KERDOM Office Chair User Manual

1. Introduction

Thank you for choosing the KERDOM Ergonomic Office Chair. This manual provides essential information for the proper setup, operation, and maintenance of your new chair. Designed for optimal comfort and productivity, this chair features an ergonomic design, breathable materials, and space-saving functionality to enhance your workspace.

The KERDOM Ergonomic Office Chair in black, featuring a mesh backrest, padded seat, and flip-up armrests, designed for comfort and versatility in any office or home setting.

Key features include:

• Ergonomic Design: Arc-shaped backrest to fit the natural curve of the back, reducing back pain.
• Breathable & Comfortable: High-quality mesh backrest and cushion for air circulation, preventing stuffiness.
• Space Saving: 90° flip-up armrests allow the chair to be stored under a desk.
• Multi-scene Application: Smooth-rolling casters suitable for various floor types (marble, wood, carpet) and 120° tilt tension for relaxation.
• Safe and Reliable: Quality tested with a maximum capacity of 250 lbs and a thickened explosion-proof steel chassis.

2. Safety Information

WARNING: To prevent injury, always adhere to the following safety guidelines:

• Do not exceed the maximum weight capacity of 250 lbs (113 kg).
• Ensure all screws and bolts are securely tightened before use and periodically check for looseness.
• Avoid standing on the chair or using it as a step stool.
• Keep hands and fingers clear of moving parts, especially during height and tilt adjustments.
• Use the chair on a flat, stable surface to prevent tipping.
• Keep children and pets away from the chair during assembly and adjustment.

For safe usage, ensure the chair's weight capacity is not exceeded (maximum 250 lbs).

3. Package Contents

Before assembly, please verify that all components are present and undamaged. If any parts are missing or damaged, please contact customer support.

• Backrest (1)
• Seat Cushion (1)
• Armrests (2)
• Base Plate (1)
• Gas Lift Cylinder (1)
• Base (1)
• Casters (5)
• Assembly Hardware (Screws, Washers, Allen Wrench)

4. Setup and Assembly

For detailed, step-by-step assembly instructions, please refer to the official Installation Manual (PDF). A general overview of the assembly process is provided below:

1. Attach the casters to the chair base by firmly pushing them into the holes at the end of each leg until they click into place.
2. Insert the gas lift cylinder into the center hole of the assembled base.
3. Secure the base plate to the underside of the seat cushion using the provided screws and the Allen wrench. Ensure the front of the plate aligns with the front of the seat.
4. Attach the armrests to the seat cushion using the designated screws. Pay attention to the left and right armrests.
5. Connect the backrest to the seat assembly and armrests, securing it with the remaining screws.
6. Carefully place the assembled seat and backrest onto the gas lift cylinder.

This diagram illustrates the key dimensions of the chair and provides a visual guide to the main components involved in assembly, including the base, gas lift, seat, and backrest.

The chair features convenient flip-up armrests, allowing it to be easily pushed under a desk to save space when not in use, as shown in this image.

5. Operating Instructions

Your KERDOM Office Chair is designed for intuitive adjustments to suit your comfort and workspace needs.

5.1 Height Adjustment

To adjust the seat height, 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.

This image highlights the chair's adjustable height mechanism (10cm range) and flexible casters, which ensure smooth movement across various flooring materials like marble, wood, and carpet.

5.2 Armrest Adjustment (Flip-up)

The armrests can be flipped up to a 90° angle. Simply grasp each armrest and rotate it upwards until it locks into the vertical position. This feature allows you to push the chair closer to your desk, saving space when not in use.

5.3 Tilt Tension and Rocking Function

The chair features a 120° tilt tension for a relaxing experience. To adjust the tilt, locate the knob beneath the seat. Turn the knob clockwise to increase tension (making it harder to recline) or counter-clockwise to decrease tension (making it easier to recline).

The chair's S-shaped backrest is designed for ergonomic support, conforming to the natural curve of the spine. It also features a 30° back tilt function for comfortable reclining.

5.4 Breathable Mesh and Comfortable Cushion

The mesh backrest and high-quality cushion are designed to facilitate air circulation, preventing heat buildup and ensuring a comfortable sitting experience, especially during long periods of use.

This image highlights the breathable mesh backrest, which promotes airflow to prevent stuffiness, and the soft, skin-friendly sponge armrests for enhanced comfort.

5.5 Official Product Video

6. Maintenance

Proper maintenance will extend the life and appearance of your KERDOM Office Chair.

• Cleaning: Wipe clean with a damp cloth. For stubborn stains on the mesh or fabric, use a mild soap solution and a soft brush, then wipe dry. Avoid harsh chemicals or abrasive cleaners.
• Inspection: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary to maintain stability and safety.
• Casters: Keep the casters free of hair, dust, and debris to ensure smooth rolling. You may occasionally need to clean them with a small brush or vacuum.
• Moving the Chair: When moving the chair, lift it by the base rather than dragging it to prevent damage to the casters or floor.

7. Troubleshooting

If you encounter any issues with your KERDOM Office Chair, refer to the common problems and solutions below:

If you cannot resolve the issue using the above solutions, please contact KERDOM customer support for further assistance.

8. Specifications

9. Warranty and Support

KERDOM is committed to providing safe and reliable products. Your office chair has passed quality tests to ensure durability and performance.

9.1 Warranty Information

Specific warranty details may vary. Please refer to the warranty card included with your product or contact KERDOM customer service for comprehensive information regarding warranty coverage and terms.

9.2 Customer Support

If you have any questions, concerns, or require assistance with your KERDOM Office Chair, our dedicated after-sales team is ready to help you.

For immediate assistance, you may also refer to the detailed Installation Manual (PDF) which contains additional information and diagrams.