1. Introduction
Thank you for choosing the Yaheetech Red Ergonomic Mesh Office Chair. This manual provides essential information for the safe assembly, operation, and maintenance of your new office chair. Please read these instructions thoroughly before assembly and retain them for future reference.
Image: The Yaheetech Red Ergonomic Mesh Office Chair.
2. Important Safety Information
- Do not exceed the maximum weight capacity of 300 lbs (136 kg).
- Adjust seat height as per the recommended range to ensure proper posture.
- Avoid standing on the chair.
- Ensure all screws and bolts are securely tightened before use. Periodically check and re-tighten as necessary.
- Keep children away from the assembly area. Small parts may pose a choking hazard.
3. Package Contents
Verify that all components are present before beginning assembly:
- 1 x Office Chair (disassembled)
- 1 x Illustrated Installation Manual
- All necessary hardware and tools (screws, bolts, Allen wrench)
4. Assembly Instructions
Assembly is straightforward and typically takes less than 30 minutes. Follow the steps below and refer to the visual guide and video for assistance.
Visual Assembly Guide
Image: Step-by-step visual guide for chair assembly.
Step-by-Step Process
- Attach Casters to Star Base: Insert the five rolling casters into the holes at the ends of the star base. Push firmly until they click into place.
- Insert Gas Lift: Place the gas lift cylinder into the center hole of the star base.
- Assemble Backrest and Armrests: Attach the armrests to the backrest using the provided screws. Do not fully tighten the screws until all components are aligned.
- Attach Seat Plate to Seat Cushion: Secure the metal seat plate mechanism to the underside of the seat cushion using the designated screws. Ensure the front of the seat plate faces the front of the seat cushion.
- Connect Backrest/Armrests to Seat: Align the assembled backrest and armrests with the seat cushion and attach them using the remaining screws. Once all screws are in place, tighten them securely.
- Connect Seat Assembly to Gas Lift: Carefully place the assembled seat onto the gas lift cylinder, ensuring it is centered and stable.
Assembly Video
Video: Official Yaheetech assembly guide for the office chair.
5. Operating Instructions
Your Yaheetech office chair is designed with several adjustable features to enhance your comfort and support.
Image: Overview of chair functions: height adjustment, rocking, and swivel.
Adjustable Height
To adjust the seat height, locate the lever under the seat on the right side. While seated, pull the lever upwards to lower the seat. To raise the seat, stand up slightly and pull the lever upwards. Release the lever at your desired height.
Rocking Motion (Tilt Function)
The chair features a rocking function for relaxation. Pull the lever under the seat outwards to enable the rocking motion (90-120 degrees). Push the lever inwards to lock the chair in an upright position. The tension of the rocking motion can be adjusted by turning the round knob located under the seat.
Image: Visual representation of the chair's rocking, swivel, and height adjustment features.
360-Degree Swivel and Rolling
The chair is equipped with a stable star base and five 360-degree swivel wheels, allowing for fluent and quick movement across your workspace without needing to stand up.
Lumbar Support
The curved backrest is designed to align with the natural curve of your spine, providing consistent lumbar support to your lower back and promoting proper posture.
Image: Detail of the breathable mesh backrest and integrated lumbar support.
User-Friendly Armrests
The ergonomic armrests offer continuous support for your arms, contributing to overall comfort during extended periods of sitting.
6. Maintenance
To ensure the longevity and appearance of your chair, follow these simple care instructions:
- Cleaning: Wipe clean with a damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Inspection: Periodically check all bolts and screws to ensure they are tight. Re-tighten if necessary.
- Casters: Keep casters free of debris (hair, dust) to ensure smooth rolling.
7. Troubleshooting
If you encounter any issues with your chair, please refer to the following common troubleshooting tips:
- Chair is wobbly: Ensure all assembly screws are fully tightened. Check that the gas lift is properly seated in the base.
- Casters not rolling smoothly: Inspect casters for trapped debris (hair, lint) and clean them. Ensure they are fully inserted into the star base.
- Height adjustment not working: Check if the gas lift lever is fully engaged. Ensure the gas lift cylinder is correctly installed.
- Backrest not tilting: Verify that the tilt lock lever is disengaged (pulled outwards). Adjust the tilt tension knob if the chair is too stiff or too loose.
If problems persist after attempting these solutions, please contact customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Yaheetech |
| Model Name | Office Chair (WP123) |
| Color | Red |
| Product Dimensions | 24"D x 23.6"W x 38.2"H |
| Maximum Weight Recommendation | 300 Pounds (136 kg) |
| Material | Polyester Mesh, Nylon Star Base, Steel Gas Cylinder, Foam |
| Special Features | Adjustable Height, Ergonomic, Rolling, Lumbar Support, Rocking Function |
| Seat Height | 17.7 Inches (Adjustable) |
| Seat Depth | 20.7 Inches |
| Item Weight | 19.4 Pounds (8.8 kg) |
9. Warranty and Support
Yaheetech products are manufactured to high-quality standards. For specific warranty details regarding your purchase, please refer to the documentation included with your product or contact your retailer. If you require assistance, have questions, or need to report an issue, please contact Yaheetech customer support through the retailer's platform or the official Yaheetech website.
