1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of your Lewmar TT 185 4.0kW 12V Gen 2 Bow Thruster. Please read this manual thoroughly before attempting any installation or operation. Retain this manual for future reference.
Safety Warning:
- Always disconnect power before performing any maintenance or inspection.
- Ensure all electrical connections are secure and properly insulated.
- Installation should be performed by qualified personnel to ensure compliance with marine standards and safety regulations.
2. Product Overview
The Lewmar TT 185 4.0kW 12V Gen 2 Bow Thruster is designed to provide reliable lateral thrust for improved vessel maneuverability. It features a robust design with a high-performance 5-blade propeller.
Image 1: Lewmar TT 185 4.0kW 12V Gen 2 Bow Thruster. This image displays the complete thruster unit, including the motor housing, control unit, and the tunnel with the 5-blade propeller visible at one end. The Lewmar brand name is visible on the white motor cover.
3. Setup and Installation
The Lewmar TT 185 Gen 2 thruster is designed for straightforward installation. It features a system that eliminates the need for a separate reservoir, reducing potential leak points and simplifying maintenance.
3.1 Pre-Installation Checks
- Verify that the vessel's power supply is 12V DC and can deliver the required current for a 4.0kW thruster.
- Ensure the chosen mounting location in the bow provides sufficient space for the thruster unit and allows for proper tunnel installation.
- Confirm that all components listed in the packaging are present.
3.2 Mounting the Thruster
- Install the thruster tunnel according to the vessel's specific requirements and marine engineering best practices.
- Secure the thruster motor and gear leg assembly to the tunnel using appropriate fasteners and sealing compounds to ensure a watertight fit.
- Connect the electrical cables to the motor terminals, ensuring correct polarity and secure connections. Refer to the wiring diagram provided with the product for detailed instructions.
Note: Professional installation is highly recommended for marine thruster systems to ensure safety and optimal performance.
4. Operating Instructions
The Lewmar TT 185 thruster provides powerful and responsive thrust for precise vessel control.
4.1 Basic Operation
- Ensure the vessel's main power is on and the thruster's circuit breaker is engaged.
- Activate the thruster control panel (joystick or push-button, sold separately).
- Apply thrust in the desired direction. The high-performance 5-blade propeller is designed to give equal thrust in both directions, providing consistent control.
- Release the control to stop thrust.
4.2 Operational Guidelines
- Use short bursts of thrust rather than continuous operation to prevent overheating and conserve battery power.
- Avoid operating the thruster in shallow water or areas with debris that could foul the propeller.
- Always be aware of your surroundings and other vessels when maneuvering.
5. Maintenance
The Lewmar TT 185 Gen 2 thruster is designed for minimal maintenance, featuring a sealed system with no reservoir to install, which also means no leaks and reduced maintenance requirements.
5.1 Regular Checks
- Propeller Inspection: Periodically inspect the 5-blade propeller for any damage, fouling (e.g., marine growth, fishing line), or obstructions. The spline-driven propeller design eliminates the need for a drive pin, simplifying inspection.
- Seal Integrity: Check the high integrity seal for any signs of leakage or wear. While designed for durability, regular visual inspection is recommended.
- Electrical Connections: Ensure all electrical connections are clean, tight, and free from corrosion. Apply a suitable marine-grade dielectric grease to terminals if necessary.
- Motor Housing: Keep the motor housing clean and free from excessive dirt or salt residue.
5.2 Winterization
For vessels stored in freezing conditions, ensure the thruster tunnel is drained and free of water to prevent ice damage.
6. Troubleshooting
This section outlines common issues and their potential solutions. For problems not listed here, contact Lewmar customer support or a qualified marine technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Thruster does not operate | No power to unit; Blown fuse/tripped breaker; Faulty control panel | Check battery connections; Inspect and replace fuse/reset breaker; Test control panel functionality. |
| Reduced thrust | Fouled propeller; Low battery voltage; Motor overheating | Inspect and clear propeller; Check battery charge and connections; Allow motor to cool down. |
| Unusual noise or vibration | Damaged propeller; Loose mounting; Debris in tunnel | Inspect propeller for damage; Check all mounting bolts; Clear any debris from the tunnel. |
7. Specifications
| Feature | Detail |
|---|---|
| Model | TT 185 4.0kW 12V Gen 2 |
| Item Model Number | 590008LEW |
| Brand | Lewmar |
| Voltage | 12 Volts |
| Power | 4.0 kW |
| Propeller Type | 5-blade, Spline Driven |
| Seal Type | High integrity seal |
| Reservoir Requirement | None (No reservoir to install) |
| Item Weight | 1 pounds |
| Package Dimensions | 9 x 5.75 x 0.38 inches |
| UPC | 743683033339 |
Note: Specifications are subject to change without notice. Always refer to the product packaging or official Lewmar documentation for the most current information.
8. Warranty and Support
Lewmar products are manufactured to high standards and come with a manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your product or visit the official Lewmar website.
For technical assistance, spare parts, or warranty claims, please contact Lewmar customer support or an authorized Lewmar service center. When contacting support, please have your product model number (590008LEW) and purchase details readily available.
You can find more information and contact details on the Lewmar Store on Amazon.
