1. Safety Information
WARNING: This product can expose you to chemical Di(2-ethylhexyl)phthalate (DEHP) and Lead which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/furniture.
Always ensure all components are securely fastened before use. Do not stand on the chair. Do not use the chair if any parts are damaged or missing.
2. Setup and Assembly
Minimal assembly is required for your Yaheetech Armless Desk Chair. Typically, this involves attaching the casters to the base and securing the seat and backrest components.
2.1 Unpacking and Component Check
Carefully unpack all components from the box. Verify that all parts listed in the packaging contents are present and undamaged.
2.2 Important Pre-Assembly Step: Remove Plastic Cap
Before assembling, locate the pneumatic cylinder (gas lift). There is a black plastic cap on the top of the cylinder that must be removed prior to installation. Failure to remove this cap will prevent the chair's height adjustment mechanism from functioning correctly.

Figure 2.2.1: Removing the protective plastic cap from the pneumatic cylinder.
2.3 Assembly Steps
Follow the visual guide below for step-by-step assembly. The process typically takes around 15 minutes.

Figure 2.3.1: Visual guide for chair assembly.
Video 2.3.1: Detailed instructions on how to install the Modern Tufted Office Chair.
Video 2.3.2: Important reminder to remove the black plastic cap before assembly.
3. Operating Instructions
Your Yaheetech Armless Desk Chair is designed for comfort and flexibility in various settings.
3.1 Adjustable Seat Height
The chair features an adjustable seat height with a range of 4 inches. To adjust the height, locate the lever under the seat. Pull the lever upwards while seated to lower the chair, or pull the lever upwards while standing to raise the chair. Release the lever to lock the height in place.
3.2 Rocking Function and Back Tilt
The chair offers a rocking function and an adjustable back tilt angle (90°-110°). To enable the rocking function, pull out the lever located under the seat. To lock the backrest in an upright position, push the lever inwards. The tension of the rocking function can be adjusted by turning the round knob under the seat.

Figure 3.2.1: Adjustable back tilt and control mechanisms.
3.3 360° Swivel and Rolling Wheels
The chair is equipped with a 360° swivel function, allowing for easy rotation. The five polypropylene casters ensure smooth and effortless movement across hard floor surfaces, providing flexibility to move around your workspace.
Video 3.3.1: Demonstration of the Yaheetech Modern Faux Leather Office Chair's features, including swivel and height adjustment.
4. Maintenance and Care
Proper care will extend the life and appearance of your chair.
4.1 Cleaning Instructions
The chair's faux leather upholstery is water-resistant and easy to maintain. For general cleaning, simply wipe clean with a damp cloth. Avoid using harsh chemicals or abrasive cleaners, as these may damage the material.

Figure 4.1.1: Cleaning the water-resistant faux leather.
4.2 General Maintenance
Regularly check all screws and bolts to ensure they are tight. Re-tighten if necessary. Inspect the casters periodically for any debris that might hinder smooth rolling and clean as needed.
5. Troubleshooting
If you encounter any issues with your chair, please refer to the following common solutions:
- Height Adjustment Not Working: Ensure the black plastic cap on the pneumatic cylinder was removed during assembly. If not, disassemble the chair, remove the cap, and reassemble.
- Chair Does Not Roll Smoothly: Check the casters for any hair, dust, or debris that may be obstructing their movement. Clean the casters thoroughly. Ensure the chair is used on a suitable surface (recommended for hard floors).
- Chair Feels Unstable: Verify that all screws and bolts are securely tightened. Ensure the chair is placed on a flat, even surface.
6. Specifications
Below are the key specifications for your Yaheetech Armless Desk Chair (Model: YT-001274051):

Figure 6.1.1: Chair dimensions.
| Feature | Detail |
|---|---|
| Brand | Yaheetech |
| Model Name | YT-001274051 |
| Color | White |
| Material | Faux Leather, Foam (Fill Material) |
| Product Dimensions | 24.5"D x 21.5"W x 37"H |
| Size | 21.5” W × 24.5” D × (33-37)” H |
| Back Style | Solid Back |
| Special Features | Adjustable Height, Ergonomic, Space Saving |
| Maximum Weight Recommendation | 300 Pounds |
| Style | Armless |
| Arm Style | Armless |
| Surface Recommendation | Hard Floor |
| Furniture Base Movement | Swivel |
| Tilting | Yes |
| Item Weight | 19.62 pounds |
7. Warranty and Support
For warranty information or customer support regarding your Yaheetech Armless Desk Chair, please refer to the documentation included with your purchase or visit the official Yaheetech website. You may also contact Yaheetech customer service directly for assistance with product inquiries, parts, or service.





