BASETBL Office Chair

Introduction

Thank you for choosing the BASETBL Office Chair. This manual provides essential information for the safe and efficient use of your new chair. Please read it thoroughly before assembly and operation, and keep it for future reference.

Image: The BASETBL Office Chair, featuring a light grey fabric seat and backrest with button tufting, white armrests, and a white five-star base with black casters.

Safety Warnings

To ensure your safety and prevent damage to the product, please adhere to the following warnings:

• Maximum Load Capacity: The chair has a maximum load capacity of 150 kg (330 lbs). Do not exceed this weight limit.
• Stability Check: Before sitting, ensure the 5-star base is firmly and stably positioned on the floor.
• Height and Tilt Adjustment: Adjust the chair's height and tilt slowly and carefully to find a safe and comfortable sitting position. Avoid rapid or sudden movements.
• Avoid Falls: Do not stand on the chair or use it as a step stool. Avoid sudden shifts in weight that could lead to tipping.
• Regular Inspection: Periodically check all screws and connections to ensure they are tight. Retighten if necessary.

Components List

Before assembly, please verify that all components are present and undamaged. The package should include:

• Backrest
• Seat Cushion
• Armrests (2)
• Gas Lift Cylinder
• 5-Star Base
• Casters (5)
• Mechanism Plate
• Hardware (screws, washers, hex key)

Setup and Assembly

The BASETBL Office Chair is designed for easy assembly, typically taking around 15 minutes. All necessary tools, including hex keys and hexagonal screws, are provided.

1. Attach Casters to Base: Insert the five casters into the holes at the end of each leg of the 5-star base until they click securely into place.
2. Insert Gas Lift: Place the gas lift cylinder into the center hole of the 5-star base.
3. Attach Mechanism Plate to Seat: Secure 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.
4. Attach Armrests: When installing the armrests, first attach one side of the screw holes, but do not tighten them too firmly to avoid misalignment. Then, attach the other side. Finally, tighten both sides securely.
5. Connect Backrest to Seat: Attach the backrest to the seat assembly using the designated screws.
6. Place Seat Assembly onto Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is centered and stable.

For detailed visual instructions, please refer to the assembly diagram included in your package.

Operating Instructions

Your BASETBL Office Chair offers adjustable features for optimal comfort and ergonomic support.

Height Adjustment

To adjust the chair's height (up to 10 cm range), locate the lever on the right side beneath the seat. Pull the lever upwards while seated to lower the chair, or pull it upwards while standing to raise the chair. Release the lever at your desired height. The SGS certified 3-level gas lift ensures smooth and stable height adjustments.

Tilt Function

The chair features a tilt function allowing recline from 90° to 110°. To activate or deactivate the tilt, use the lever on the left side beneath the seat. Push the lever inwards to lock the backrest in an upright position, or pull it outwards to allow the backrest to recline. Adjust your body weight to find your preferred recline angle.

Comfort Features

The chair's backrest and seat cushion are equipped with premium double-layer high-density foam padding, providing excellent support and a sofa-like comfort. The technologically advanced fabric ensures superior breathability and abrasion resistance, keeping you cool and comfortable during long periods of sitting.

Maintenance

Proper care will extend the life and appearance of your BASETBL Office Chair.

• Cleaning: For general cleaning, use a soft, damp cloth. For spills or stains, perform spot cleaning immediately. Avoid harsh chemicals or abrasive cleaners that may damage the fabric or finish.
• Fabric Care: The technological fabric is easy to clean and stain-resistant. For deeper cleaning, consult a professional upholstery cleaner.
• Caster Maintenance: Periodically check the casters for accumulated dust or hair and clean them to ensure smooth movement.
• Hardware Check: Regularly inspect all screws and bolts to ensure they remain tight. Retighten as needed to maintain stability and safety.

Troubleshooting

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

• Chair Wobbles/Unstable:
  • Ensure all assembly screws, especially those connecting the seat to the mechanism and the backrest, are fully tightened.
  • Check that the gas lift is properly seated in the base.
  • Verify that the casters are fully inserted into the base.
• Height Adjustment Not Working:
  • Ensure the height adjustment lever is fully engaged.
  • Check for any obstructions around the gas lift cylinder.
  • If the issue persists, the gas lift may need replacement. Contact customer support.
• Chair Squeaks:
  • Tighten all screws. Loose connections are a common cause of squeaking.
  • Apply a small amount of silicone lubricant to moving parts, such as the tilt mechanism or where the gas lift meets the base, if necessary.

If these steps do not resolve the issue, please contact BASETBL customer support for further assistance.

Specifications

Warranty and Support

BASETBL is committed to providing high-quality ergonomic office chairs and excellent customer service.

• Warranty: Your BASETBL Office Chair comes with a superior 3-year warranty, exceeding industry standards. This warranty covers manufacturing defects and material flaws under normal use.
• Customer Support: For any questions, concerns, or assistance with your product, please contact BASETBL customer support. We strive to respond to all inquiries within 24 hours.
• Contact Information: Please refer to the contact details provided on the BASETBL official website or your purchase documentation.

Image: BASETBL's design achievements, including multiple international design awards such as the Red Dot Award and iF Design Award from 2018.