Introduction
This manual provides detailed instructions for the assembly, operation, and maintenance of your Marsail Ergonomic Office Chair MSOC28B. Please read thoroughly before use to ensure proper setup and to maximize the chair's features for optimal comfort and productivity.
Safety Information
Assembly may be required. Always ensure all components are securely fastened before use. Do not exceed the maximum weight capacity of 300 lbs (136 kg). Avoid standing on the chair or using it for purposes other than sitting. Keep children and pets away during assembly.
Product Overview
The Marsail Ergonomic Office Chair MSOC28B is engineered to provide comprehensive support and comfort for extended periods of sitting. Its design focuses on ergonomic principles to promote healthy posture and reduce fatigue.
Key Features:
- Adjustable Lumbar Support: Features a 2.4-inch height-adjustable range to align with the natural curve of your spine, offering targeted relief for the lower back.
- Flexible Headrest & Armrests: Includes a 2D adjustable headrest with 45° tilt and 2.8-inch height adjustment for neck comfort. Height-adjustable armrests support proper arm positioning.
- Enhanced Recline Function: Offers a wide 90°-130° tilt range, allowing adjustment for both focused work and relaxed postures. Optimized for users up to 5'11" (180cm).
- Soft & Thick Seat Cushion: A 3.15-inch thick cushion adapts to your hips and thighs, providing exceptional softness and support with durable foam material.
- Sturdy & Breathable Construction: Equipped with a Class 3 gas lift, a robust metal base, and 360° PU swivel casters. The breathable mesh backrest promotes airflow to keep you cool.
Front view of the Marsail Ergonomic Office Chair MSOC28B, showcasing its mesh back, adjustable headrest, and seat cushion.
Setup and Assembly
Your Marsail Ergonomic Office Chair MSOC28B requires assembly. Please follow the instructions provided in the video below for a smooth setup process. Ensure all parts are present before beginning.
Official assembly video for the Marsail Ergonomic Office Chair MSOC28B, demonstrating each step of the setup process.
Operating Instructions
Familiarize yourself with the various adjustment mechanisms to customize your seating experience for maximum comfort and ergonomic support.
Adjusting Lumbar Support
The lumbar support can be adjusted vertically by 2.4 inches. Locate the adjustment knob or lever on the backrest and move it up or down to position the lumbar pad to comfortably support the natural curve of your lower back.
Illustration detailing the 2.4-inch vertical adjustment range of the chair's lumbar support for personalized comfort.
Adjusting Headrest
The 2D adjustable headrest can be tilted by 45° and adjusted vertically by 2.8 inches. Grasp the headrest and gently push or pull to adjust its height and angle until it comfortably cradles your neck and head.
Adjusting Armrests
The armrests are height-adjustable. Locate the button or lever on the side of each armrest, press it, and move the armrest up or down to your desired height. Release the button/lever to lock it in place. This helps maintain proper arm and shoulder posture.
Diagram illustrating the 3.5-inch height adjustment capability of the chair's armrests.
Recline Function
To recline the chair, locate the recline lever (typically on the right side under the seat). Pull the lever outwards to unlock the recline mechanism, then lean back to your desired angle (between 90° and 130°). Push the lever inwards to lock the backrest in position. To return to an upright position, pull the lever outwards again and lean forward slightly.
A person demonstrating the chair's recline function, showing the adjustable range from 90 to 130 degrees for work or relaxation.
Seat Cushion
The 3.15-inch thick seat cushion is designed for comfort. While not adjustable in height independently, its contoured shape provides ergonomic support. Ensure you are seated fully back in the chair to benefit from the cushion's design.
A close-up of the chair's 3.15-inch thick, contoured seat cushion, highlighting its plushness and support.
Maintenance
Regular maintenance helps prolong the life and performance of your Marsail Ergonomic Office Chair MSOC28B.
- Fastener Check: Periodically inspect all screws and bolts to ensure they are tight. Retighten as necessary to maintain stability.
- Cleaning: Clean the mesh backrest and fabric seat cushion with a soft, damp cloth and mild soap. Avoid using abrasive cleaners or harsh chemicals, as these can damage the materials.
- Caster Care: Regularly clean any hair, dust, or debris from the caster wheels to ensure smooth and effortless movement.
- Environmental Care: Do not expose the chair to direct sunlight for prolonged periods, as this can cause fading and degradation of materials. Avoid placing the chair in excessively humid environments.
Troubleshooting
If you encounter any issues with your chair, refer to the following common troubleshooting tips:
- Chair Sinks or Does Not Stay at Desired Height: This typically indicates an issue with the gas lift cylinder. Ensure the height adjustment lever is fully engaged. If the problem persists, the gas lift may need replacement. Contact customer support for assistance.
- Squeaking Noises: Check all connections, especially where the backrest and armrests attach to the seat mechanism. Tighten any loose screws. Applying a small amount of silicone-based lubricant to moving metal parts may also help.
- Casters Not Rolling Smoothly: Inspect the caster wheels for any accumulated hair, dust, or debris. Remove any obstructions. Ensure the floor surface is clean and free of obstacles.
- Backrest Feels Loose: Verify that the screws attaching the backrest to the seat mechanism are securely tightened.
Product Specifications
| Brand | Marsail |
| Model Name | Office chair (MSOC28B) |
| Color | Black |
| Product Dimensions | 27.6"D x 19.7"W x 51.4"H |
| Maximum Weight Recommendation | 300 Pounds |
| Material | Metal, Foam, Mesh, high-density natural sponge |
| Special Features | Adjustable Backrest, Adjustable Headrest, Adjustable Height, Adjustable Lumbar, Arm Rest |
| Back Style | High Back |
| Arm Style | Adjust the armrest up and down, Height Adjustable |
| Furniture Base Movement | Swivel |
| Included Components | Arm Pad, Caster |
| Item Weight | 34.8 pounds |
Warranty and Support
For warranty information, technical support, or to inquire about replacement parts, please contact Marsail customer service through their official channels or visit their website.
Available Protection Plans:
- 2-Year Protection Plan: Available for $27.99.
- 3-Year Protection Plan: Available for $34.99.
- Complete Protect: A monthly plan covering all eligible past and future purchases for $16.99/month.
Please refer to the specific terms and conditions of each protection plan for full coverage details.
