Marsail Armless Office Desk Chair (Model MSOC1) Instruction Manual

Important Safety Information

Always ensure the chair is on a stable surface before use.
Do not adjust the height or tilt while seated.
Keep fingers and other body parts away from moving parts during adjustment.
Do not exceed the maximum weight capacity of 300 pounds (136 kg).
Always follow the assembly instructions carefully to ensure the chair is properly assembled and stable.

1. Setup and Assembly

The Marsail Armless Office Desk Chair requires assembly. It is designed for straightforward setup, typically taking around 20-30 minutes with two people, though it can be assembled by one individual. Clear and concise instructions are included with the product. White gloves and necessary tools are provided to assist with the assembly process.

Ensure all components are present before beginning assembly. Follow the step-by-step instructions provided in the packaging. Some screw threads may contain lubricant to facilitate tightening.

Illustration of 20-Minute Easy Assembly — Image: Illustration indicating 20-Minute Easy Assembly for the chair.

2. Operating Instructions

2.1 Height Adjustment

The chair features a 3.15-inch adjustable height range. To adjust the seat height, locate the lever under the seat. Pull the lever upwards while applying or releasing weight from the seat to move it up or down. Release the lever to lock the seat at your desired height.

Diagram showing chair height adjustment and tilt-rock mechanism — Image: Diagram illustrating the 3.15-inch height adjustment and 90°-120° tilt range of the chair.

2.2 Tilt and Rock Function

The chair offers a tilt angle between 90° and 120°, allowing for a comfortable recline. A knob located under the seat controls the tilt tension. Turn the knob clockwise to increase tension (making it harder to recline) or counter-clockwise to decrease tension (making it easier to recline).

2.3 Swivel and Mobility

The chair is equipped with a 360-degree swivel function and large, smooth-rolling caster wheels. This allows for effortless movement and rotation across various floor surfaces, including carpet, tile, and wood, ensuring seamless transitions between tasks or areas.

Close-up of the chair's smooth casters on a wooden floor — Image: Close-up view of the chair's smooth, quiet caster wheels, suitable for various floor types.

2.4 Versatile Seating Positions

Designed with a wide, armless seat, this chair provides unrestricted movement and allows for various comfortable sitting positions, including cross-legged. The two-layer memory foam cushion offers both soft comfort and firm support for extended periods of sitting.

Woman sitting comfortably cross-legged in the wide seat chair — Image: A woman sitting comfortably cross-legged in the wide-seated, armless office chair, demonstrating its versatility.

Video: Official Marsail video showcasing the armless office desk chair with wheels, highlighting its features and versatility.

3. Maintenance and Care

3.1 Cleaning

The chair is upholstered with premium PU leather, which is waterproof and wear-resistant. For routine cleaning, simply wipe the surface with a damp cloth. This will effortlessly restore its original condition. Avoid using harsh chemicals or abrasive cleaners that could damage the material.

Hand wiping the PU leather surface of the chair with a damp cloth — Image: A hand demonstrating the easy cleaning of the premium PU leather surface with a damp cloth.

3.2 General Care

Regularly check all screws and connections to ensure they remain tight. If any parts become loose, tighten them immediately to maintain stability and safety. Avoid prolonged exposure to direct sunlight or extreme temperatures, which can affect the material's longevity.

4. Troubleshooting

Chair feels wobbly: Ensure all assembly screws are securely tightened. Check the base and gas lift for proper installation.
Difficulty adjusting height: Verify that the height adjustment lever is fully engaged or disengaged. If the gas lift is unresponsive, contact customer support.
Casters not rolling smoothly: Check for any debris (hair, dust) caught in the wheels and clean them. Ensure the chair is used on an appropriate surface as recommended.
Chair does not tilt: Adjust the tilt tension knob under the seat. Ensure it is not overtightened, preventing recline.

5. Specifications

Brand	Marsail
Model Name	MSOC1
Color	Brown
Material	Faux Leather, Plastic (Frame: Wood, Steel)
Fill Material	Memory Foam
Product Dimensions (D x W x H)	19.1" x 24.8" x 34.2"
Item Weight	30.86 Pounds (14 kg)
Maximum Weight Recommendation	300 Pounds (136 kg)
Features	Adjustable Height, Rolling, Space Saving, 360° Swivel, 90°-120° Tilt
UPC	810145630419

Diagram showing the product dimensions and 300 lbs weight capacity — Image: Detailed product dimensions including depth, width, height, and weight capacity.

6. Warranty and Support

For specific warranty details and customer support, please refer to the documentation included with your purchase or contact Marsail directly through their official website or customer service channels. Extended protection plans may be available for purchase separately.

Marsail MSOC1