Introduction
This manual provides comprehensive instructions for the assembly, operation, and maintenance of your Yaheetech Ergonomic Swivel Office Computer Desk Chair. Designed for optimal comfort and support, this chair features an S-shaped ergonomic backrest, high-density foam padding, and smooth 360° mobility. Please read this manual thoroughly before assembly and use to ensure proper function and longevity of your product.
Figure 1: Front view of the Yaheetech Ergonomic Swivel Office Chair.
Setup and Assembly
For detailed step-by-step instructions, please refer to the official Installation Manual PDF: Download Installation Manual (PDF).
Below is a summary of the assembly process, complemented by an official installation video.
Assembly Overview:
The assembly involves attaching the casters to the base, inserting the gas lift, securing the armrests to the backrest, attaching the seat plate to the seat cushion, and finally connecting the assembled top to the gas lift. Ensure all screws are tightened securely for stability.
Figure 2: Product installation accessories.
Official Installation Video:
Video 1: Official Yaheetech Office Desk Chair Installation Guide. This video demonstrates the complete assembly process for the chair.
Operating Instructions
Your Yaheetech office chair is designed with several adjustable features to enhance your comfort and productivity.
Adjustable Seat Height:
To adjust the seat height, locate the lever on the right side beneath the seat. Pull the lever upwards while applying or releasing your body weight to move the seat up or down. Release the lever to lock the height in place.
Figure 3: Seat height adjustment lever.
Tilt Tension and Rocking Motion:
The chair features a center-tilt tension mechanism. To adjust the rocking motion, turn the round knob located beneath the seat. Turn clockwise to tighten the tension (less rocking) and counter-clockwise to loosen it (more rocking). The backrest can recline between 90° and 105°.
Figure 4: Illustration of rocking motion and tilt tension knob.
Lumbar Support Adjustment:
The lumbar support can be adjusted within a 5cm range to provide customized comfort and support to your lower back. Gently push or pull the lumbar support mechanism on the backrest to find your preferred position.
Figure 5: Moveable lumbar support for back comfort.
360° Mobility:
The chair is equipped with durable nylon swivel casters on a wide star base, allowing for smooth and effortless 360° rotation and movement across various floor surfaces without causing scratches.
Figure 6: 360° mobility provided by the chair's casters.
Product Overview Video:
Video 2: Yaheetech Mesh Office Chairs Overview. This video highlights key features and benefits of the chair, including breathable materials, upgraded comfort, durability, and adjustability.
Maintenance
To ensure the longevity and optimal performance of your Yaheetech office chair, follow these simple maintenance guidelines:
- Cleaning: Wipe clean with a damp cloth. Avoid harsh chemicals or abrasive cleaners that may damage the mesh or fabric.
- Regular Inspection: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary to maintain stability.
- Caster Care: Keep the casters free of hair and debris to ensure smooth rolling.
- Weight Capacity: Do not exceed the maximum weight capacity of 300 pounds to prevent damage and ensure safety.
Troubleshooting
If you encounter any issues with your Yaheetech office chair, please refer to the common problems and solutions below:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair wobbles or feels unstable | Loose screws or improper assembly. | Ensure all screws, especially those connecting the seat plate to the backrest and the base, are securely tightened. Refer to the assembly instructions. |
| Difficulty adjusting seat height | Gas lift issue or lever malfunction. | Check if the height adjustment lever is fully engaged. If the issue persists, the gas lift may need replacement. |
| Casters not rolling smoothly | Debris (hair, dust) caught in casters. | Turn the chair over and carefully remove any debris from the caster wheels. Lubricate if necessary. |
| Backrest does not recline or adjust properly | Tilt tension knob too tight or mechanism obstruction. | Loosen the tilt tension knob. Check for any obstructions around the reclining mechanism. |
Product Specifications
- Brand: Yaheetech
- Model Number: 25091546087593
- Color: Black
- Style: Modern
- Product Dimensions: 23.5"D x 23"W x 39.5"H
- Item Weight: 18.9 pounds
- Maximum Weight Recommendation: 300 Pounds
- Material: Mesh back, foam-padded seat, steel gas spring, nylon base & wheels
- Special Features: Adjustable Height, Arm Rest, Ergonomic, Rolling, Tilting
- Back Style: Solid Back (Mesh)
- Seat Height: 39.5 Inches (Max)
- Included Components: User Manual, Installation Tools
- Country of Origin: China
Warranty and Support
Yaheetech is committed to providing high-quality products and customer satisfaction. For any inquiries or support needs, please contact Yaheetech customer service.
- Return Policy: This product is eligible for a 30-day return for refund or replacement, as per standard policy.
- Brand Store: Explore more products and information from Yaheetech at their official Amazon store: Yaheetech Amazon Store.
