OTO Zenpex Ergonomic Mesh Office Chair Instruction Manual

Introduction

Thank you for choosing the OTO Zenpex Ergonomic Mesh Office Chair. This manual provides essential information for the safe assembly, operation, and maintenance of your new chair. Please read these instructions carefully before use and retain them for future reference.

Safety Information

• Always assemble the chair according to the provided instructions.
• Do not exceed the maximum weight limit of 300 pounds (136 kg).
• Keep the chair on a stable, level surface to prevent tipping.
• Avoid standing on the chair or using it as a step stool.
• Ensure all bolts and screws are securely tightened before use and check periodically.
• Keep children and pets away during assembly.
• Do not use the chair if any parts are damaged or missing. Contact customer support for replacement parts.

Product Overview

The OTO Zenpex Ergonomic Mesh Office Chair is designed for comfort and support during extended periods of sitting. It features multiple adjustable components to customize your seating experience.

Key Features:

• Adjustable Seat Depth: 1.96 inches (5 cm) for customized thigh support.
• Dynamic Lumbar Support: Adapts to your posture for continuous spinal alignment.
• Breathable Mesh: High-elastic mesh for optimal airflow and support.
• 3D Adjustable Armrests: Multi-directional adjustment for various postures.
• Height/Angle Adjustable Headrest: For personalized neck support.
• 135° Recline Backrest: With multiple lockable positions for work, gaming, or rest.
• Retractable Footrest: For enhanced relaxation.
• BIFMA & SGS Certified: Ensures durability and safety standards.

Image: The OTO Zenpex Ergonomic Mesh Office Chair in Grey, showcasing its overall design and features.

Assembly Instructions

Please follow the step-by-step instructions provided in the separate assembly guide included with your chair. Ensure all components are present before beginning assembly. Assembly tools are included.

1. Unpack all components and verify against the parts list in the assembly guide.
2. Attach the casters to the chair base.
3. Insert the gas lift into the center of the base.
4. Assemble the seat and backrest components as directed.
5. Attach the assembled seat and backrest to the gas lift.
6. Install the armrests and headrest.
7. Ensure all screws and bolts are tightened securely.

For detailed visual instructions, refer to the assembly diagrams in your included manual.

Operating Instructions

Chair Height Adjustment

To adjust the chair height, locate the lever under the right side of the seat. Pull the lever up while seated to lower the chair, or pull it up while standing to raise the chair. Release the lever at the desired height.

Seat Depth Adjustment

The seat depth can be adjusted by 1.96 inches (5 cm). Locate the lever or button under the seat, typically on the left side. Activate the mechanism and slide the seat forward or backward to achieve optimal thigh support, ensuring a gap between the seat edge and your knees. Release the lever/button to lock the position.

Image: Illustration demonstrating the 1.96-inch adjustable seat depth feature.

Dynamic Lumbar Support

The chair features a dynamic dual lumbar support system that automatically adjusts to your back's natural curve and movements, providing continuous support. No manual adjustment is typically required for this feature.

Image: Diagram illustrating the dynamic dual lumbar support system conforming to the spine.

Armrest Adjustment

The armrests are 3D adjustable. Use the buttons or levers on the armrests to adjust their height, depth (forward/backward), and angle (pivot) to suit your preference and support your arms and shoulders.

Headrest Adjustment

The headrest can be adjusted for height and angle. Gently push or pull the headrest to move it up or down, and tilt it to find the most comfortable position for your neck and head. Some adjustments may require a hex key (included with assembly tools).

Image: Illustration detailing the height and angle adjustments of the 3D ergonomic headrest.

Recline Function and Footrest

To recline the backrest, locate the recline lever (usually on the left side under the seat). Pull the lever to unlock the recline, lean back to your desired angle (up to 135°), and push the lever back to lock the position. To use the retractable footrest, pull it out from under the seat and extend it. Push it back in when not in use.

Maintenance

• Cleaning: Wipe clean with a damp cloth. Avoid harsh chemicals or abrasive cleaners that may damage the mesh or frame materials.
• Inspection: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary.
• Casters: Keep casters free of debris (hair, dust) to ensure smooth movement.

Troubleshooting

• Chair Squeaks: Check and tighten all assembly bolts. A small amount of silicone spray on moving parts may help.
• Gas Lift Not Adjusting: Ensure the height adjustment lever is fully engaged or disengaged. If the issue persists, the gas lift may need replacement.
• Unstable Chair: Verify that the chair is on a flat surface and all base components are securely attached.

If you encounter issues not listed here or require further assistance, please contact OTO customer support.

Specifications

Image: Illustration highlighting the chair's compliance with US BIFMA standards for durability and safety.

Image: Detail of the SGS Steel Class-4 Gas Rod, indicating high-quality and safe height adjustment mechanism.

Warranty and Support

The OTO Zenpex Ergonomic Mesh Office Chair comes with a 3-year warranty from the date of purchase. This warranty covers defects in materials and workmanship, including parts replacement.

For warranty claims, technical support, or any inquiries, please contact the OTO Official Store customer service. Please have your purchase receipt and model number (ZP-01) ready when contacting support.

• Manufacturer: OTO Wellness Pte. Ltd.
• Seller: OTO Official Store