Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of the K96214 Radial Aircraft Engine Model Building Kit. This kit allows you to construct a realistic 9-cylinder radial aircraft engine model with intricate mechanical details and a light version feature. Designed for enthusiasts aged 8 and above, it offers an engaging building experience and a functional display piece.

Safety Information
- WARNING: Not suitable for children under 36 months due to small parts which may present a choking hazard.
- This product is recommended for ages 8 and above. Adult supervision is advised for younger builders.
- California Proposition 65 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.
- Keep all packaging materials away from children to prevent suffocation.
Package Contents
Please verify that all components are present before beginning assembly:
- Building block set (approximately 1100 pieces)
- Paper instruction manual
- Battery box (for motorized functions)
- M-motor (for motorized functions)
- Additional assembly components as depicted in the manual
If any parts are missing or damaged, please refer to the "Warranty and Support" section for assistance.
Assembly Instructions
The K96214 model is a complex building kit designed for a rewarding assembly experience. Follow the included paper manual carefully for step-by-step instructions.
- Preparation: Unpack all building blocks and sort them by type or color as suggested in the manual. Ensure you have a clean, well-lit workspace.
- Step-by-Step Assembly: Refer to the detailed illustrations and instructions in the paper manual. Each step will guide you through connecting the 1100 pieces to form the radial engine structure.
- Mechanical Components: Pay close attention when assembling the internal mechanical transmission system, pistons, and fan blades. Proper alignment is crucial for smooth operation.
- Motor and Battery Box Installation: Integrate the M-motor and battery box according to the manual's diagrams. Ensure all connections are secure.
- Final Checks: Before operating, double-check all connections and moving parts to ensure they are correctly assembled and move freely.

The assembly process will reveal the precise piston motion, the internal mechanical transmission system, and the mechanism for hand-cranked engine angle adjustment.
Operating Instructions
Once fully assembled, your K96214 Radial Aircraft Engine Model can be operated to demonstrate its realistic mechanics.
- Powering On: Insert the required batteries (not included) into the battery box. Ensure the battery box is correctly connected to the M-motor.
- Activating the Motor: Locate the switch on the battery box or motor unit (refer to your paper manual for exact location). Flip the switch to the "ON" position to activate the M-motor.
- Observing Mechanics: The M-motor will drive the internal mechanical transmission system, causing the pistons to move precisely and the fan blades to rotate.
- Manual Adjustment: The model features a hand-cranked mechanism for adjusting the engine's up and down angle. Gently turn the designated crank to change the display angle.
- Powering Off: When finished, flip the switch to the "OFF" position to conserve battery life.

Maintenance
To ensure the longevity and optimal performance of your model, follow these simple maintenance guidelines:
- Cleaning: Dust the model regularly with a soft, dry cloth. For stubborn dirt, a slightly damp cloth can be used, but avoid excessive moisture.
- Inspection: Periodically check for any loose or detached building blocks. Reattach them firmly to prevent loss or damage.
- Storage: Store the model in a cool, dry place away from direct sunlight and extreme temperatures to prevent material degradation.
- Battery Care: Remove batteries from the battery box if the model will not be used for an extended period to prevent leakage.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Missing or damaged parts upon arrival | Manufacturing defect or shipping damage | Contact customer service immediately for replacement parts. |
| Motor does not operate | Batteries incorrectly installed, depleted, or motor connection is loose. | Check battery orientation and charge. Ensure the battery box is securely connected to the M-motor. |
| Moving parts (pistons, fan blades) are stiff or do not move | Incorrect assembly or misaligned pieces. | Review the assembly manual to ensure all gears and connecting rods are correctly aligned and not obstructed. |
| Light feature not working | Loose connection or faulty light component. | Check all light connections. If the issue persists, contact customer service. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | K96214 Radial Aircraft Engine Model |
| Brand | stemedu |
| Number of Pieces | Approximately 1100 |
| Main Material | ABS Plastic (Environment friendly material) |
| Recommended Age | 8+ Years Old (inclusive), also suitable for 14+y, 18+ |
| Engine Type | 9-Cylinder Radial Engine (Simulation Modeling) |
| Features | Motorized (M-motor, Battery box), Precise Piston Motion, Rotatable Fan Blades, Internal Mechanical Transmission, Hand-Cranked Angle Adjustment, Light Version |
| Dimensions (Assembled) | Approx. 23cm (Length) x 13cm (Width) x 13cm (Height) |
| Weight (Packaged) | Approx. 1.75 kg |
| Origin | Mainland China |
User Tips
- Organize Parts: Before starting, sort the building blocks into small containers or bags. This will significantly speed up the assembly process and reduce frustration.
- Take Your Time: This is a detailed model. Rushing through steps can lead to errors. Enjoy the process of discovery and construction.
- Double-Check Connections: For mechanical parts, ensure each connection is firm but not forced. Loose connections can lead to wobbly parts, while forced connections can damage pieces.
- Display with Pride: Once completed, this model makes an excellent display piece. Consider placing it where its intricate mechanics can be appreciated.
Warranty and Support
Your satisfaction is important. Please note the following regarding support for your K96214 model:
- Missing or Damaged Parts: All parts are quality checked before shipment. If you find any parts missing or damaged upon opening the package, please contact the seller's customer service immediately for assistance. Provide details of the missing/damaged parts and your order information.
- Assembly Assistance: For any difficulties encountered during assembly that are not covered in the manual, please reach out to the seller's support team.
- General Inquiries: For any other questions or concerns regarding the product, please contact the seller directly through your purchase platform.




