VINGLI Armless Home Office Chair Instruction Manual

1. Introduction

Thank you for choosing the VINGLI Armless Home Office Chair. This manual provides essential information for the safe assembly, operation, and maintenance of your new chair. Please read these instructions carefully before use and retain them for future reference.

2. Safety Information

• Always use the adjustable height and tilt mechanism carefully to avoid injury.
• Ensure that the user's weight does not exceed the chair's maximum weight capacity of 330 lbs (150 kg) to maintain stability and prevent damage.
• Keep children away from the chair during assembly and adjustment.
• Do not stand on the chair.
• Regularly check all bolts and screws to ensure they are tightened.

3. Package Contents

Before assembly, verify that all components are present and undamaged. The package includes:

• Chair Backrest and Seat Assembly
• Chair Base (5-star base)
• Gas Lift Cylinder
• Casters (5 pieces)
• Assembly Hardware (screws, washers, etc.)
• Assembly Tools (e.g., Allen wrench)
• Instruction Manual

Figure 3.1: Product Dimensions and Key Components. This image illustrates the overall dimensions of the VINGLI office chair, including seat height, backrest height, and base width. It also highlights the 330 lbs weight capacity and components such as double support rods, silent casters, and the gas lift cylinder.

4. Setup and Assembly

Assembly is straightforward and typically takes a few minutes. Follow these general steps:

1. Attach Casters: Insert the five casters into the holes at the end of each leg of the chair base until they click securely into place.
2. Insert Gas Lift Cylinder: Place the gas lift cylinder into the center hole of the chair base.
3. Attach Seat and Backrest: Carefully align the mechanism attached to the underside of the seat with the top of the gas lift cylinder. Press down firmly to secure.
4. Secure Backrest: Attach the backrest to the seat assembly using the provided screws and tools. Ensure all screws are tightened securely.

Refer to the included step-by-step instructions and diagrams for detailed guidance.

Figure 4.1: Durable and High-Performance Details. This image showcases the durable and high-performance details of the chair, such as the double-supported backrest, the robust gas lift cylinder, and the heavy-duty base, emphasizing its ability to support up to 330 lbs.

5. Operating Instructions

The VINGLI office chair offers versatile adjustments for personalized comfort:

5.1. Height Adjustment

To adjust the seat height:

• To raise: While seated, lift the height adjustment lever (typically on the right side) and slightly lift your weight off the seat. The seat will rise. Release the lever at the desired height.
• To lower: While seated, lift the height adjustment lever. The seat will lower under your weight. Release the lever at the desired height.

The chair's height can be adjusted from approximately 18.5 inches to 33.5 inches.

5.2. Tilting Function

The chair features an adjustable tilt mechanism (90°–120°) and tilting tension control:

• To activate/deactivate tilt: Pull the lever (often the same as the height adjustment lever, or a separate one) outwards to allow the chair to tilt, and push it inwards to lock the chair in an upright position.
• To adjust tilting tension: Rotate the round knob located underneath the seat, usually at the front. Turn clockwise to increase tension (making it harder to tilt) or counter-clockwise to decrease tension (making it easier to tilt).

5.3. Swivel Function

The chair is equipped with 360° silent casters, allowing for smooth and noiseless rotation and movement across various floor types.

Figure 5.1: Flexible Adjustment for Every Work Style. This image displays the chair's flexible adjustment mechanisms, including the lever for locking/freeing the tilt, adjusting tilting tension, and controlling the seat height. It shows the 90°-120° tilt range and 360° swivel.

Figure 5.2: 360° Silent Glide. This image demonstrates the universal floor adaptability of the chair's 360° silent glide casters, indicating their suitability for use on carpet, wood, tile, and cement floors without causing scuffs or noise.

6. Maintenance

Proper maintenance ensures the longevity and appearance of your VINGLI office chair:

• Cleaning: The chair features waterproof and stain-resistant leather upholstery. For general cleaning, wipe with a soft, damp cloth. For tougher stains, use a mild soap solution and wipe dry immediately. Avoid harsh chemicals or abrasive cleaners.
• Hardware Check: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary to prevent wobbling and ensure stability.
• Caster Care: Keep casters free of hair, dust, and debris to ensure smooth movement. Clean them regularly with a damp cloth.
• Wood Care: The walnut-finished wood components can be wiped with a dry or slightly damp cloth. Avoid excessive moisture.

Figure 6.1: Product Details. This image provides close-up details of the chair's construction, including the double-supported curved back, the refined walnut wood grain, the soft and comfortable seat cushioning, and the waterproof and stain-resistant properties of the upholstery.

7. Troubleshooting

If you encounter any issues with your VINGLI office chair, refer to the following common solutions:

• Chair is wobbly: Ensure all assembly screws are securely tightened. Check that the casters are fully inserted into the base.
• Chair does not adjust height: Verify that the gas lift cylinder is correctly installed and not damaged. Ensure the height adjustment lever is fully engaged.
• Chair does not tilt or tilts too easily/hard: Check the tilt lock lever to ensure it is in the correct position. Adjust the tilting tension knob underneath the seat.
• Casters are not rolling smoothly: Clean any debris (hair, dust) from the caster wheels. Ensure the casters are properly seated in the base.

If problems persist, please contact customer support.

8. Specifications

9. Warranty Information

Specific warranty details for this product are not provided in the available information. Please refer to your purchase documentation or contact the retailer/manufacturer directly for warranty terms and conditions.

10. Customer Support

For further assistance, questions, or to report any issues, please contact VINGLI customer support through the retailer's platform or the official VINGLI website. Have your model number (SF20250915B0FJFH7G3N) and purchase date ready when contacting support.