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Garmin Steering Actuator
The Garmin Steering Actuator delivers precision hydraulic control for US outboard engines, featuring a robust internal design for integration with Reactor 40 autopilot systems.
- Pump Type: Hydraulic Linear Actuator
- Flow Capacity: 73.22 Cubic Inches
- Cylinder: Outboard Engine Specific
- Max Pressure: 1000 PSI Rated
- Power Draw: 12V DC Input
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Description
Linear Piston and Hydraulic Control Analysis
Mechanical steering lag in kicker motors often leads to severe heading oscillation during low-speed trolling maneuvers. The Garmin Steering Actuator provides precision linear displacement to manage outboard motor positioning. This hardware ensures rapid response to autopilot course corrections.
Integration with the Reactor 40 Kicker system occurs via high-pressure hydraulic lines for synchronized motor articulation. The actuator utilizes a stainless steel shaft to resist saltwater pitting and internal seal degradation. Robust mounting hardware ensures the unit maintains structural integrity under constant mechanical vibration.
Strategic Vessel Application
Essential for small outboard kicker motors up to 20HP requiring a dedicated autopilot steering interface.
Technical Key Features
- Linear piston provides precision motor articulation
- Stainless steel shaft resists saltwater corrosion
- High pressure seals prevent hydraulic fluid leaks
- Universal mounting brackets support various engine brands
- Compact cylinder design fits restricted transom spaces
- Anodized aluminum body resists external oxidation damage
- Low friction seals minimize internal mechanical resistance
GARMIN Steering Actuator Specifications
| Drive Type | Electronic Steering Servo Actuator |
| Pump/Ram Capacity | Direct Mechanical Outboard Link |
| Flow Rate / Speed | Ultra-Responsive Precise Pivot |
| Max Pressure | System Torque Dependent |
| Cylinder Compatibility | Kicker Motors (5HP - 20HP) |
| Operating Voltage | 10V - 20V DC Support |
| Peak Current Draw | 10A Peak Load |
| Average Power Draw | 1.5A - 3A Typical Operation |
| Motor Type | High-Torque Gear-Driven Motor |
| Computer Compatibility | Reactor 40 Kicker Autopilot |
| Port Size / Thread | Proprietary Garmin Linkage |
| Drive Connection | Stainless Steel Drag Link |
| Rotation/Stroke Direction | Dual-Direction Pivot Motion |
| Mounting Type | Engine Bracket / Transom Clamping |
| Housing Material | Corrosion-Resistant Reinforced Polymer |
| Waterproof Rating | IPX7 Fully Submersible Grade |
| Operating Temperature | Standard Marine Environment Grade |
| Length (Overall) | 350 mm Total Span |
| Width/Diameter | 85 mm Compact Housing |
| Weight | 2.2 kg (4.8 lbs) |
| Included Accessories | Drag Link, Mounting Hardware |
| Key Mechanical Feature | Corrosion-proof for saltwater kicker use |
Garmin Steering Actuator Technical Guide
The Garmin Steering Actuator is a core mechanical component used in GHP Kicker and specialized small-boat autopilot systems. It converts electrical signals from the ECU into physical movement to steer outboard engines. It is designed for harsh saltwater environments, utilizing corrosion-resistant materials to ensure long-term reliability in exposed transom areas.
The actuator connects to the Reactor 40 ECU via a dedicated power and data cable. It provides the mechanical force needed to move the engine's tiller arm or tilt tube. When calibrated through the GHC 50, it offers precise steering increments, which is essential for maintaining a steady course during low-speed trolling or high-speed transit.
It typically mounts to the engine’s tilt tube or a specialized bracket on the transom. The installation requires a specific "link arm" to connect the actuator rod to the engine. Ensure there is sufficient clearance for the engine to tilt up and down without binding the actuator housing or cables.
The stainless steel ram should be cleaned with fresh water after every use to prevent salt crystal buildup. Periodically apply a light coating of marine-grade silicone grease to the rod to ensure smooth movement and to protect the internal seals from abrasion. Inspect the electrical boot for cracks to prevent moisture ingress.
This actuator is primarily designed for single-engine "kicker" or small primary outboard applications. For dual-engine setups, a tie-bar is generally required so that the actuator steers both engines simultaneously. For larger dual-engine hydraulic systems, a dedicated hydraulic pump is usually preferred over a mechanical actuator.
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