SIHOO B100SE Ergonomic Office Chair User Manual

1. Introduction

Thank you for choosing the SIHOO B100SE Ergonomic Office Chair. This manual provides essential information for the assembly, operation, maintenance, and troubleshooting of your new chair. Please read these instructions carefully before use to ensure proper function and longevity of the product.

The SIHOO B100SE is designed to provide optimal comfort and support throughout your workday, featuring dynamic lumbar support, adjustable components, and breathable mesh materials.

2. 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. Contact customer support for replacement parts.
• Keep children away from the chair during assembly. Small parts may pose a choking hazard.
• The maximum recommended weight capacity for this chair is 136 kg (300 lbs).
• Use the chair on a flat, stable surface.

3. Package Contents

Please verify that all the following components are present in your package. If any parts are missing or damaged, please contact SIHOO customer support.

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

4. Assembly Instructions

Assembly is required for this chair. Please follow these general steps. Refer to the included assembly diagram for detailed visual guidance.

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 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 provided in the hardware kit.
4. Attach Armrests to Seat: Secure the left and right armrests to the sides of the seat cushion using the provided screws.
5. Attach Backrest to Seat: Connect the backrest to the seat assembly. Align the mounting points and secure with screws.
6. Attach Headrest: Insert the headrest into the designated slot at the top of the backrest.
7. Connect Seat to Gas Lift: Carefully place the assembled seat onto the gas lift cylinder, ensuring it is centered and stable.

Assembly Tip: It is recommended to assemble the chair on a soft, clean surface to prevent scratches. Having a second person assist with assembly can be helpful.

5. Adjustments and Operation

The SIHOO B100SE chair offers multiple adjustment options to customize your seating experience for optimal ergonomics and comfort.

Image: Guide to Correct Adjustment of an Ergonomic Chair. This image illustrates the proper posture and adjustment points for an ergonomic chair, including headrest, backrest, armrests, seat height, seat depth, and tilt tension.

5.1. Seat Height Adjustment

To adjust the seat height, locate the lever on the right side beneath the seat. While seated, pull the lever up to lower the seat. To raise the seat, stand up slightly and pull the lever up. Release the lever at the desired height to lock it in place.

• Range: 46.5 cm to 55.5 cm (18.3 in to 21.8 in)
• Recommended User Height: 155 cm to 185 cm (5'1" to 6'1")

5.2. Recline Function and Tilt Lock

The chair features a 3-position recline mechanism, allowing you to choose between 113°, 123°, or 133° angles for work, relaxation, or a quick rest.

Image: Adjust Recline According to Your Mood. This image shows two individuals in different recline positions: one at 90° for concentration and another at 135° for relaxation, illustrating the chair's recline capability.

To recline, pull the recline lever (usually on the left side) outwards and lean back. To lock the recline position, push the lever inwards at your desired angle. To return to an upright position, pull the lever outwards again and lean forward slightly.

5.3. Armrest Adjustment

The 2D armrests are adjustable in height and can be flipped up by 70° to save space.

• Height Adjustment: Press the button on the side of the armrest and slide it up or down to your preferred height. Release the button to lock.
• Flip-up Function: To flip the armrests up, lift them upwards until they lock into a vertical position. To return them, pull them down. This allows the chair to slide closer to your desk.
• Dimensions: 25.5 cm (10 in) L x 8.5 cm (3.3 in) D

5.4. Headrest Adjustment

The 2D headrest can be adjusted in height and rotation to support your neck at various angles.

Image: Comfortable Head and Neck Support. This image demonstrates the headrest's 10 cm (3.9 in) height adjustment and 45° rotation for personalized neck support.

• Height Adjustment: Gently pull the headrest up or push it down to one of the 11 available height positions.
• Rotation: Tilt the headrest forward or backward up to 45° to find the most comfortable angle for your neck.

5.5. Dynamic Lumbar Support

The SIHOO B100SE features an adaptive lumbar support that flexes with your movements, maintaining contact with your spine's natural curve.

Image: Dynamic Lumbar Support. This image highlights the chair's 4D dynamic lumbar support system, showing its adaptive curve, pressure-relieving frame, shock-absorbing spring, adaptive spring plate, and stabilizing frame.

• The lumbar support automatically adjusts to your posture as you lean forward or recline, providing continuous support.
• Lumbar Support Dimensions: 20 cm (7.9 in) width, 19.5 cm (7.7 in) height from seat.

6. Maintenance

Regular maintenance will help prolong the life and appearance of your SIHOO B100SE chair.

• Cleaning: Wipe the chair with a soft, damp cloth. For mesh areas, a mild soap solution can be used, followed by wiping with a clean, damp cloth. Avoid harsh chemicals or abrasive cleaners.
• 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 rolling.
• Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause fading of materials.

7. Troubleshooting

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

For issues not listed here or if troubleshooting steps do not resolve the problem, please contact SIHOO customer support.

8. Specifications

Image: Product Dimensions Diagram. This diagram provides detailed measurements of the SIHOO B100SE chair, including overall height (112-132 cm / 44.1-51.9 in), seat width (51.5 cm / 20.3 in), backrest width (49.5 cm / 19.5 in), and headrest width (36 cm / 14.2 in). It also shows recommended user height and weight.

Image: Reliable and Professional Components. This image highlights the chair's robust construction, including its 136 kg (300 lbs) weight capacity, silent PU casters, and SGS Class 4 certified gas lift, emphasizing durability and safety.

9. Warranty and Support

SIHOO is committed to providing high-quality products and excellent customer service.

9.1. Warranty Information

Your SIHOO B100SE chair is covered by a 3-year warranty from the date of purchase. This warranty covers manufacturing defects and significant malfunctions under normal use. Please retain your proof of purchase for warranty claims.

Image: Quality and Safety Certifications. This image displays various quality and design awards, including German Design Award, MUSE Awards, SGS, and BIFMA certifications, affirming the product's proven quality and safety standards.

9.2. Customer Support

If you have any questions, require assistance with assembly, need replacement parts, or wish to make a warranty claim, please contact SIHOO customer service. We aim to resolve any issues promptly.

• Contact: Refer to the contact information provided with your purchase or visit the official SIHOO website.
• Replacement Parts: We can provide replacement components for various parts, including the backrest, armrests, and other elements, if needed.