FelixKing Ergonomic Office Chair 918-H User Manual

1. Product Overview

The FelixKing Ergonomic Office Chair 918-H is designed to provide comfort and support for extended periods of sitting. It features multiple adjustable components to customize your seating experience, including a headrest, lumbar support, and armrests. This manual provides instructions for assembly, operation, maintenance, and troubleshooting.

Image: Rear view of the FelixKing Ergonomic Office Chair 918-H, showcasing the mesh backrest, adjustable headrest, and flip-up armrests.

2. Package Contents

Before assembly, ensure all components are present. The package should include:

• Chair Backrest with Headrest
• Seat Cushion
• Armrests (2)
• Gas Lift Cylinder
• Star Base
• Casters (5)
• Mechanism Plate
• Hardware Kit (screws, washers, Allen wrench)

Image: Diagram illustrating the product dimensions and indicating approximately 15 minutes for easy assembly with included tools.

3. Assembly Instructions

Assembly typically takes about 15-30 minutes with the included tools. Follow these general steps:

1. Attach Casters to Base: Insert the five casters into the holes at the end of each leg of the star base until they click securely into place.
2. Insert Gas Lift: Place the gas lift cylinder into the center hole of the 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 aligns with the front of the seat.
4. Attach Armrests to Seat: Fasten the armrests to the sides of the seat cushion using the appropriate screws.
5. Attach Backrest to Seat: Connect the backrest to the seat assembly. Tip: It may be easier to attach the L-shape side brackets to the seat first, then align and attach the backrest. Do not fully tighten screws until all are in place to allow for minor adjustments.
6. Connect Seat Assembly to Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is centered and stable.
7. Final Tightening: Once all components are aligned, securely tighten all screws.

Refer to the detailed diagram for visual guidance during assembly.

4. Operating Instructions and Adjustments

The FelixKing 918-H chair offers several adjustments for personalized comfort:

4.1. Seat Height Adjustment

• Locate the lever on the right side, under the seat.
• To raise the seat: Lift the lever while taking your weight off the seat.
• To lower the seat: Lift the lever while remaining seated.
• The seat height can be adjusted by approximately 10 cm (3.9 inches).

4.2. Backrest Tilt and Rocking Function

• The chair features a 90-120° tilt adjustment.
• To engage rocking: Pull the lever on the left side, under the seat, outwards.
• To lock the backrest in an upright position (90°): Push the lever inwards.
• Adjust rocking tension: Rotate the round knob located under the seat to increase or decrease the resistance of the rocking motion.

Image: Illustration detailing the rocking function, tilt adjustment range (90-120 degrees), and the lever for locking the backrest and adjusting tension.

4.3. Adjustable Lumbar Support

• The lumbar support can be adjusted vertically by approximately 5 cm (2 inches).
• Gently push or pull the lumbar support pad up or down to find your preferred position.

Image: Diagram highlighting the ergonomic backrest design and the 5cm (2-inch) adjustable lumbar support for optimal spinal alignment.

4.4. Adjustable Headrest

• The headrest offers 3D adjustments:
  • Height: Adjust up and down by approximately 12 cm (4.72 inches).
  • Angle: Rotate the headrest by 35° and 45° for optimal neck support.
• Gently push or pull the headrest to adjust its height and angle.

Image: Detailed illustration of the 3D adjustable headrest, demonstrating its 35° and 45° rotation capabilities and 12cm (4.72 inches) vertical adjustment.

4.5. Flip-Up Armrests

• The armrests can be flipped up by 90° to allow the chair to be pushed closer to a desk or to save space.
• Simply lift the armrests upwards until they lock into the vertical position. To return them, pull them down.

Image: Illustration demonstrating the 90° flip-up armrests, allowing the chair to be stored compactly under a desk.

4.6. 360° Swivel and Silent Casters

• The chair offers full 360° swivel rotation for ease of movement.
• Equipped with quiet PU casters designed to protect various floor types and ensure smooth, silent movement.

Image: Diagram illustrating the chair's 360° rotation capability and the design of the silent casters for smooth movement on different floor surfaces.

5. Maintenance and Care

• Cleaning: For general cleaning, use a dry cloth. For deeper cleaning, the manufacturer recommends dry cleaning. Avoid harsh chemicals or abrasive cleaners.
• Mesh Fabric: The breathable mesh fabric is designed to prevent heat and sweat accumulation. Regularly wipe it down to keep it clean.
• Casters: Periodically check the casters for any accumulated debris (hair, dust) that might hinder smooth movement. Clean as necessary to protect your floors.
• Hardware: Occasionally check all screws and bolts to ensure they remain tight. Retighten if any looseness is detected.

Image: Illustration highlighting the breathable mesh backrest and high-density foam cushion, emphasizing comfort and airflow.

6. Troubleshooting

If you encounter any issues with your FelixKing Ergonomic Office Chair 918-H, consider the following:

• Squeaking Noises: Ensure all bolts are securely tightened. A small amount of silicone spray on moving parts (excluding the gas lift) may help.
• Difficulty Adjusting Height: Check if the gas lift lever is fully engaged. Ensure no obstructions are preventing the gas lift from operating smoothly.
• Unstable Chair: Verify that all casters are properly inserted into the base and all screws are tightened. Ensure the chair is on a flat, even surface.
• Casters Not Rolling Smoothly: Inspect casters for debris (hair, lint) and clean them.

For persistent issues, please contact customer support.

7. Specifications

8. Warranty and Support

Warranty: The FelixKing Ergonomic Office Chair 918-H comes with a 1-year warranty from the date of purchase, covering manufacturing defects.

Customer Support: If you have any questions, concerns, or require assistance with your product, please contact FelixKing customer service.

• Email: service@felixking703.com
• Phone: +1 (269) 397-4226

Alternatively, you can contact us through your Amazon account:

1. Login to your Amazon Account.
2. Go to "Your Orders".
3. Find the relevant order for your FelixKing chair.
4. Click "Contact Seller".

Image: Contact information for FelixKing customer support, including email and phone number.