1. Introduction
Thank you for choosing the Yaheetech High Back Executive Office Chair. This manual provides essential information for the safe and efficient use of your new chair. Please read these instructions carefully before assembly and retain them for future reference.
Figure 1.1: The Yaheetech High Back Executive Office Chair, showcasing its black faux leather upholstery, high backrest, padded armrests, and five-star metal base with casters.
2. Safety Information
Please observe the following safety guidelines to prevent injury or damage:
- Keep out of reach of children.
- Avoid contact with skin and eyes.
- If ingested, seek medical help immediately.
- Ensure all screws and bolts are tightened securely before use.
- Do not stand on the chair.
- Do not exceed the maximum weight recommendation of 300 pounds (136 kg).
3. Parts List
Before assembly, verify that all components are present and undamaged:
- Backrest
- Seat Cushion
- Armrests (2)
- Gas Lift Cylinder
- Star Base
- Casters (5)
- Mechanism Plate
- Hardware (screws, washers, Allen wrench)
4. Assembly Instructions
Follow these steps to assemble your Yaheetech Executive Office Chair:
- Insert the five casters into the holes at the end of each leg of the star base. Push firmly until they click into place.
- Place the gas lift cylinder into the center hole of the star base.
- Attach the mechanism plate to the underside of the seat cushion using the provided screws. Ensure the front of the mechanism plate faces the front of the seat.
- Attach the armrests to the seat cushion using the designated screws. Do not overtighten initially.
- Attach the backrest to the seat cushion and armrests. Secure all connections with screws. Once all screws are in place, tighten them completely.
- Carefully place the assembled seat and backrest onto the gas lift cylinder.
Figure 4.1: A visual guide detailing the six steps for assembling the Yaheetech Office Chair, showing the base, gas lift, seat, backrest, and armrests being put together.
5. Operating Instructions
Your executive office chair is designed with several adjustable features for personalized comfort:
- Seat Height Adjustment: Locate the lever on the right side beneath the seat. To raise the seat, lift the lever while taking your weight off the chair. To lower the seat, lift the lever while remaining seated. The seat height can be adjusted between 19 and 23 inches.
- Rocking Function: The chair features a rocking function for relaxation. To activate or deactivate, refer to the control knob or lever located beneath the seat.
- 360-Degree Swivel: The chair is equipped with a smooth 360-degree swivel function, allowing for easy rotation and access to your workspace.
- Ergonomic Backrest: The S-shaped high backrest is designed to conform to the natural curvature of your back and lumbar region, providing support and reducing fatigue during long periods of sitting.
Figure 5.1: An image highlighting the ergonomic design of the chair, demonstrating its 360-degree swivel, 4-inch height adjustment, and tilt function.
Figure 5.2: A close-up view of the chair's backrest, pointing out its features for neck support, excellent back support, and proper lumbar support, designed to reduce back fatigue.
6. Maintenance
Proper care will extend the life and appearance of your chair:
- Cleaning: The faux leather upholstery is water-resistant and easy to clean. Wipe clean with a damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Inspection: Periodically check all screws and bolts to ensure they remain tight. Retighten as necessary to maintain stability and prevent squeaking.
- Casters: Keep casters free of debris (hair, dust) to ensure smooth rolling.
Figure 6.1: A detailed image showing water droplets on the chair's PU leather surface, illustrating its water-resistant and easy-to-clean properties.
7. Troubleshooting
If you encounter any issues with your chair, refer to the following common solutions:
- Chair Squeaks: Check and tighten all assembly screws. Lubricate moving parts if necessary.
- Height Adjustment Not Working: Ensure the gas lift lever is fully engaged. If the issue persists, the gas lift cylinder may need replacement.
- Chair Does Not Roll Smoothly: Inspect casters for trapped debris (e.g., hair, carpet fibers) and clean them. Ensure the chair is used on an appropriate surface.
- Chair Feels Unstable: Verify that all screws are securely tightened and the base is properly assembled. Do not exceed the maximum weight capacity.
8. Specifications
Key specifications for the Yaheetech High Back Executive Office Chair (Model 613890):
Figure 8.1: A technical diagram illustrating the key dimensions of the Yaheetech Executive Office Chair.
| Feature | Detail |
|---|---|
| Brand | Yaheetech |
| Model Name | 613890 |
| Color | Black |
| Product Dimensions | 28"D x 26.5"W x 46"H |
| Overall Size | 28'' L × 26.5'' W× 42-46'' H |
| Seat Height | 19-23 inches (adjustable) |
| Seat Depth | 19.9 inches |
| Seat Length | 20 inches |
| Back Style | Solid High Back |
| Maximum Weight Recommendation | 300 Pounds (136 kg) |
| Material | Faux Leather, Foam Fill |
| Special Features | Adjustable Height, Adjustable Lumbar, Arm Rest, Rolling, Upholstered Leather, Tilting |
| Item Weight | 31.4 pounds |
9. Warranty Information
For specific warranty details regarding your Yaheetech High Back Executive Office Chair, please refer to the warranty card included with your purchase or contact the retailer directly. Warranty terms typically cover manufacturing defects for a specified period from the date of purchase.
10. Customer Support
If you have any questions, require assistance with assembly, or need to report a missing or damaged part, please contact Yaheetech customer support through the retailer where the product was purchased. Please have your model number (613890) and purchase information ready when contacting support.
