1. Important Safety Information
Please read all instructions carefully before assembly and use. Keep this manual for future reference.
- Ensure all parts are present and undamaged before assembly. Do not use if any parts are missing or damaged.
- Assemble the chair on a soft, clean surface to prevent scratches.
- Do not overtighten screws during assembly.
- Do not stand on the chair. Use only for sitting.
- Do not exceed the maximum load capacity of 136 kg (300 lbs).
- Keep children away from moving parts during operation.
- Regularly check all bolts and screws to ensure they are tight.
2. Setup and Assembly
The Yaheetech YAexj20001 office chair requires assembly. An accessory set with all necessary tools and hardware is included.
2.1 Unpacking
Carefully remove all components from the packaging. Lay them out on a clean, soft surface to identify each part.
2.2 Component Identification
Refer to the diagram below to identify all parts before beginning assembly.
Image: Exploded view showing all individual components of the Yaheetech office chair, including the base, casters, gas lift, seat, backrest, and armrests.
2.3 Assembly Steps
Follow the step-by-step instructions provided in the included accessory set. Typically, assembly involves:
- Attaching the casters to the chair base.
- Inserting the gas lift into the chair base.
- Attaching the armrests to the seat.
- Attaching the backrest to the seat and armrests.
- Mounting the assembled seat and backrest onto the gas lift.
3. Operating Instructions
The Yaheetech YAexj20001 office chair offers several adjustable features for personalized comfort.
3.1 Seat Height Adjustment
To adjust the seat height, locate the lever on the right side, beneath the seat. While seated, pull the lever up to lower the seat. To raise the seat, stand up and pull the lever up. Release the lever at the desired height to lock it in place. The seat height can be adjusted between 48 cm and 58 cm.
3.2 Rocking Function
The chair features a rocking function for relaxation. To activate the rocking function, pull the lever on the left side, beneath the seat, outwards. To lock the chair in an upright position, push the lever inwards. The rocking tension can be adjusted by turning the round knob located at the front, under the seat.
Image: Illustration demonstrating the chair's rocking function, showing the range of motion from 90 to 125 degrees, along with the tilt lock lever and tension adjustment knob.
3.3 Ergonomic Backrest and Padded Seat
The chair is designed with an S-shaped high back to conform to the natural curvature of the spine, providing support for the upper back, neck, and lumbar region. The seat is generously padded with high-density foam for comfort during extended use.
Image: Diagram illustrating the ergonomic design of the chair's backrest, highlighting support for the neck, back, and lumbar area.
Image: Close-up view of the chair's seat and armrests, detailing the high-density foam padding and breathable faux leather for ultimate comfort.
4. Care and Maintenance
Proper care will extend the life and appearance of your Yaheetech office chair.
- Cleaning: The faux leather upholstery is water and stain resistant. Wipe clean with a soft, damp cloth. For stubborn stains, use a mild soap solution and wipe dry immediately. Avoid harsh chemicals or abrasive cleaners.
- Inspection: Periodically check all screws and bolts to ensure they are tight. Retighten if necessary.
- Moving: When moving the chair, lift it rather than dragging it to prevent damage to the casters or base.
- Environment: Avoid prolonged exposure to direct sunlight or extreme temperatures, which can damage the faux leather.
5. Troubleshooting
If you encounter issues with your chair, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair is unstable or wobbly. | Loose screws or improper assembly. | Check and tighten all screws, especially those connecting the seat to the mechanism and the armrests. Ensure the gas lift is fully inserted into the base. |
| Seat height adjustment not working. | Gas lift malfunction or lever not engaged. | Ensure the lever is fully pulled up. If the issue persists, the gas lift may need replacement. Contact customer support. |
| Chair makes squeaking noises. | Loose connections or friction between parts. | Tighten all screws. Apply a small amount of silicone lubricant to moving parts or connection points if necessary. |
| Casters not rolling smoothly. | Debris in casters or damaged casters. | Clean any hair or debris from the caster wheels. If damaged, casters may need replacement. |
6. Specifications
Detailed technical specifications for the Yaheetech YAexj20001 office chair:
- Model: YAexj20001
- Materials: PU leather, Foam, Metal, Nylon, Plywood, PP
- Color: White
- Overall Dimensions: 69 cm L × 71 cm W × 106-116 cm H (27.17 x 27.17 x 45.67 inches)
- Seat Height: 48-58 cm (adjustable)
- Seat Dimensions: 51 cm L x 50.5 cm D (20 x 19.88 inches)
- Armrest Height (from ground): 66.5-76.5 cm
- Maximum Load Capacity: 136 kg (300 lbs)
- Net Weight: 14.1 kg (31.4 lbs)
- Frame Material: Metal
- Gas Mechanism: SGS certified heavy-duty gas lift
Image: Detailed diagram illustrating the dimensions of the Yaheetech office chair, including overall height, seat height, seat width, seat depth, and armrest height, along with the maximum load capacity of 136 kg.
Image: Exploded view highlighting key features such as water-repellent faux leather, padded headrest, padded armrests, thick seat cushion, smooth-rolling casters, and solid gas spring.
7. Warranty and Support
For warranty information or customer support, please refer to the purchase documentation or contact Yaheetech directly through their official website or the retailer where the product was purchased.
Yaheetech Official Website: Visit Yaheetech Store on Amazon
