.
When drilling or cutting, always check what is on the opposite side of the surface to avoid damaging the vessel.
To obtain the best performance and to avoid damage to your boat, install this drive unit according to these
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.
Contacting Garmin Support
• Go to
support.garmin.com
for help and information, such as product manuals, frequently asked questions,
videos, and customer support.
• In the USA, call 913-397-8200 or 1-800-800-1020.
• In the UK, call 0808 238 0000.
• In Europe, call +44 (0) 870 850 1241.
Tools Needed
• Tiller arm (if needed)
• End stops to limit rudder travel (if not already present on the boat)
• Safety glasses
• Drill and drill bits
• Wrenches
• Torque wrench
• LOCTITE
638
retaining compound or equivalent (recommended)
®
• Hex or allen wrenches (for removing the device from the base for maintenance or repair)
February 2024
GUID-0954FD14-8C5B-48E8-AF7D-CB1B24776C3B v4

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Summary of Contents for Garmin CLASS B COMPACT

  • Page 1 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 ®...
  • Page 2: Mounting Location Considerations

    Mounting Location Considerations NOTICE This device should be mounted in a location that is not exposed to extreme temperatures or conditions. The temperature range for this device is listed in the product specifications. Extended exposure to temperatures exceeding the specified temperature range, in storage or operating conditions, may cause device failure. Extreme-temperature-induced damage and related consequences are not covered by the warranty.
  • Page 3 The cables connected to the drive unit should not be cut, because cutting the drive-unit cables voids your warranty. Consult the installation instructions provided with your Garmin autopilot to install the autopilot components and to connect the drive unit to the correct component.
  • Page 4: Maintenance

    Drive Unit Installation Example This example shows a typical cylinder installation on a 213 mm (8.39 in.) quadrant or tiller arm with a total rudder angle of 70 degrees (2 × 35 degrees). Item Description Measurement Distance from the center of the drive unit base to the tiller bolt when the rudder is 574.8 mm (22.63 in.) amidships.
  • Page 5: Specifications

    Removing the Drive Unit from the Base The drive unit can be removed from the base for service, if needed. 1 Remove the motor coil, secured by a 17 mm nut 2 Loosen and remove the allen screw and retaining plate 3 Remove the mounting pin to release the drive unit from the base.
  • Page 6: Item Description

    © 2023 Garmin Ltd. or its subsidiaries Garmin ® and the Garmin logo are trademarks of Garmin Ltd. or its subsidiaries, registered in the USA and other countries. These trademarks may not be used without the express permission of Garmin. LOCTITE ®...