1. Introduction
This manual provides essential instructions for the safe and effective operation of your Heng Long 1/16 Scale German Stug III RC Tank Model 3868. Please read this manual thoroughly before operating the tank to ensure proper function and longevity of the product.
2. What's in the Box
Carefully unpack all components and verify that all items listed below are present:
- 1 x Heng Long 1/16 Scale German Stug III RC Tank Model 3868
- 1 x 2.4G Radio Controller
- 1 x Pack of BB Pellets (6mm)
- 1 x Infrared Combating Transmitter
- 1 x Infrared Combating Receiver
- 1 x Idle Smoking Generator
- 1 x Smoke Liquid (availability may vary due to shipping regulations)
- 1 x 1800mAh Tank Battery
- 1 x USB Universal Charger
- 1 x Set of Accessory Kits
- 1 x English Manual Book (for reference, refer to this digital manual for updated information)

Image 1: The Heng Long 1/16 Scale German Stug III RC Tank Model 3868, its remote control, and product packaging.
3. Setup
3.1 Battery Installation and Charging
- Charge the Tank Battery: Connect the 1800mAh tank battery to the USB universal charger. Plug the charger into a suitable USB power source. The charging indicator will show the charging status. Ensure the battery is fully charged before first use (typically 4-6 hours).
- Install Tank Battery: Locate the battery compartment on the tank (refer to the diagram in the physical manual if available). Carefully connect the charged battery and secure it within the compartment.
- Install Remote Controller Batteries: The remote controller requires 1 D battery (included). Open the battery compartment on the back of the remote controller and insert the battery, observing correct polarity.
3.2 Loading BB Pellets
- Ensure the tank's power is OFF.
- Locate the BB loading hatch, typically on the turret.
- Carefully pour the 6mm BB pellets into the hatch. Do not overfill.
- Close the hatch securely.

Image 2: Top-down view of the tank, highlighting the turret and main gun assembly.
3.3 Adding Smoke Liquid (Optional)
- Ensure the tank's power is OFF.
- Locate the smoke generator's reservoir on the tank.
- Carefully add a few drops of smoke liquid into the reservoir. Do not overfill.
- Close the reservoir cap.
4. Operating Instructions
4.1 Powering On and Pairing
- Turn on the tank using its power switch.
- Turn on the remote controller. The controller and tank should automatically pair. An indicator light on both devices will confirm successful pairing.
4.2 Driving the Tank
The 2.4Ghz radio control system allows for precise movement. Use the joysticks on the remote controller to control the tank's movement:
- Forward/Backward: Push both joysticks forward/backward.
- Turning (Pivot Steering): Push one joystick forward and the other backward to turn in place. Push one joystick further than the other to make gradual turns.

Image 3: Side view of the RC tank, showcasing its tracks and road wheels.
4.3 Turret and Main Gun Control
- Turret Rotation: Use the designated controls on the remote to rotate the turret up to 340 degrees.
- Barrel Movement: Use the designated controls to move the main gun barrel up and down approximately 30 degrees.
4.4 Firing BB Pellets
The tank features realistic firing with 6mm BB pellets and a hull-recoil action (not barrel recoil) with sound effects.
- Ensure BB pellets are loaded (refer to Section 3.2).
- Aim the tank using the turret and barrel controls.
- Press the designated firing button on the remote controller. The tank will fire BB pellets up to 20 meters.
4.5 Infrared Combating System
The infrared combating system allows for multi-player tank battles.
- Ensure both the Infrared Combating Transmitter and Receiver are properly installed on your tank.
- When engaging other compatible RC tanks, aim your tank's infrared transmitter at the opponent's receiver.
- Successful hits will be indicated by specific sounds or movements from the opponent's tank.
Video 1: Demonstration of the Heng Long 1/16 Scale German Stug III RC Tank Model 3868 in action, showcasing its movement, firing capabilities, and infrared combat system.
Video 2: A brief preview demonstrating the Heng Long 1/16 German Stug III RC Tank Model 3868's movement and firing features.
5. Maintenance
5.1 Cleaning
- After each use, especially if operated outdoors, gently wipe down the tank with a dry or slightly damp cloth to remove dirt and debris.
- Avoid using harsh chemicals or solvents, as these can damage the plastic and paint.
- Ensure no debris is lodged in the tracks or road wheels.

Image 4: Close-up of the tank's tracks and suspension system, important areas for cleaning and inspection.
5.2 Battery Care and Storage
- Always disconnect the battery from the tank when not in use.
- Store batteries in a cool, dry place, away from direct sunlight and extreme temperatures.
- Do not overcharge or completely discharge the battery.
5.3 General Storage
- Store the tank in its original packaging or a protective container to prevent damage.
- Keep the tank and remote controller away from moisture and dust.
6. Troubleshooting
If you encounter issues with your RC tank, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Tank does not turn on. | Battery not charged or connected; Power switch off. | Charge and connect tank battery; Ensure power switch is ON. |
| Tank does not respond to remote. | Remote batteries low; Not paired; Interference. | Replace remote batteries; Re-pair tank and remote; Move to an area with less interference. |
| BB pellets do not fire. | No BB pellets loaded; Firing mechanism jammed. | Load BB pellets; Clear any obstructions from the firing mechanism (ensure tank is OFF). |
| Smoke generator not working. | No smoke liquid; Generator clogged. | Add smoke liquid; Gently clean the smoke outlet. |
7. Specifications
| Feature | Detail |
|---|---|
| Model | German Stug III Model 3868 |
| Scale | 1/16 |
| Control System | 2.4Ghz Radio Control |
| Firing Mechanism | 6mm BB Pellets with Hull-Recoil Action |
| Firing Range | Up to 20 meters |
| Turret Rotation | 340 degrees |
| Barrel Elevation | Approximately 30 degrees |
| Special Features | Infrared Combating System, Pivot Steering, Realistic Sound Effects, Smoke Generator |
| Recommended Age | 14 years and up |
| Batteries (Tank) | 1800mAh (included) |
| Batteries (Remote) | 1 D battery (included) |
| Manufacturer | Henglong |
8. Warranty and Support
For warranty information and customer support, please refer to the contact details provided with your purchase or visit the official Heng Long website. Keep your proof of purchase for any warranty claims.




