1. Introduction
Thank you for choosing the FLYLINKTECH JF-H-40DC 2-in-1 Folding Treadmill. This manual provides essential information for the safe and efficient operation, setup, and maintenance of your new fitness equipment. Please read all instructions carefully before use and retain this manual for future reference.
2. Important Safety Instructions
To reduce the risk of serious injury, always follow basic precautions when using this treadmill:
- Read all instructions in this manual before using the equipment.
- Keep children and pets away from the treadmill during operation.
- Place the treadmill on a solid, level surface with adequate clearance around it.
- Ensure the safety key is properly attached to both the treadmill and your clothing before starting.
- Do not operate the treadmill if it has a damaged cord or plug, or if it is not working properly.
- Wear appropriate athletic footwear and clothing.
- Do not exceed the maximum weight capacity of 180 kg (380 lbs).
- Consult a physician before starting any exercise program.
3. Setup and Assembly
The FLYLINKTECH JF-H-40DC treadmill is designed for installation-free setup, meaning it comes pre-assembled and ready for use after unpacking.
3.1 Unpacking
Carefully remove the treadmill from its packaging. Inspect for any damage during transit. Retain packaging for potential future transport or storage.
3.2 Unfolding the Treadmill
To transition from storage to running mode:
- Place the folded treadmill on a flat surface.
- Lift the handlebar assembly until it locks securely into the upright position.
- Ensure all locking mechanisms are engaged before use.

Image: The treadmill transitioning from a flat, folded state to an upright position with handlebars, ready for use.
3.3 Power Connection
Connect the power cord to the treadmill's power inlet and then to a grounded electrical outlet. Ensure the power switch is in the 'ON' position.
4. Operating Instructions
4.1 Control Panel and LED Display
The treadmill features an LED digital monitor that displays key workout data such as speed, time, distance, and calories burned. The control panel includes buttons for adjusting speed and selecting programs.

Image: Detailed view of the treadmill's control panel, highlighting the LED display, direct speed buttons, device holder, and safety key slot.
4.2 Safety Key
Always attach the safety key to the designated slot on the control panel and clip the other end to your clothing before starting the treadmill. This acts as an emergency stop mechanism.
4.3 Operating Modes
The treadmill offers two primary modes:
- Walking Mode: When the handlebar is folded down, the treadmill operates in walking mode with a speed range of 0.6-2.5 MPH (1-4 Km/h).
- Running Mode: With the handlebar in the upright position, the treadmill operates in running mode, offering speeds from 2.5-8.7 MPH (4-14 Km/h).

Image: Illustration of the treadmill in both running mode (with handlebars up) and walking mode (with handlebars folded down for under-desk use).
4.4 Remote Control
Use the provided remote control to adjust speed and stop the treadmill instantly. Point the remote towards the display for optimal response.
4.5 Smart App Integration (FitShow)
Connect your device to the treadmill via Bluetooth using the FitShow app. The app allows you to record exercise data, track progress, and engage with other users. A device holder is integrated into the control panel for convenience.

Image: The treadmill's display with a smartphone docked, showing the FitShow app interface for tracking workouts.
4.6 Preset Programs
The treadmill includes 12 pre-set programs designed to simulate various terrains and workout intensities. Refer to the display or app to select and customize your workout.
5. Maintenance
5.1 Cleaning
Regularly clean the treadmill with a damp cloth. Avoid using abrasive cleaners or solvents. Ensure the treadmill is unplugged before cleaning.
5.2 Running Belt Lubrication
To ensure smooth operation and prolong the life of the running belt, periodic lubrication is recommended. Refer to the specific instructions provided with your treadmill's lubrication kit or contact customer support for guidance.

Image: Cross-section diagram illustrating the multi-layer construction of the treadmill's running belt, designed for shock absorption and durability.
5.3 Storage
The treadmill's compact, foldable design and built-in transport wheels make it easy to move and store. Fold the handlebars down and use the wheels to roll it to a suitable storage location, such as under a bed or against a wall.

Image: The treadmill being folded and stored under furniture, demonstrating its space-saving design and transport wheels.
6. Troubleshooting
If you encounter issues with your treadmill, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Treadmill does not power on. | Power cord not connected, power switch off, circuit breaker tripped. | Check power cord connection, ensure power switch is ON, reset circuit breaker if necessary. |
| Treadmill stops unexpectedly. | Safety key dislodged. | Ensure safety key is securely in place. |
| Running belt slips or hesitates. | Belt requires lubrication or adjustment. | Lubricate the running belt as per maintenance instructions. Adjust belt tension if needed (refer to specific instructions or contact support). |
| Unusual noise during operation. | Loose parts, motor issue, belt friction. | Inspect for loose screws and tighten. Lubricate belt. If noise persists, discontinue use and contact customer support. |
If the problem persists after attempting these solutions, please contact customer support.
7. Product Specifications
| Feature | Detail |
|---|---|
| Model Number | JF-H-40DC |
| Motor Horsepower | 2.25 HP |
| Speed Range | 0.6-8.7 MPH (1-14 Km/h) |
| Walking Mode Speed | 0.6-2.5 MPH (1-4 Km/h) |
| Running Mode Speed | 2.5-8.7 MPH (4-14 Km/h) |
| Running Belt Dimensions | 40 inches x 16 inches |
| Max Weight Capacity | 180 KG (380 LBS) |
| Display Type | LED Digital Monitor |
| Number of Programs | 12 Preset Programs |
| Connectivity | Bluetooth (for FitShow App) |
| Material | Alloy Steel Frame |
| Product Dimensions (Unfolded) | 63.5 x 38.1 x 50.8 cm (approximate) |
| Item Weight | 33.1 kg |

Image: An illustration of the treadmill's powerful yet quiet 2.25HP motor, designed for efficient and discreet operation.
8. Warranty and Customer Support
FLYLINKTECH provides a 12-month warranty for this product. If you have any questions, require assistance, or need to claim warranty service, please contact our customer support team. We aim to respond to inquiries within 24 hours.
Please have your model number (JF-H-40DC) and purchase information ready when contacting support.





