COMHOMA GT205-2025 Ergonomic Office Chair User Manual

1. Safety Information

Always ensure the chair is assembled correctly and that all components are secure before use. Do not exceed the weight limit of 181 kilograms (400 lbs). Follow all safety instructions provided with the product.

2. Product Overview

The COMHOMA GT205-2025 office chair is designed for comfort and support during extended periods of sitting. It features an ergonomic design with specialized lumbar support and versatile adjustments.

Key Features:

• Ergonomic Full-Body Design: Backrest with 3D wrapping lumbar support, dual-layered high-density foam, and high-loft fiber for neck, shoulder, and back conformity. Includes an oversized adjustable lumbar pillow.
• Multifunctional Comfortable Seating: Spacious seat with pocket spring lumbar support for enhanced comfort and breathability. Features an adjustable footrest for switching between work and relaxation.
• Durable and Stable Construction: BIFMA-certified five-star base supporting up to 181 kg (400 lbs). SGS-3 gas lift certified for over 120,000 lift cycles. Metal armrest frame for superior strength.
• Versatile Adjustments: 10cm height adjustment (suitable for users 5'1" to 6'2"). Backrest reclines from 90° to 135°. 360° swivel and smooth-rolling casters.
• FSC-Certified: Chair cushion inner support is made of FSC-Certified wood.

3. Setup and Assembly

The COMHOMA GT205-2025 chair is designed for quick and straightforward assembly. All necessary accessories and detailed instructions are included. Assembly typically takes 15-30 minutes.

Assembly Steps:

1. Unpack Components: Carefully remove all parts from the packaging. Ensure all components listed in the parts list are present.
2. Attach Casters to Base: Flip the chair base upside down. Insert the five casters into the holes at the end of each leg of the base. Push firmly until they click into place.
3. Install Gas Lift: Insert the gas lift cylinder into the center hole of the chair base. Place the three-piece cone cover over the gas lift.
4. Attach Mechanism to Seat: Place the seat cushion upside down on a flat, protected surface. Ensure the "FRONT" label on the mechanism aligns with the front of the seat. Secure the mechanism to the underside of the seat using the provided screws (H screws for the back, I screws for the front) and the Allen key. Do not overtighten initially.
5. Connect Control Cables: Attach the control cables from the mechanism to their respective levers.
6. Attach Armrests: Align the armrests with the pre-drilled holes on the sides of the seat cushion. Use the provided screws (J screws) to attach them. Ensure the armrests are facing the correct direction (pedals). Do not fully tighten the screws yet.
7. Attach Backrest: Align the backrest with the armrests. Insert the backrest into the armrest brackets. Ensure the first screw hole on each side is aligned.
8. Final Tightening: Once all components are loosely assembled, gently slide the backrest up to align all screw holes. Fully tighten all screws on the armrests and backrest.
9. Connect Seat to Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder. Apply downward pressure to secure it.

4. Operating Instructions

4.1 Height Adjustment

To adjust the chair's height, locate the lever on the right side beneath the seat. While seated, pull the lever up to lower the chair. To raise the chair, stand up and pull the lever up. Release the lever at the desired height.

4.2 Recline Function

The backrest can recline from 90° (upright) to 135° (relaxed position). Use the lever on the left side beneath the seat to adjust the recline angle. Push the lever outwards to unlock and recline, then push it inwards to lock the backrest at your preferred angle.

4.3 Footrest Operation

To extend the footrest, pull the handle located beneath the front of the seat outwards. The footrest will slide out. Flip up the padded section for leg support. To retract, push the padded section down and slide the footrest back under the seat.

4.4 Swivel and Casters

The chair features a 360° swivel function for easy rotation. The smooth-rolling casters allow for effortless mobility across various floor surfaces.

5. Maintenance

• Cleaning: For faux leather surfaces, wipe with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners, as these can damage the material.
• Inspection: Periodically check all screws and bolts to ensure they are tight. Retighten if necessary to maintain stability and safety.
• Caster Care: Keep casters free of debris (hair, dust) to ensure smooth rolling.
• Avoid Overloading: Do not exceed the maximum weight recommendation of 181 kg (400 lbs).

6. Troubleshooting

7. Specifications

• Brand: COMHOMA
• Model Name: GT205-2025
• Color: White
• Material: Faux Leather, Foam, Polyurethane
• Product Dimensions (D x W x H): 19.7" x 22" x 45.1"
• Maximum Weight Recommendation: 181 Kilograms (400 lbs)
• Back Style: High Back
• Special Feature: Ergonomic, Footrest, Lumbar Support, Recline
• Reclining Position Count: 3 (90° to 135°)
• Item Weight: 44 pounds
• UPC: 810170304125

8. Warranty and Support

For any concerns or inquiries regarding your COMHOMA GT205-2025 office chair, please contact our professional customer service team. We aim to respond within 24 hours to provide a satisfactory solution.

Specific warranty details are provided with your purchase documentation. Please refer to those documents for comprehensive warranty information.