Introduction
This manual provides instructions for the assembly, operation, maintenance, and troubleshooting of your COMHOMA Ergonomic Office Chair, model CH231-NEW. Please read this manual carefully before assembly and use to ensure proper function and longevity of your chair.
Image: The COMHOMA Ergonomic Office Chair CH231-NEW in a modern office setting.
Product Dimensions
Understanding the chair's dimensions is crucial for ensuring it fits your workspace and body type.
Image: Diagram showing the dimensions of the COMHOMA office chair in centimeters. Key measurements include total height (122cm), backrest width (65cm), seat width (50cm), seat depth (59cm), and seat height range (45cm-55cm).
Setup and Assembly
The COMHOMA office chair is designed for easy assembly. All necessary tools and fully illustrated instructions are included in the package. One person can typically assemble the chair within 30 minutes.
Key Components:
- Seat cushion and frame (FSC certified wood)
- Gas lift (SGS Class 3 certified)
- Sturdy metal base (BIFMA certified)
- Casters
- Backrest with integrated coat hook
- Adjustable headrest
- Adjustable lumbar support
- Flip-up armrests
Follow the step-by-step instructions provided in the box for detailed assembly. Ensure all screws are tightened securely before use.
Image: Illustration of the chair's high-quality components, including the SGS Class 3 certified gas lift, silent 360-degree casters, and the robust metal base with a load capacity of up to 150 kg.
Operating Instructions
1. Seat Height Adjustment
To adjust the seat height, pull the lever located under the seat upwards while applying or releasing body weight. Release the lever at the desired height.
Image: Illustration showing the seat height adjustment lever and the knob for adjusting backrest tension. The chair can recline from 90 to 135 degrees.
2. Backrest Recline and Tension
The chair features a multi-level tilting function. Pull the handle to recline the backrest. Rotate the knob under the seat to adjust the backrest tension, allowing you to customize the recline resistance from 90° to 135°.
3. Headrest Adjustment
The 3D headrest can be adjusted in both height (up to 8cm) and angle to provide optimal neck support.
4. Lumbar Support Adjustment
The lumbar support is height-adjustable over multiple levels to conform to your body's natural curve and promote a healthy sitting posture.
Image: Close-up view of the adjustable headrest (height and tilt) and the adjustable lumbar support mechanism.
5. Flip-Up Armrests
The armrests can be flipped up by 90 degrees, allowing the chair to be pushed closer to a desk or stored compactly, saving space in tight workspaces.
Image: Illustration demonstrating the 90-degree flip-up armrests, showing how they allow the chair to be stored under a desk for space-saving.
6. Integrated Coat Hook
The backrest features integrated anti-slip grip points, ideal for hanging coats or bags, preventing clothes from piling up.
Image: Close-up of the chair's backrest showing the integrated coat hook and anti-slip grip points.
Maintenance
To ensure the longevity and optimal performance of your COMHOMA office chair, follow these maintenance guidelines:
- Cleaning: The manufacturer recommends dry cleaning for the chair's fabric and mesh components. For the metal and plastic parts, wipe with a damp cloth and mild detergent. Avoid abrasive cleaners.
- Regular Checks: Periodically check all screws and bolts to ensure they are tight. Re-tighten if necessary.
- Caster Care: Keep the casters clean from hair and debris to ensure smooth movement.
- Gas Lift: The SGS Class 3 gas lift is designed for long-term, trouble-free operation. Avoid applying excessive force beyond its rated capacity.
Troubleshooting
If you encounter any issues with your COMHOMA office chair, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not adjust height | Gas lift malfunction or lever not engaged properly. | Ensure the height adjustment lever is fully engaged. If the issue persists, the gas lift may need replacement. |
| Chair wobbles | Loose screws or uneven floor. | Check and tighten all assembly screws. Ensure the chair is on a flat, even surface. |
| Casters do not roll smoothly | Debris caught in casters. | Clean any hair, dust, or debris from the caster wheels. |
| Backrest does not recline or is too stiff/loose | Recline mechanism locked or tension knob incorrectly set. | Ensure the recline lock is disengaged. Adjust the backrest tension knob (under the seat) to your preference. |
Specifications
| Feature | Detail |
|---|---|
| Brand | COMHOMA |
| Model Number | CH231-NEW |
| Color | Black |
| Product Dimensions (L x W x H) | 59 x 65 x 122 cm |
| Material | Metal, Mesh |
| Item Weight | 20 Kilograms |
| Special Features | Adjustable Headrest, Adjustable Lumbar Support, Flip-up Armrests, Integrated Coat Hook |
| Back Style | Full Back |
| Frame Material | Metal |
| Care Instructions | Dry cleaning recommended for fabric/mesh. |
| Gas Lift Certification | SGS Class 3 |
| Base Certification | BIFMA |
| Max Static Pressure Capacity | 136 kg (BIFMA certified) |
Warranty and Support
Information regarding specific warranty terms and customer support contact details may be found on the COMHOMA official website or within the product packaging. Please retain your proof of purchase for warranty claims.
For further assistance, please contact COMHOMA customer service.
