KERDOM 968ZK Ergonomic Office Chair Instruction Manual

Introduction

This manual provides comprehensive instructions for the assembly, operation, maintenance, and troubleshooting of your KERDOM 968ZK Ergonomic Office Chair. Please read this manual carefully before use to ensure proper assembly and safe operation. This chair is designed to provide comfortable support with its ergonomic features, breathable mesh, and multiple adjustment options.

Image: The KERDOM 968ZK Ergonomic Office Chair in a typical office setting, showcasing its design and features including the rollerblade wheels.

Safety Information

• Ensure all components are securely fastened before use.
• Do not stand on the chair.
• Do not use the chair if any parts are damaged or missing.
• Maximum weight capacity: 150 kg (330 lbs). Do not exceed this limit.
• Keep children away from moving parts during adjustment.

Package Contents

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

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

Setup and Assembly

Follow these steps to assemble your KERDOM 968ZK office chair. It is recommended to assemble the chair on a soft, clean surface to prevent damage.

1. Attach Casters to Base: Insert the five casters into the holes at the end of each leg of the star base. Push firmly until they click 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: Align the mechanism plate with the screw holes on the underside of the seat cushion. Ensure the front of the mechanism faces the front of the seat. Secure with screws using the provided Allen wrench.
4. Attach Armrests to Seat: Secure the armrests to the sides of the seat cushion using the designated screws.
5. Attach Backrest to Seat: Connect the backrest assembly to the mechanism plate and seat cushion using the appropriate screws.
6. Attach Headrest: Slide the headrest into the designated slots at the top of the backrest.
7. Connect Seat Assembly to Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is centered and stable.

Image: Illustration of the chair's robust components including the high-quality pneumatic rod, steel base, and mute nylon wheels, essential for assembly.

Image: Detail of the strong wheelbase and smooth blade wheels, highlighting their design for stability and floor protection.

Operating Instructions and Adjustments

Your KERDOM 968ZK chair offers several adjustable features to customize your seating experience for optimal comfort and ergonomic support.

1. Seat Height Adjustment

To adjust the seat height, pull the lever located under the right side of the seat upwards. While holding the lever, stand up to raise the seat or remain seated and apply weight to lower it. Release the lever to lock the height.

2. Backrest Recline and Tilt Lock

The backrest can recline between 90° and 120°. Pull out the lever on the left side of the seat to unlock the rocking mode. Push the lever in to lock the backrest at your desired angle.

Image: Visual representation of the adjustable headrest and reclining backrest, showing the range of motion from 90 to 135 degrees and 30 degrees of headrest adjustment.

Image: Diagram illustrating how to adjust the tilting tension. Pull out the handle to unlock rocking mode, then turn the knob clockwise to loosen or counter-clockwise to tighten the tension.

3. Armrest Adjustment

The armrests are 3D adjustable. They can be moved up and down, forward and backward, and rotated inwards or outwards to suit your preference and save space when not in use (90° flip-up capability).

4. Headrest Adjustment

The headrest is adjustable in height and angle (up to 30° rotation) to provide optimal support for your cervical spine.

5. Lumbar Support

The chair features an adjustable lumbar support designed to conform to the natural curve of your lower back, providing targeted support.

Image: Diagram highlighting the three key ergonomic support points of the chair: cervical spine, shoulder and spine, and lumbar spine.

Image: Illustration of the chair's ergonomic design, showing how it supports the human curve of the back and features a rotatably liftable headrest.

Maintenance

To ensure the longevity and appearance of your KERDOM 968ZK office chair, follow these simple maintenance guidelines:

• Cleaning: Wipe the mesh and plastic surfaces with a soft, damp cloth. For stubborn stains, use a mild soap solution and then wipe with a clean, damp cloth. Avoid harsh chemicals or abrasive cleaners.
• Inspection: Periodically check all screws and bolts to ensure they are tight. Retighten if necessary.
• Casters: Keep the casters clean from hair and debris to ensure smooth movement.
• Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the mesh and plastic to fade or degrade.

Troubleshooting

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

Specifications

Image: Detailed diagram showing the dimensions of the KERDOM 968ZK Ergonomic Office Chair.

Warranty and Support

KERDOM provides professional after-sales service. If you encounter any defects not caused by human factors, please contact us through your purchase platform. For Amazon purchases, log in to your account, navigate to 'Your Orders', find the order number, and click 'Contact Seller'. We aim to provide effective and professional solutions within 24 hours.