1. Introduction
This instruction manual provides essential information for the assembly, operation, and care of your COBI Armed Forces CDU - 12 Tanks, Scale 1:72 Series II building block sets. This collection features 12 miniature tank models, each in 1:72 scale, designed for enthusiasts and collectors. Please read this manual thoroughly before beginning assembly to ensure a smooth and enjoyable building experience.
2. Safety Information
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
- Keep all small parts away from young children to prevent choking.
- Adult supervision is recommended during assembly for younger builders.
- Dispose of packaging materials responsibly.
3. Product Overview
The COBI Armed Forces CDU - 12 Tanks, Scale 1:72 Series II is a display unit containing 12 individual building block sets. Each set allows you to construct a miniature replica of a famous tank from the second half of the 20th century to the present day, all in a consistent 1:72 scale. The collection includes the following models:
- COBI-3095 (x2)
- COBI-3096 (x1)
- COBI-3097 (x2)
- COBI-3098 (x1)
- COBI-3099 (x2)
- COBI-3104 (x1)
- COBI-3105 (x1)
- COBI-3106 (x1)
- COBI-3107 (x1)
Each tank model is packaged in an attractive, colorful cardboard package with dimensions of approximately 17cm (6.69") x 5cm (2") x 14cm (5.51"). The overall CDU is designed for display and easy access to the individual sets.

4. Setup and Assembly
Each tank model comes with its own detailed instruction guide. Follow these general steps for assembly:
- Unpack: Carefully open the individual tank model package and remove all building blocks and the instruction booklet.
- Organize: Sort the blocks by color, size, or type as suggested in the individual instruction guide. This will simplify the building process.
- Follow Instructions: Refer to the step-by-step illustrations and text in the included instruction guide for each specific tank model. Pay close attention to the orientation and placement of each block.
- Secure Connections: Ensure all blocks are firmly pressed together to create stable connections.
- Verify: After completing each model, double-check against the images in the instruction guide to confirm all parts are correctly placed.
If you encounter any difficulties, refer to the troubleshooting section or contact COBI customer support.
5. Operating Your Models
COBI building block models are designed for display and gentle interaction. While specific features vary by tank model, common interactive elements may include:
- Movable Turrets: Many tank models feature turrets that can rotate 360 degrees.
- Adjustable Cannons: The main cannon on some models may have a limited range of vertical movement.
- Rolling Tracks/Wheels: Tracks or wheels are often designed to roll, allowing for gentle movement on flat surfaces.
- Opening Hatches: Some models may include small opening hatches or compartments.
Handle your models with care to avoid accidental disassembly or damage to delicate parts. Avoid excessive force when manipulating movable components.
6. Maintenance and Care
To keep your COBI tank models in excellent condition, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth or a small, soft brush to gently remove dust from the models. For stubborn dirt, a slightly damp cloth can be used, but avoid excessive moisture.
- Storage: Store models in a cool, dry place away from direct sunlight to prevent discoloration or warping of plastic parts.
- Handling: Always handle models by their base or sturdy sections to prevent stress on smaller, connected parts.
- Disassembly: If partial disassembly is required for cleaning or transport, do so carefully, referring to the original instruction guide if necessary.
7. Troubleshooting
Here are solutions to common issues you might encounter:
| Issue | Solution |
|---|---|
| Missing or damaged parts | Contact COBI customer support with your product model number and details of the missing/damaged part. |
| Difficulty assembling a section | Review the specific step in the instruction guide carefully. Ensure all previous steps are correctly completed and blocks are oriented as shown. Sometimes, a small error in an earlier step can affect later assembly. |
| Model feels unstable | Ensure all blocks are fully pressed together. Loose connections can lead to instability. Re-examine the base and critical structural points. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | COBI |
| Model Name | Armed Forces CDU - 12 Tanks, Scale 1:72 SERIES II |
| Item Model Number | 3109 |
| Scale | 1:72 (for individual tanks) |
| Number of Pieces | 1669 (total for all 12 models) |
| Material | Plastic |
| Recommended Age | 6 years and up |
| Item Dimensions (L x W x H) | 6.69 x 2 x 5.51 inches (for individual tank packaging) |
| Included Components | Instruction Guide (for each tank) |
9. Warranty and Support
COBI products are manufactured to high-quality standards. For information regarding product warranty, missing parts, or technical support, please visit the official COBI website or contact their customer service directly. Keep your purchase receipt as proof of purchase.
Official COBI Store: COBI Toys LLC Amazon Store