Furmax MY0240538001A
Furmax Big and Tall Office Chair User Manual
Model: MY0240538001A
Introduction
Thank you for choosing the Furmax Big and Tall Office Chair. This manual provides essential information for the safe assembly, operation, and maintenance of your new chair. Please read it thoroughly before use and retain it for future reference.
Safety Information
- Ensure all parts are present and undamaged before assembly. Do not use if any parts are missing or broken.
- Follow assembly instructions carefully. Do not overtighten screws, as this may cause damage.
- This chair is designed to support a maximum weight of 400 pounds. Do not exceed this weight limit.
- Keep children and pets away during assembly. Small parts may be a choking hazard.
- Use the chair on a flat, stable surface to prevent tipping.
- Avoid standing on the chair or using it as a step stool.
- Regularly check all bolts and screws to ensure they remain tight.
- Do not expose the chair to direct sunlight or extreme temperatures, as this may damage the material.
Package Contents
Please verify that all components are included in your package:
- Backrest Assembly
- Seat Cushion Assembly with Armrests and Footrest Mechanism
- Star Base (Metal)
- Casters (Wheels)
- Gas Lift Cylinder
- Gas Lift Cover
- Lumbar Support Pillow
- Assembly Hardware (Screws, Allen Wrench)
- Instruction Manual
Setup and Assembly
Assembly typically takes 20-30 minutes. It is recommended to assemble the chair on a soft, clean surface to prevent scratches.
Step 1: Attach Casters to Base
Insert the casters into the holes at the end of each leg of the star base. Push firmly until they click into place.

Image: Product size diagram illustrating the chair's dimensions and the base with casters. This image helps visualize the base assembly.
Step 2: Install Gas Lift
Place the gas lift cylinder into the center hole of the assembled star base. Then, slide the gas lift cover over the cylinder.
Step 3: Attach Seat to Gas Lift
Carefully place the seat cushion assembly onto the gas lift cylinder, ensuring it is centered and stable.
Step 4: Connect Backrest to Seat
Align the backrest with the mounting brackets on the seat. Secure it using the provided screws and Allen wrench. Start all screws loosely before fully tightening them to ensure proper alignment.

Image: Detailed view of the chair's backrest and seat, highlighting the ergonomic design and thick cushioning. This image provides a visual reference for the backrest attachment.
Step 5: Attach Lumbar Support Pillow
Position the lumbar support pillow on the backrest for optimal comfort. It can be adjusted vertically to suit your preference.

Image: Overview of chair features, including the lumbar support pillow. This image helps in understanding the placement of the lumbar pillow.
Operating Instructions
Your Furmax office chair offers several adjustable features to enhance your comfort and productivity.
Seat Height Adjustment
To adjust the seat height, locate the lever on the right side under the seat. Pull the lever up while sitting on the chair to lower it, or stand up and pull the lever up to raise it. Release the lever at your desired height.
Reclining Function and Tilt Lock
The chair features a reclining function allowing the backrest to tilt between 90 and 135 degrees. To recline, pull the lever on the left side of the chair. To lock the recline position, push the lever back down. To return to an upright position, lean forward slightly and pull the lever up.

Image: Visual guide to the chair's adjustable features, including the reclining mechanism and seat height. This image demonstrates how to use the reclining and height adjustment functions.
Retractable Footrest
For added comfort, especially when reclining, pull out the footrest located under the front of the seat. Extend it fully and rest your legs. Push it back in when not in use.
360° Swivel
The chair is designed to swivel 360 degrees, providing flexibility and ease of movement in your workspace.
Product Overview Video
Video: An official product video from Furmax demonstrating the features and functionality of the Ergonomic Office Chair, including its design, comfort, and adjustable components.
Maintenance
- Cleaning: For the PU leather, wipe with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners. For spills, blot immediately with a clean, dry cloth.
- Hardware Check: Periodically check all screws and bolts to ensure they are tight. Retighten as necessary to maintain stability and safety.
- Caster Care: Keep casters clean from hair and debris to ensure smooth rolling.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the PU leather to fade or crack.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair wobbles or is unstable. | Loose screws or uneven assembly. | Check and tighten all assembly screws. Ensure the chair is on a flat surface. |
| Chair does not adjust height. | Gas lift cylinder malfunction or lever issue. | Ensure the lever is fully engaged. If the issue persists, the gas lift may need replacement. Contact customer support. |
| Casters do not roll smoothly. | Debris (hair, dust) caught in casters. | Turn the chair over and remove any debris from the caster wheels. |
| Backrest does not recline or lock. | Recline mechanism stuck or damaged. | Check if the recline lever is fully engaged. Apply gentle pressure to the backrest while operating the lever. If still an issue, contact support. |
Specifications
| Feature | Detail |
|---|---|
| Brand | Furmax |
| Model Name | Ergonomic Office Chair |
| Model Number | MY0240538001A |
| Color | Grey |
| Product Dimensions (D x W x H) | 19.7"D x 28.3"W x 51.2"H |
| Item Weight | 50.7 pounds |
| Maximum Weight Capacity | 400 pounds |
| Material | Premium PU Leather, Foam (Fill Material), Metal (Base) |
| Reclining Angle | 90° to 135° |
| Assembly Required | Yes |
Warranty and Support
Furmax provides a standard warranty for its products. For specific warranty details, claims, or technical support, please refer to the warranty card included with your purchase or visit the official Furmax website.
Customer Service: For any questions or concerns, please contact Furmax customer service through the contact information provided on the product packaging or their official website. Please have your model number (MY0240538001A) and purchase date ready when contacting support.
You can also visit the Furmax Store on Amazon for more information and product offerings.
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