1. Introduction
Thank you for choosing the Goplus Twist Stair Stepper. This fitness machine is designed to provide an effective workout for your abdomen, waist, glutes, and legs through a combination of stepping and 360-degree twisting motions. This manual contains important information regarding the assembly, operation, maintenance, and safety of your stepper. Please read it thoroughly before use and retain it for future reference.
2. Safety Information
To ensure safe operation and prevent injury, please observe the following safety precautions:
- Consult a physician before starting any new exercise program.
- Always warm up before exercising and cool down afterward.
- Place the stepper on a flat, stable surface. Ensure adequate space around the equipment.
- Inspect the stepper for any loose or damaged parts before each use. Do not use if damaged.
- Wear appropriate athletic footwear and clothing.
- Maintain proper balance during exercise. Use the handlebar for support.
- Do not exceed the maximum weight capacity of 150 kg (330 lbs).
- Keep children and pets away from the equipment during operation.
- Stop exercising immediately if you feel pain, dizziness, or shortness of breath.
3. Setup and Assembly
The Goplus Twist Stair Stepper requires some assembly. Please follow these general steps:
- Unpack Components: Carefully remove all parts from the packaging. Verify that all components listed in the package contents are present.
- Attach Base Stabilizers: Secure the front and rear base stabilizers to the main frame using the provided hardware. Ensure they are tightened securely for stability.
- Install Handlebar Post: Insert the handlebar post into the designated slot on the main frame.
- Adjust Handlebar Height: Loosen the adjustment knob on the handlebar post. Raise or lower the handlebar to your desired height (5 levels available: 38.5" to 46.5"). Tighten the knob firmly to secure the handlebar in place.
- Check Pedals: Ensure the non-slip pedals are securely attached and move freely.
- Insert Batteries for LCD: The LCD display requires 2 AAA batteries (not included). Open the battery compartment on the display unit and insert the batteries, observing polarity.
- Final Inspection: Before first use, double-check all bolts, nuts, and connections to ensure they are tight and secure.

Figure 3.1: The handlebar can be adjusted to 5 different height levels for user comfort and safety.

Figure 3.2: The handlebar features EVA foam for enhanced grip, and the wide pedals are designed with an anti-slip surface.

Figure 3.3: The stepper features a heavy-duty metal frame and adjustable foot pads for enhanced stability on various floor types.
4. Operating Instructions
The Goplus Twist Stair Stepper offers a dual-action workout combining stepping and twisting motions.
4.1 Basic Operation
- Stepping Motion: Place your feet firmly on the non-slip pedals. Hold the handlebar for balance. Begin by pressing down on one pedal, then the other, mimicking a stair-climbing motion. The hydraulic resistance system ensures smooth and quiet operation.
- Twisting Motion: In addition to the stepping action, the stepper allows for a 360-degree twisting motion. As you step, gently twist your torso and hips from side to side. This engages your core muscles more effectively.

Figure 4.1: The stepper allows for both vertical stepping and a 360-degree twisting motion to engage various muscle groups.

Figure 4.2: Regular use of the stepper can help tone the abdomen, waist, legs, and hips.
4.2 LCD Display Functions
The built-in LCD display helps you track your workout progress:
- Time: Displays the duration of your current workout session.
- Count: Shows the total number of steps taken during your session.
- Power Button: Press to turn on the display. Long press the power button to clear the data when the power is off.

Figure 4.3: The LCD display tracks your exercise time and step count. Requires 2 AAA batteries (not included).
5. Maintenance
Proper maintenance ensures the longevity and safe operation of your Goplus Twist Stair Stepper.
- Cleaning: Wipe down the stepper with a damp cloth after each use to remove sweat and dust. Avoid using abrasive cleaners or solvents.
- Inspection: Regularly check all nuts, bolts, and moving parts for tightness and wear. Tighten any loose fasteners.
- Hydraulic System: The hydraulic rods are designed for long-term use. If you notice any unusual resistance or noise, discontinue use and inspect the system. Do not attempt to disassemble the hydraulic cylinders.
- Storage: Store the stepper in a cool, dry place away from direct sunlight and extreme temperatures.
6. Troubleshooting
If you encounter issues with your stepper, refer to the following common solutions:
- LCD Display Not Working:
- Ensure 2 AAA batteries are correctly installed and not depleted. Replace if necessary.
- Press the power button firmly.
- Unusual Noise During Operation:
- Check all assembly bolts and nuts for tightness.
- Ensure the stepper is on a flat, stable surface and the adjustable foot pads are properly set.
- Inspect for any foreign objects caught in the moving parts.
- Pedals Feel Uneven or Stiff:
- Verify that the hydraulic rods are functioning correctly and are not obstructed.
- Ensure the stepper is level.
If the problem persists after attempting these solutions, please contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | SU-10158DK-HF |
| Brand | Goplus |
| Color | Black |
| Material | Metal, ABS, PP, EVA |
| Overall Dimensions (L x W x H) | 58 cm x 48 cm x 97.5-117.5 cm (23" x 19" x 38.5"-46.5") |
| Handlebar Height Range | 97.5 cm - 117.5 cm (38.5" - 46.5") |
| Pedal Dimensions (L x W) | 28.5 cm x 15.5 cm (11.2" x 6.1") |
| Net Weight | 12 kg (26.5 lbs) |
| Weight Capacity | 150 kg (330 lbs) |
| Display Battery | 2 x AAA batteries (not included) |
| Resistance Type | Hydraulic |
| Country of Origin | China |

Figure 7.1: Detailed dimensions of the Goplus Twist Stair Stepper.

Figure 7.2: The robust hydraulic system provides smooth, quiet, and durable performance.
8. Warranty and Support
The Goplus Twist Stair Stepper comes with a warranty of 90 days after purchasing. This warranty covers manufacturing defects under normal use.
For warranty claims, technical support, or replacement parts, please contact the seller or manufacturer directly through your purchase platform. Please have your model number (SU-10158DK-HF) and proof of purchase ready when contacting support.