1. Introduction
Thank you for choosing the MOC-26403 Steam Engine Building Block Model. This set allows you to construct a detailed replica of a steam engine using 1245 self-locking ABS plastic bricks. Designed for enthusiasts aged 18 and above, this model offers an engaging and rewarding building experience. This manual provides essential information for assembly, operation, maintenance, and troubleshooting to ensure you get the most out of your model.

2. Safety Information
- Choking Hazard: This product contains small parts and is not suitable for children under 3 years old. Keep all components away from infants and young children to prevent accidental ingestion.
- Age Recommendation: This model is recommended for individuals aged 18 and above due to its complexity and the presence of small components.
- Warning: This product can expose you to chemicals including phthalates (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
- Material Safety: The building blocks are made from environmentally friendly ABS plastic. While generally safe, avoid prolonged skin contact if irritation occurs.
3. Package Contents
Your MOC-26403 Steam Engine Building Block Model set includes the following:
- Approximately 1245 self-locking building block pieces.
- PDF instruction manual (digital format, no paper manual included).
- The set does not include stickers, printed parts (ordinary parts replace printed ones), or mini-figures/dolls.
- All parts are made from environmentally friendly ABS plastic.
- The product is packaged in an OPP bag, without an original box.
All parts are quality checked before shipping. In the unlikely event of missing or damaged parts, please refer to the 'Warranty and Support' section.
4. Assembly Instructions (Setup)
The MOC-26403 Steam Engine model requires careful assembly. Please follow the detailed steps provided in the digital PDF instruction manual.
- Access the PDF Manual: This product is a MOC (My Own Creation) and does not come with a paper instruction manual. You will need to download the PDF instruction manual. Please contact the seller for the download link if it was not provided with your purchase.
- Prepare Your Workspace: Find a clean, well-lit, and spacious area to assemble your model. Organize the building blocks by color and type to facilitate the building process.
- Follow Step-by-Step: Carefully follow each step in the PDF instruction manual. Pay close attention to the orientation and placement of each brick.
- Check for Missing Parts: As you build, if you encounter any missing parts, please refer to the 'Troubleshooting' section for assistance.
- Color Variations: Note that if some hard-to-find colors are specified in the instructions, other similar colors (e.g., light gray instead of sand blue) may have been used in your set. This will not affect the functionality or overall appearance of the model.
Visual aids for the assembled model:




5. Operating Instructions
The MOC-26403 Steam Engine is a mechanical model designed for display and manual interaction. It is not an electric model and does not include a battery or motor for automated operation.
- Manual Operation: Once fully assembled, you can manually turn the flywheel or other exposed gears to observe the intricate movement of the steam engine's internal mechanisms, such as pistons and linkages.
- Display: The model is designed to be a static display piece, showcasing the engineering and design of a steam engine. Place it on a stable surface away from direct sunlight or extreme temperatures.
- Gentle Handling: When interacting with the model, use gentle movements to avoid dislodging any parts.
6. Maintenance
Proper care will help preserve the appearance and integrity of your building block model.
- Cleaning: To clean the model, gently wipe it with a soft, dry cloth. For more stubborn dust or grime, a slightly damp cloth can be used, followed by immediate drying. Avoid harsh chemicals or abrasive cleaners.
- Storage: Store the model in a cool, dry place away from direct sunlight to prevent discoloration or warping of the plastic.
- Disassembly: If you need to disassemble the model, do so carefully to avoid damaging the bricks. Keep all parts organized for potential reassembly.
7. Troubleshooting
Here are solutions to common issues you might encounter:
- Missing Parts: If you discover any missing parts during assembly, please do not worry. Contact the seller directly, provide details of the missing components, and they will arrange for the missing parts to be reissued to you free of charge.
- Difficulty Assembling: Double-check the PDF instruction manual for the specific step you are on. Ensure all pieces are correctly oriented and firmly connected. Sometimes, a small misalignment can prevent subsequent steps.
- Loose Connections: If parts feel loose, ensure they are fully pressed together. ABS plastic bricks are designed to interlock securely.
- Model Not Moving Smoothly: If the mechanical parts (gears, linkages) do not move smoothly, check for any misaligned or incorrectly placed pieces that might be causing friction or obstruction. Ensure all connections are firm but not overly tight, which could impede movement.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | MOC-26403 |
| Number of Pieces | 1245 |
| Material | ABS Plastic (Environmentally friendly) |
| Block Type | Small building block (Compatible with Lego) |
| Block Shape | Self-Locking Bricks |
| Gender | Unisex |
| Recommended Age | 18+ |
| Is Electric | No Battery (Not motorized by default) |
| Barcode | No |
| Certification | CE |
| Certificate Number | CCI210800191EN-2CER |
| Origin | Mainland China |
| Approx. Package Weight | 1.2 kg |
9. User Tips
- Organize Parts: Before starting assembly, sort all pieces by color and type. This significantly speeds up the building process and reduces frustration.
- Take Your Time: Building complex models is a rewarding process. Don't rush; enjoy each step of the construction.
- Double-Check: Periodically review previous steps to ensure accuracy, especially if you encounter difficulties later in the build.
- Secure Connections: Ensure each brick is firmly pressed into place to create a stable and durable model.
10. Warranty and Support
Your satisfaction is important. The seller ensures that all parts are quality checked before shipping.
- Missing or Damaged Parts: If you find any missing or damaged parts upon receiving your set or during assembly, please contact the seller directly. Provide details of the issue, and they will send replacement parts to you free of charge.
- General Inquiries: For any other questions or support regarding the MOC-26403 model, please reach out to the seller through your purchase platform.





