1. Important Safety Information
Before operating the SubSun SH01-A treadmill, please read and understand all safety instructions. Retain this manual for future reference.
- Ensure the treadmill is placed on a flat, stable surface.
- Keep children and pets away from the treadmill during operation.
- Always attach the safety key clip to your clothing before starting the treadmill. The safety key is designed to stop the machine in an emergency.
- Wear appropriate athletic footwear.
- Do not use the treadmill if you feel dizzy, faint, or experience any pain. Consult a physician.
- This product is designed for indoor use only.
- Only suitable for voltage 110-120V. Ensure your power outlet matches this requirement.
- Maximum user weight capacity: 265 lbs (120 kg).
2. Product Overview
The SubSun SH01-A is a versatile 2-in-1 folding treadmill designed for both walking and light running, suitable for home and office environments. It features a compact, foldable design for easy storage and transport.
Key Features:
- Compact and Foldable Design: Easily folds down to 49.4 x 22.05 x 3.94 inches for storage, with built-in transport wheels.
- Multifunctional Handlebar: Includes control buttons for speed adjustment and a safety key for emergency stops.
- Advanced LED Display: Tracks speed, distance, time, and calories burned.
- Spacious Running Belt: Measures 15.75 x 39.37 inches for a comfortable stride.
- Quiet Motor: Operates with low noise, ideal for shared spaces.
- Manual Incline: Offers a manual incline adjustment for varied workout intensity.
- Shock Absorption System: Features a 6-layer running belt and shock pads for joint protection.

Image: The SubSun 2-in-1 Folding Treadmill shown in its compact, folded-down position, highlighting its dimensions of 49.4 inches length, 22.05 inches width, and 3.94 inches height. This illustrates its space-saving design for storage.

Image: A user walking on the SubSun treadmill with the handlebar raised. The image points out the control buttons on the handlebar for easy operation and the safety key for emergency stops, emphasizing user control and safety features.
3. Setup Instructions
The SubSun SH01-A treadmill requires minimal assembly. Follow these steps to prepare your treadmill for use:
- Unpack: Carefully remove the treadmill from its packaging.
- Placement: Place the treadmill on a firm, level surface, ensuring adequate space around it for safe operation.
- Unfold (if applicable): If the handlebar is folded down, gently lift it into the upright position until it locks securely.
- Connect Power: Plug the power cord into a grounded 110-120V electrical outlet.
- Attach Safety Key: Connect the safety key to the designated slot on the console. The treadmill will not operate without the safety key in place.

Image: A user standing on the SubSun treadmill with the handlebar in the upright position, indicating the treadmill is set up and ready for a workout. This shows the treadmill in its full operational configuration.
4. Operating Instructions
Familiarize yourself with the treadmill's controls and modes of operation.
4.1 Starting a Workout
- Ensure the safety key is properly attached to both the treadmill and your clothing.
- Step onto the treadmill belt.
- Press the 'Start' button on the console or remote control. The treadmill will begin at a low speed.
- Adjust the speed using the '+' and '-' buttons on the handlebar or remote control.
4.2 Workout Modes and Speed Ranges
The treadmill supports various activity levels:
- Working Mode: 0.6 - 2 MPH (for light activity, e.g., while working at a standing desk).
- Walking Mode: 2 - 4 MPH (for brisk walking).
- Running Mode: 4 - 7.6 MPH (for jogging or light running).

Image: This graphic illustrates the three primary usage modes of the treadmill: Working Mode (0.6-2 mph), Walking Mode (2-4 mph), and Running Mode (4-7.6 mph), showing individuals performing each activity on the treadmill.
4.3 Manual Incline Adjustment
The treadmill features a manual incline adjustment to increase workout intensity. Refer to the base of the treadmill for the incline mechanism. Adjust the incline before starting your workout.

Image: A man running on the treadmill, which is shown with a manual incline of 2.2 degrees. This demonstrates the treadmill's capability to simulate an uphill walk or run for increased calorie burn.
4.4 Using the Display and Tablet Mount
The digital LED display shows real-time data including speed, distance, time, and calories burned. Use the integrated tablet or phone mount to hold your device for entertainment or work during your exercise.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your treadmill.
- Cleaning: Wipe down the treadmill with a damp cloth after each use to remove sweat and dust. Do not use abrasive cleaners.
- Belt Lubrication: Periodically lubricate the running belt according to the instructions provided with your lubricant. This typically involves applying silicone lubricant under the belt.
- Belt Adjustment: If the running belt starts to slip or move off-center, refer to the detailed instructions in the full user manual for adjustment procedures.
- Inspection: Regularly check all bolts and nuts for tightness. Inspect the power cord for any damage.
6. Troubleshooting
If you encounter issues with your treadmill, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Treadmill does not start | Safety key not engaged; Power cord loose; Power switch off | Ensure safety key is fully inserted; Check power cord connection; Turn on power switch. |
| Running belt slips | Belt too loose; Belt needs lubrication | Adjust belt tension (refer to full manual); Lubricate the running belt. |
| Unusual noise during operation | Loose components; Belt misalignment | Check and tighten all visible bolts; Adjust belt alignment (refer to full manual). |
| Display not working | Loose connection; Power issue | Check all cable connections; Ensure power supply is stable. |
If the problem persists after attempting these solutions, please contact customer support.