FelixKing Model 370 Ergonomic Office Chair User Manual

1. Introduction

This manual provides detailed instructions for the assembly, operation, and maintenance of your FelixKing Model 370 Ergonomic Office Chair. Designed for comfort and durability, this chair features a 500lb capacity, scratch-resistant PU leather, 4D lumbar support, recline function, and an extendable footrest. Please read this manual thoroughly before use to ensure proper setup and safe operation.

2. Safety Information

• Ensure all parts are securely fastened before using the chair.
• Do not stand on the chair.
• Avoid placing heavy objects on the chair's backrest or armrests.
• Keep hands and fingers clear of moving parts during adjustment.
• Do not use the chair if any components are damaged or missing. Contact customer support for replacement parts.
• Maximum weight capacity: 500 lbs (226 kg). Do not exceed this limit.

3. Package Contents

Before assembly, verify that all components are present and undamaged. Refer to the assembly video for visual identification of parts.

• Backrest
• Seat Cushion with Footrest
• Armrests (2)
• Mechanism
• Gas Lift Cylinder
• Gas Lift Cover
• Star Base
• Casters (5)
• Hardware Pack (screws, Allen wrench)

4. Assembly Instructions

Follow these steps to assemble your FelixKing Model 370 office chair. It is recommended to have two people for certain steps.

Assembly Video Guide

Step-by-Step Assembly

1. Assemble the Chair Base:

   Connect the five legs to the central base tube using the provided M6x20 mm screws (x10). Ensure all screws are tightened securely. Then, firmly push the five casters into the holes at the end of each leg until they click into place. Finally, insert the gas lift cylinder into the central hole of the assembled base.

   

   Image: Illustration of the chair's star base with casters installed and the gas lift cylinder inserted.

2. Attach Armrests to Seat Cushion:

   Place the seat cushion upside down on a stable surface (e.g., the packaging box). Attach the armrests to the sides of the seat cushion using M6x25 mm screws (x4 for each armrest). Pay attention to the direction of the armrests; they are typically marked "L" for left and "R" for right. Ensure the screws are vertically aligned with the holes and tightened.

   

   Image: Close-up of an armrest attached to the seat cushion, highlighting the adjustable armrest feature.

3. Install Mechanism and Footrest:

   Attach the chair mechanism to the underside of the seat cushion using M6x20 mm screws (x4). Ensure the "FRONT" marking on the mechanism aligns with the front of the seat cushion. Then, attach the footrest assembly to the designated points on the underside of the seat cushion using M6x25 mm screws (x2). Verify the footrest is oriented correctly for extension.

4. Attach Backrest to Seat Cushion:

   Position the backrest onto the rear end of the mechanism attached to the seat cushion. Secure it using M8x20 mm screws (x4). Ensure a firm connection between the backrest and the seat assembly.

   

   Image: The backrest being connected to the seat, illustrating the ergonomic design.

5. Connect Seat Assembly to Base:

   Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is centered and fully seated. Apply gentle downward pressure to secure the connection. The chair is now fully assembled.

   

   Image: The complete FelixKing Model 370 office chair, ready for use.

5. Operating Instructions

Your FelixKing Model 370 chair offers several adjustable features for personalized comfort.

Usage Video Guide

1. Height Adjustment:

   To adjust the seat height, pull the lever located on the right side of the chair upwards. While seated, lift the lever to lower the seat. To raise the seat, lift the lever while standing or with minimal weight on the seat. Release the lever to lock the height.

2. Recline Function:

   The chair features a 90°-135° recline. Pull the recline lever (typically on the left side) to unlock the backrest. Lean back to your desired angle and release the lever to lock it in place. To return to an upright position, lean forward slightly while pulling the lever.

   

   Image: The chair demonstrating its recline capability, suitable for working, gaming, or resting.

3. Extendable Footrest:

   To use the footrest, pull it out from underneath the seat. Extend it to your preferred length. To retract, push it back under the seat until it is fully stored.

   

   Image: A user utilizing the retractable footrest for relaxation.

4. 4D Lumbar Support:

   The chair features adjustable 4D lumbar support. Adjust the lumbar support to fit the natural curve of your spine for optimal comfort during long periods of sitting.

   

   Image: Diagram highlighting the 7-zone ergonomic support system, including head, shoulder, back, lumbar, hip, hand, and leg support.

5. Adjustable Armrests:

   The armrests can be adjusted in height to provide optimal support for your arms and shoulders, reducing fatigue.

6. Maintenance

Proper care will extend the life of your FelixKing office chair.

• Cleaning: Wipe clean with a damp cloth. Avoid harsh chemicals or abrasive cleaners that may damage the PU leather.
• Inspection: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary.
• Casters: Keep casters free of hair and debris to ensure smooth movement.
• Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the PU leather to fade or crack.

7. Troubleshooting

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

• Chair Sinks or Won't Stay Up: The gas lift cylinder may be faulty. Contact customer support for a replacement.
• Chair Wobbles: Check all assembly screws and bolts, especially those connecting the base and mechanism, and tighten them securely.
• Casters Not Rolling Smoothly: Remove any hair or debris from the caster wheels. If still an issue, casters may need replacement.
• Difficulty Reclining/Adjusting: Ensure no obstructions are present and that the adjustment levers are fully engaged or disengaged.

8. Specifications

Image: Detailed diagram showing the dimensions and load-bearing capacity of the chair.

9. Warranty and Support

FelixKing is committed to providing high-quality products and customer satisfaction.

• Warranty: This product comes with a 5-year long-term service warranty.
• Customer Support: For any questions, concerns, or assistance with assembly or operation, please contact FelixKing customer support. 24/7 customer support is available.
• Returns: Enjoy 30-day free returns and exchanges.