1. Introducció
This manual provides essential information for the safe and effective operation, installation, and maintenance of your Nilight 3500 lbs Electric Boat Trailer Winch. Please read all instructions carefully before use to prevent injury or damage to the product.
The Nilight marine multi-purpose winch is powered by a 12V DC motor, offering a rated line pull of 3500 pounds, a marine rated line pull of 6500 pounds, and a rolling rated line pull of 9500 pounds. It features a 3-stage planetary gear drive system suitable for boats up to 18 feet and a maximum weight of 5,000 lbs.
2. Informació de seguretat
- Utilitzeu sempre l'equip de seguretat adequat, inclosos guants i protecció ocular, quan feu servir el cabrestant.
- Ensure the winch is securely mounted before operation.
- Do not exceed the rated pulling capacity of the winch.
- Keep hands and clothing clear of the cable, hook, and drum during operation.
- Never operate the winch if the cable is frayed, kinked, or damaged.
- Disconnect power when the winch is not in use or during maintenance.
- Avoid prolonged continuous operation to prevent overheating. Allow the motor to cool down between uses.
- Ensure the area around the winch and the load is clear of bystanders.
3. Contingut del paquet
Verifiqueu que tots els elements que s'enumeren a continuació s'inclouen al vostre paquet:
- 1x 12V 3500 lbs boat trailer winch
- 1x Wireless electric remote control
- 1x Wired electric remote control
- 1x manovella
- 1x cable d'alimentació
- 1x placa de muntatge
- 1x Winch hook

Figure 3.1: Package Contents. Includes the winch unit, wireless remote, wired remote, hand crank, power cable, mounting plate, and winch hook.
4. Especificacions
| Característica | Especificació |
|---|---|
| Model | 923B |
| Font d'alimentació | 12V DC |
| Extracció de línia classificada | 3500 lliures |
| Marine Rated Line Pull | 6500 lliures |
| Rolling Rated Line Pull | 9500 lliures |
| Max Boat Size | 18 FT |
| Max Boat Weight | 5,000 lliures |
| Relació de reducció d'engranatges | 265:1 |
| Material del cable | Acer galvanitzat |
| Dimensions del cable | 1/4 inch diameter x 34.5 feet length |
| Dimensions del producte | 9 x 8 x 7 polzades |
| Pes de l'article | 26.5 lliures |

Figure 4.1: Winch Dimensions. Please confirm the size of your trailer joint before purchasing.

Figure 4.2: High Quality Steel Cable. The winch includes a 1/4 inch diameter, 34.5 feet long galvanized steel cable.
5. Configuració i instal·lació
The Nilight electric boat winch is designed for easy installation with a tool-free, slide-on 2-inch hitch mounting plate. This allows for quick attachment to any 2-inch ball hitch receiver.
5.1 Muntatge del cabrestant
- Attach the mounting plate to your 2-inch ball hitch receiver.
- Slide the winch onto the mounting plate, ensuring it is securely fastened. The hanging board design allows for assembly and rescue in approximately 1 minute without fixed installation.
- Confirm all connections are tight and secure before proceeding.

Figure 5.1: Easy Installation. The winch adopts a hanging board design for quick setup.
5.2 Connexió d'alimentació
Connect the provided power cable to a 12V DC power source, such as a vehicle battery. Ensure proper polarity: red to positive (+) and black to negative (-). The power cable is designed with a waterproof sealed plug for safer operation.

Figure 5.2: Power Cable. Connect to a 12V DC power source.
6. Instruccions de funcionament
The Nilight winch offers dual-direction electric winching (power in, power out) and a freewheel operation mode. It can be controlled via wireless remote, wired remote, or manually with the hand crank.

Figure 6.1: Three Control Modes. Choose between wireless, wired, or manual operation.
6.1 Electric Operation (Wireless/Wired Remote)
- Ensure the winch is powered and securely mounted.
- Connect the wired remote control or ensure the wireless remote has fresh batteries and is paired.
- To pull the cable in, press the "IN" button on the remote.
- To release the cable, press the "OUT" button on the remote.
- The winch features an automatic braking system for secure holding of the load.
6.2 Freewheel Operation
To quickly unspool the cable without using motor power, engage the freewheel clutch. This allows the cable to be pulled out manually. Refer to the winch unit for the specific clutch engagement mechanism. Ensure the clutch is fully re-engaged before applying power to pull a load.
6.3 Manual Operation (Hand Crank)
In emergency situations or when electric power is unavailable, the winch can be operated manually using the provided hand crank.
- Attach the hand crank to the designated shaft on the winch.
- Turn the hand crank clockwise to pull the cable in, and counter-clockwise to release it.

Figure 6.2: Manual Winching. The hand crank provides an alternative operation method.
7. Manteniment
- Inspecció del cable: Regularly inspect the steel cable for signs of wear, fraying, kinks, or damage. Replace the cable immediately if any damage is found.
- Lubricació: Periodically lubricate moving parts and gears as recommended by general winch maintenance practices.
- Neteja: Keep the winch clean and free from dirt, debris, and corrosive materials. Wipe down the exterior after each use, especially in marine environments.
- Connexions elèctriques: Check all electrical connections for corrosion or looseness. Ensure the waterproof sealed plug remains intact.
- Emmagatzematge: Guardeu el cabrestant en un lloc sec i protegit quan no l'utilitzeu.

Figure 7.1: Gear Mechanism. The winch features a low-noise, precision gear design.
8. Solució De Problemes
- Winch Not Operating:
- Check power connections to ensure they are secure and properly polarized.
- Verify the 12V DC power source is providing adequate voltage.
- Ensure remote control batteries are functional or the wired remote is properly connected.
- Check for any tripped circuit breakers or blown fuses in the power supply line.
- Winch Operating Slowly or Weakly:
- The load may exceed the winch's rated capacity. Reduce the load or use a snatch block to increase pulling power.
- Check for low battery voltage de la font d'alimentació.
- Inspect cable for proper spooling; uneven spooling can cause resistance.
- Cable Not Spooling Evenly:
- Guide the cable manually during spooling to ensure even distribution across the drum.
- Ensure the load is pulling directly from the center of the drum.
- Winch Overheating:
- Allow the winch to cool down. Avoid continuous operation for extended periods.
- Ensure the load is within the winch's capacity.
9. Garantia i Suport
Nilight is committed to providing quality products. While specific warranty details are not provided in this manual, if you encounter any quality problems with your electric winch, please contact Nilight customer support for assistance. Keep your purchase receipt for any warranty claims.
For further assistance or inquiries, please refer to the contact information provided with your purchase or visit the official Nilight weblloc.