Introduction
Thank you for choosing the FLYLINKTECH 2-in-1 Foldable Treadmill. This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your new fitness equipment. This versatile treadmill is designed for home use, offering both running and walking modes, app control, and a space-saving foldable design. Please read this manual thoroughly before using the treadmill and keep it for future reference.
1. Setup
1.1 Unpacking and Placement
The FLYLINKTECH treadmill comes ready to use with no assembly required. Simply unpack the unit from its packaging. Place the treadmill on a flat, stable, and level surface. Ensure there is adequate clear space around the treadmill for safe operation, at least 2 meters (6.5 feet) behind and 0.6 meters (2 feet) on each side.
1.2 Unfolding the Treadmill
To transition from walking mode (flat) to running mode (with handles), gently lift the handle assembly until it locks into place. To fold for storage, reverse this process, ensuring the handle is securely lowered.

1.3 Power Connection
Connect the power cord to a grounded electrical outlet. Ensure the power switch on the treadmill is in the 'OFF' position before plugging it in.
2. Operating Instructions
2.1 Power On/Off
To power on, flip the main power switch located near the power cord inlet to the 'ON' position. The LED display will illuminate. To power off, flip the switch back to 'OFF' and unplug the unit when not in use.
2.2 Safety Key
Before starting any exercise, attach the safety key clip to your clothing. Insert the magnetic end of the safety key into the designated slot on the console. The treadmill will not operate without the safety key in place. In case of emergency, pulling the safety key will immediately stop the treadmill.

2.3 Modes of Operation
The treadmill offers two primary modes:
- Running Mode: With the handles upright, the treadmill operates at speeds suitable for running, typically from 2.5 mph (4 km/h) to 8.7 mph (14 km/h).
- Walking Mode: With the handles folded down, the treadmill functions as a walking pad, ideal for under-desk use, with speeds ranging from 0.6 mph (1 km/h) to 2.5 mph (4 km/h).

2.4 Console and Display
The LED digital monitor displays key workout metrics:
- Time: Duration of your workout.
- Speed: Current speed of the running belt.
- Distance: Total distance covered.
- Calories: Estimated calories burned.
2.5 Preset Programs
The treadmill includes 12 preset programs designed to simulate various terrains and workout intensities. Refer to the on-screen prompts or the full instruction manual for details on selecting and using these programs.
2.6 Control Methods
You can control the treadmill using three methods:
- Touch Screen Buttons: Directly on the console for speed adjustments and program selection.
- Remote Control: Use the included remote to adjust speed and start/stop the treadmill.
- APP Control: Connect via Bluetooth to the "Fit Show" app for advanced control, workout data recording, and interactive fitness courses. The app is available on Google Play and the App Store.

2.7 Device Holder
The integrated device holder allows you to securely place your smartphone or tablet on the console, enabling you to enjoy entertainment or follow workout programs while exercising.
3. Maintenance
3.1 Cleaning
Regularly wipe down the treadmill with a damp cloth to remove dust and sweat. Avoid using abrasive cleaners or solvents that could damage the surfaces. Ensure the treadmill is powered off and unplugged before cleaning.
3.2 Running Belt Maintenance
Periodically check the running belt for wear and tear. Ensure the belt is properly centered and tensioned. If the belt feels loose or slips, consult the full instruction manual for adjustment procedures. Lubrication of the running deck may be required after extended use; refer to the full manual for specific instructions and recommended lubricants.

3.3 Storage
Thanks to its foldable design and transport wheels, the treadmill can be easily moved and stored. Fold the treadmill as described in Section 1.2 and roll it to a suitable storage location. Store in a dry, cool place away from direct sunlight and moisture.
4. Troubleshooting
- Treadmill does not start:
- Ensure the power cord is securely plugged into a grounded outlet.
- Check that the main power switch is in the 'ON' position.
- Verify that the safety key is correctly inserted into its slot.
- Check for any tripped circuit breakers in your home.
- Running belt stops or slips:
- The safety key may have been dislodged. Reinsert it.
- The running belt may require tension adjustment or lubrication. Refer to the full manual for detailed instructions.
- Ensure the weight capacity is not exceeded (max 180kg / 380lbs).
- Display not working:
- Check power connection and safety key.
- If the issue persists, power cycle the machine (turn off, unplug, wait 30 seconds, plug in, turn on).
- App connection issues:
- Ensure Bluetooth is enabled on your device.
- Make sure the "Fit Show" app is installed and updated.
- Restart both the treadmill and your mobile device.
For more complex issues, please consult the comprehensive instruction manual or contact customer support.
5. Specifications
| Feature | Specification |
|---|---|
| Brand Name | FLYLINKTECH |
| Model Number | JF-H-40DC |
| Driving Power | Electric |
| Function | Multifunctional |
| Application | Home Use Treadmill |
| Foldable | Yes |
| Type of Sports | Cardio Training |
| Certification | CE |
| Mode | Running & Walking (2-in-1) |
| APP Control | "Fit Show" APP |
| Weight Capacity | 180 kg (380 lbs) |
| Noise Level | <60 dB |
| Speed Range | 0.6 - 8.7 MPH (1 - 14 km/h) |
| Running Area | 16 x 40 inches (40.6 x 101.6 cm) |
| Product Weight | 74 pounds (33.5 kg) |
| Engine Power | 2.25 HP |
| LED Display | Time, Speed, Calories, Distance |
| Target Group | Adult |
| Assembly Required | No |
| Material | Steel |
| Overall Size (Unfolded) | 49.8 x 25.3 x 42.1 inches (126.5 x 64.3 x 106.9 cm) |
| Foldable Size | 51.9 x 25.3 x 4.53 inches (131.8 x 64.3 x 11.5 cm) |
| Number of Programs | 12 |
6. User Tips
- No Assembly Needed: The treadmill arrives ready to use, simply unpack and set it up.
- Adult Use: This treadmill is suitable for adult users.
- Monitor Your Progress: The LED display clearly shows time, speed, calories, and distance, helping you track your workout effectively.
- Smart Workout: Utilize the "Fit Show" app for enhanced control and to record your exercise data.
7. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided with your purchase documentation or contact the seller directly. Keep your proof of purchase for any warranty claims.