1. Introduction
Thank you for choosing the Stella Mia Big & Tall Office Chair, Model SMLC205. This manual provides essential information for the safe assembly, operation, and maintenance of your new ergonomic office chair. Designed for comfort and support, this chair features an extra-wide seat, high-back ergonomics with lumbar support, a 165-degree recline function, and a retractable footrest. Please read these instructions carefully before use and retain them for future reference.
Image 1.1: User seated in the Stella Mia Big & Tall Office Chair.
2. Safety Information
To ensure safe operation and prevent injury or damage, please adhere to the following safety guidelines:
- Weight Capacity: This chair is designed to support a maximum weight of 400 lbs (181 kg). Do not exceed this limit.
- Assembly: Assemble the chair strictly according to the instructions provided. Ensure all screws and bolts are securely tightened before use.
- Stability: Avoid standing on the chair or using it as a step stool. Do not lean excessively to one side or the back, especially when fully reclined, to prevent tipping.
- Children: Keep children away from the chair during assembly. Do not allow children to play on or around the chair unsupervised.
- Moving Parts: Be cautious of moving parts during adjustment to avoid pinching fingers or other body parts.
- Maintenance: Regularly inspect the chair for loose parts, damage, or wear. Discontinue use if any damage is found and contact support for assistance.
Image 2.1: Chair components highlighting safety and durability.
3. Package Contents
Before beginning assembly, verify that all components are present and undamaged. If any parts are missing or damaged, please contact customer support.
| Component | Quantity |
|---|---|
| Seat Cushion | 1 |
| Backrest | 1 |
| Foot Rest | 1 |
| Armrests | 2 |
| Extra Lumbar Pillow | 1 |
| Legs & Wheels (Base with Casters) | 1 |
| Mechanism & Gas Cylinder | 1 |
| Screws & Screw Driver | 1 Set |
4. Setup (Assembly Instructions)
Assembly typically takes 30-50 minutes. Follow these steps carefully. An assembly video is also available for visual guidance.
Assembly Video Guide
Video 4.1: Official assembly guide for the Stella Mia Office Chair.
Step-by-Step Written Instructions:
- Attach Casters to Base: Insert the five casters into the holes at the end of each leg of the chair base. Push firmly until they click into place.
- Insert Gas Lift: Place the gas lift cylinder into the center hole of the assembled base.
- Attach Mechanism to Seat: Align the chair mechanism with the screw holes on the underside of the seat cushion. Secure it with the provided screws and tighten them using the included screwdriver. Ensure the front of the mechanism faces the front of the seat.
- Connect Backrest to Seat: Attach the backrest to the seat cushion using the designated screws. Make sure the backrest is firmly secured.
- Attach Armrests: Secure the armrests to both the seat and backrest using the remaining screws. Ensure they are tightly fastened.
- Place Assembled Top onto Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is centered and stable.
- Install Lumbar Pillow: Position the extra lumbar pillow as desired for additional back support.
- Test Chair: Sit on the chair and test all adjustment functions to ensure proper assembly and operation.
5. Operating Instructions
Familiarize yourself with the chair's adjustment features to optimize your comfort and support.
5.1 Height Adjustment
To adjust the chair's height, locate the lever on the right side beneath the seat. While seated, pull the lever up to lower the chair. To raise the chair, stand up and pull the lever up. Release the lever at your desired height.
5.2 Recline Function and Tilt Lock
The chair offers a smooth recline from 90 degrees (upright) to 165 degrees (nearly flat). Use the lever on the left side beneath the seat to adjust the recline angle. Pull the lever out to unlock the recline, lean back to your desired angle, and push the lever in to lock the position. To return to an upright position, pull the lever out and lean forward.
Image 5.1: Demonstrating the chair's recline and footrest.
5.3 Retractable Footrest
For added relaxation, the chair includes a hidden retractable footrest. To extend, pull the footrest out from beneath the seat. To retract, push it back in until it is fully stored.
5.4 Armrest Adjustment
The padded armrests are height-adjustable by 3.2 inches. To adjust, press the button located on the side of each armrest and move the armrest up or down to your preferred height. Release the button to lock it in place.
Image 5.2: Armrest height adjustment mechanism.
5.5 Lumbar Support Pillow
The chair comes with an extra lumbar support pillow. Position it along your lower back for personalized ergonomic support.
Image 5.3: Ergonomic high-back design with lumbar and head support.
6. Maintenance and Care
Proper care will extend the life and appearance of your Stella Mia office chair.
- Cleaning: Wipe clean with a soft, damp cloth. For tougher stains on the PU leather, use a mild soap solution and wipe dry immediately. Avoid harsh chemicals or abrasive cleaners.
- Inspection: Periodically check all bolts and screws to ensure they remain 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 the PU leather to fade or crack.
7. Troubleshooting
If you encounter any issues with your chair, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not adjust height | Gas lift cylinder malfunction or lever not engaged. | Ensure the height adjustment lever is fully engaged. If the issue persists, the gas lift may need replacement. |
| Chair wobbles or feels unstable | Loose screws or uneven assembly. | Check and tighten all assembly screws. Ensure the chair is on a flat, even surface. |
| Casters do not roll smoothly | Debris caught in casters. | Turn the chair over and remove any hair, dust, or debris from the caster wheels. |
| Recline function is stiff or not locking | Mechanism obstruction or damage. | Ensure no objects are obstructing the recline mechanism. Check the recline lever for proper engagement. |
If these solutions do not resolve the issue, please contact Stella Mia customer support.
8. Specifications
Key specifications for the Stella Mia Big & Tall Office Chair SMLC205:
- Model Name: SMLC205 Black
- Material: Faux Leather, High-resilience Foam, Spring, Metal Frame
- Product Dimensions (Overall): 32"D x 12"W x 22"H (Note: This appears to be packaging dimensions, actual assembled dimensions are shown in diagram)
- Seat Dimensions: 23.6"W x 20.47"D (55cm W x 52cm D)
- Seat Height Range: 21.2" - 24.4" (54cm - 62cm)
- Backrest Height: 31.5" (80cm)
- Armrest Height Adjustment: 3.2"
- Weight Capacity: 400 lbs (181 kg)
- Recline Angle: 90° to 165°
- Features: Retractable Footrest, Extra Lumbar Support Pillow, Heavy-duty five-star caster base, Class 4 Gas Cylinder
- Item Weight: 49 pounds (22.2 kg)
Image 8.1: Detailed product dimensions.
9. Warranty and Support
Stella Mia is committed to providing quality products and customer satisfaction. While specific warranty details are not provided in the product specifications, we encourage you to contact our support team for any product-related inquiries or assistance.
Customer Support:
- Phone: +1 (662) 200-9698
- Email: cs@stellamia.us
Please have your model number (SMLC205) and purchase information ready when contacting support.