Important Safety Information
- Age Recommendation: This building set is recommended for individuals aged 16 years and older.
- Small Parts Warning: This product contains small parts which may pose a choking hazard for young children. Keep out of reach of children under 3 years.
- Material Safety: All components are made from ABS plastic. Do not ingest.
- Assembly Environment: Assemble on a clean, flat, and well-lit surface to prevent loss of parts and ensure correct construction.
1. Setup and Assembly
This section provides guidance for unboxing and assembling your GoAssemb MOC-185157 Tri Axle Truck with Trailer Building Blocks Set. The set includes 421 precision-made pieces designed for a detailed and realistic model.
1.1 Unboxing and Component Check
- Carefully open the graphic carton packaging.
- Remove all plastic bags containing the building blocks.
- Verify that all 421 pieces are present. Refer to the parts list provided with the digital instructions if you suspect any missing components.
1.2 Assembly Instructions
The assembly process for this model is guided by electronic step-by-step instructions. These instructions are designed to enhance hands-on skills and critical thinking.
- Accessing Instructions: Locate the QR code provided in your package. Scan this QR code with a smartphone or tablet to access the detailed digital assembly guide.
- Follow Steps: Proceed through the digital instructions carefully, step by step. Each step illustrates the placement of specific blocks.
- Piece Quality: The pieces are designed to be free from rough edges, smooth to touch, and vibrantly colored. Ensure pieces fit together securely without excessive force.

Image 1: The assembled Tri Axle Truck component of the set.

Image 2: The assembled Trailer component of the set.
The model consists of a front long-nose truck and a rear trailer. The trailer is designed to be detachable and can be connected to the truck once both components are fully assembled.

Image 3: The Tri Axle Truck connected to its Trailer.
2. Operating the Model
Once assembled, the GoAssemb Tri Axle Truck with Trailer is a static display model. While it is not designed for motorized operation, its components can be manually manipulated.
2.1 Connecting the Trailer
- Align the trailer's hitch mechanism with the truck's fifth wheel coupling.
- Gently push the trailer forward until it securely connects to the truck. Ensure the connection is stable for display.
2.2 Disconnecting the Trailer
- Carefully lift the front of the trailer slightly to disengage the hitch from the truck's coupling.
- Pull the trailer away from the truck.
The trailer is designed to haul various machinery models (not included), such as excavators, loaders, or farming vehicles, enhancing its display versatility.
3. Maintenance
Proper care will ensure the longevity and appearance of your GoAssemb building block model.
3.1 Cleaning
- Use a soft, dry cloth or a soft-bristled brush to gently remove dust from the model's surface.
- For more stubborn dirt, lightly dampen a cloth with water (no harsh chemicals) and wipe the affected area. Dry immediately with a clean, dry cloth.
- Avoid submerging the model in water or using abrasive cleaners, as this can damage the plastic or fade colors.
3.2 Storage
- Store the assembled model in a cool, dry place away from direct sunlight to prevent discoloration and material degradation.
- If disassembling for storage, keep all pieces in a sealed container to prevent loss.
4. Troubleshooting
This section addresses common issues you might encounter during assembly or use.
4.1 Missing or Damaged Pieces
- If you find any pieces are missing or damaged upon opening the package, please contact GoAssemb customer support immediately. Refer to the 'Customer Support' section for contact details.
- Ensure you have thoroughly checked all packaging materials before concluding a piece is missing.
4.2 Assembly Difficulties
- Pieces not fitting: Double-check the digital instructions to ensure you are using the correct pieces and attempting to connect them in the correct orientation. Some pieces may require a firm but gentle push to connect.
- Model instability: Review previous assembly steps to ensure all connections are secure. An unstable section often indicates a loose or incorrectly placed block.
- Difficulty with digital instructions: If you have trouble viewing the QR code instructions, ensure your device has a stable internet connection and a compatible QR code reader application.
5. Specifications
Detailed specifications for the GoAssemb MOC-185157 Tri Axle Truck with Trailer Building Blocks Set.
| Specification | Detail |
|---|---|
| Brand | GoAssemb |
| Model Name | MOC-185157 |
| Material Type | Acrylonitrile Butadiene Styrene (ABS) |
| Number of Pieces | 421 |
| Recommended Age | 16+ years |
| Product Weight | 400 Grams |
| Package Dimensions | 22.1 x 14.6 x 10 cm |
| Theme | Vehicle |
| Educational Objective | Construction Skills |
| Assembly Required | Yes |
6. Customer Support
GoAssemb is committed to providing a 100% quality guarantee. If you encounter any issues with your product or require assistance, our customer support team is available to help.
- Contacting Support: For product inquiries, missing parts, or assembly assistance, please reach out to our customer support team. Contact information can typically be found on the product packaging or the GoAssemb official website.
- Response Time: We aim to reply to all inquiries as soon as possible to provide you with the best service.