Important Safety Information
Please read all safety warnings before assembly and play. Keep this manual for future reference.
- Choking Hazard: This product contains small parts and is not suitable for children under 3 years of age.
- Adult supervision is recommended during assembly and play, especially for younger children.
- Keep all packaging materials away from children to prevent suffocation.
Product Overview
The COGO 3910 Police Helicopter Building Block Set allows you to construct a detailed police helicopter and a motorcycle, complete with two mini-figures. This 164-piece set is designed to provide an engaging building experience and stimulate imaginative play.

This image displays the complete COGO 3910 set, featuring the blue and white police helicopter, an orange motorcycle, a police officer figure, and a criminal figure.
Package Contents
Before beginning assembly, please verify that all components are present. If any parts are missing, refer to the Troubleshooting section.
- 164 assorted building blocks for the police helicopter and motorcycle
- One police officer mini-figure
- One criminal mini-figure
- Instruction manual (this document)

The product packaging, illustrating the main components of the COGO 3910 set: a police helicopter, a motorcycle, and two character figures.
Assembly Instructions
Follow these steps carefully to assemble your COGO 3910 Police Helicopter and Motorcycle. Refer to the visual guides on the packaging for additional assistance.
- Prepare the Base: Begin by identifying the main base pieces for the helicopter body. Connect them firmly according to the visual guide.
- Build the Cockpit: Assemble the transparent cockpit section. Ensure the cover can open and close smoothly once attached.
- Attach Tail and Rotors: Construct and attach the tail section and the main rotor assembly. Verify the propeller can rotate freely after attachment.
- Add Landing Skids: Secure the landing skids to the underside of the helicopter. Ensure they are stable.
- Assemble Motorcycle: Construct the motorcycle using the designated blocks, ensuring the wheels can rotate freely.
- Assemble Figures: Put together the police officer and criminal figures by connecting their body parts.
- Final Check: Review all connections to ensure stability and proper function of movable parts.

This image provides a detailed view of the assembled police helicopter, highlighting its blue and white color scheme, transparent cockpit, and rotor blades.
Operating Instructions
Once assembled, your COGO 3910 set offers several interactive features:
- Helicopter Propeller: The main propeller on the helicopter can be manually rotated for dynamic play.
- Cockpit Access: The transparent cover of the helicopter's cockpit can be opened and closed to place or remove figures.
- Motorcycle Wheels: The wheels of the motorcycle are designed to rotate, allowing it to be pushed along surfaces.
- Figure Posing: The included figures have movable parts, allowing for various poses and interactive play scenarios.
Maintenance and Care
Proper care will ensure the longevity of your building block set:
- Cleaning: To clean the building blocks, gently wipe them with a soft, damp cloth. Do not use harsh chemicals, abrasive cleaners, or immerse in water.
- Drying: Ensure all parts are completely dry before storing to prevent damage or mold growth.
- Storage: Store the set in a cool, dry place away from direct sunlight to prevent discoloration or warping of plastic parts. Keep small parts in a designated container to avoid loss.
Troubleshooting
If you encounter any issues with your COGO 3910 set, please refer to the following common solutions:
- Missing Pieces: If you find any pieces missing upon opening the package, please contact COGO customer support with details of the missing part.
- Difficulty Assembling: Ensure you are following the steps in the correct order. Apply gentle, firm pressure when connecting blocks. Do not force pieces together, as this may cause damage.
- Loose Connections: If parts feel loose after assembly, double-check that they are fully pressed together. Some connections may require a firmer push to secure properly.
Specifications
| Feature | Detail |
|---|---|
| Model Number | 3910 |
| Brand | COGO |
| Number of Pieces | 164 |
| Material | ABS Non-toxic Plastic |
| Recommended Age | 3 years and up |
| Helicopter Dimensions (L x W x H) | 24 cm x 17 cm x 9.5 cm |
| Motorcycle Dimensions (L x W x H) | 6.5 cm x 1.5 cm x 3.5 cm |
| Educational Objective | Imagination Development |

This image shows the product box, which includes details about the set, such as the number of pieces and the dimensions of the assembled helicopter and motorcycle.
Warranty and Support
For warranty information or customer support regarding your COGO 3910 Police Helicopter Building Block Set, please refer to the contact information provided on the product packaging or visit the official COGO website. Specific warranty details are not included in this manual.