COLAMY 91311
COLAMY Big and Tall Gaming Chair (Model 91311)
Instruction Manual
1. Introduction
Thank you for choosing the COLAMY Big and Tall Gaming Chair. This manual provides essential information for the assembly, operation, and maintenance of your new chair. Please read these instructions carefully before use to ensure proper setup and to maximize your comfort and the chair's lifespan.

Image: The COLAMY Big and Tall Gaming Chair in black and grey, showcasing its ergonomic design.
2. Safety Information
- This product has a maximum weight capacity of 400 lbs. Do not exceed this limit.
- Ensure a stable and safe base by using the chair on hard, level floors.
- Inspect the chair regularly for any signs of wear or damage, especially around the metal base and casters. Discontinue use if damage is found.
- Keep children and pets away from the chair during assembly.
- Avoid standing on the chair or using it as a step stool.
3. Setup and Assembly
Follow these steps to assemble your COLAMY Gaming Chair. All necessary hardware and tools are included.
3.1 Unboxing and Parts Identification
Carefully remove all components from the packaging. Verify that all parts are present according to the parts list provided in the box. It is recommended to lay out all parts on a clean, flat surface.
Video: A user unboxes and begins assembling the COLAMY gaming chair, showing the initial steps of putting together the base and seat.
3.2 Base Assembly
- Turn the star base upside down. Insert the casters into the holes at the end of each base leg until they click into place.
- Insert the gas lift into the center hole of the star base. Place the gas lift cover over the gas lift.

Image: Detailed view of attaching casters to the star base and inserting the gas lift, illustrating the first assembly steps.
3.3 Seat Assembly
- Attach the arms to the seat cushion using the provided M8*25mm bolts and wrench. Ensure they are securely fastened.
- Align the seat plate over the pre-drilled holes underneath the seat cushion. Make sure the front of the seat plate is facing the front of the seat cushion. Attach the seat plate to the seat cushion using M8*25mm bolts. Tighten all bolts with the wrench, being careful not to miss-thread or damage the seat.
- Push the assembled seat cushion down onto the gas lift firmly until the connection is secure.

Image: Close-up of attaching the armrests to the underside of the seat cushion with bolts.
3.4 Backrest Attachment
- Connect the back cushion to the seat cushion using the angle adjusters and M8*30mm bolts. Ensure the adjusters are correctly oriented.
- Attach the two angle adjuster cover sets using M5*10mm bolts.

Image: Illustrates the process of connecting the backrest to the seat using the metal brackets.
3.5 Pillow Installation
- Place the head pillow and lumbar pillow on the chair as desired for ergonomic support.

Image: The assembled COLAMY Gaming Chair with the headrest and lumbar support pillows attached.
4. Operating Instructions
Your COLAMY Gaming Chair offers multiple adjustment options for personalized comfort.
4.1 Seat Height Adjustment
To adjust the seat height, pull the lever located under the right side of the seat upwards. While holding the lever, either stand up to raise the seat or remain seated to lower it. Release the lever to lock the height.

Image: Illustration showing how to adjust the seat height using the lever beneath the seat.
4.2 Backrest Recline
To recline the backrest, pull the lever on the right side of the seat upwards and lean back to your desired angle (90° to 150°). Release the lever to lock the backrest in position.

Image: The COLAMY Gaming Chair demonstrating its recline capability from upright to a relaxed position.
4.3 Tilt and Tilt Tension Adjustment
The chair features a tilt function. To enable tilting, pull the lever on the left side of the seat outwards. Push it inwards to lock the tilt. The tilt tension knob, located underneath the seat, allows you to adjust the resistance of the tilting mechanism. Turn clockwise to increase tension, counter-clockwise to decrease.

Image: Close-up of the tilt recline handle and tilt lock lever, highlighting their functions.
4.4 4D Armrest Adjustments
The armrests are 4D adjustable, allowing for height, forward/backward, left/right, and rotational adjustments. Use the buttons and levers on the armrests to customize their position for optimal support.

Image: Demonstrates the various adjustment options for the 4D armrests, including height, depth, and rotation.
5. Maintenance
- Cleaning: Wipe the PU leather with a soft, damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Inspection: Periodically check all bolts and connections to ensure they are tight. Re-tighten if necessary.
- Casters: Keep casters free of debris (hair, dust) to ensure smooth rolling.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the material to fade or crack.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not adjust height. | Gas lift not properly engaged or damaged. | Ensure the gas lift is fully inserted into the base and seat plate. If still not working, contact customer support. |
| Chair wobbles. | Loose bolts or uneven floor. | Check and tighten all assembly bolts. Ensure the chair is on a flat, even surface. |
| Casters not rolling smoothly. | Debris caught in casters. | Remove any hair, dust, or debris from the caster wheels. |
| Backrest does not recline or lock. | Recline mechanism jammed or damaged. | Ensure the recline lever is fully engaged or disengaged. Check for obstructions. If issues persist, contact support. |
7. Specifications
| Feature | Detail |
|---|---|
| Brand | COLAMY |
| Model Name | 91311 |
| Product Dimensions | 20.87"D x 23.23"W x 51.97"H |
| Maximum Weight Recommendation | 400 Pounds |
| Material | PU Leather |
| Special Features | Adjustable Headrest, Adjustable Height, Ergonomic, Head Support, Reclining, 4D Armrests |
| Back Style | Solid Back |
| Seat Depth | 21 inches |
| Reclining Position Count | 90° to 150° |
| Gas Lift | Class 4 (SGS Certified) |
| Base | Heavy-duty metal base |
| Certifications | BIFIMA Certified |
8. Warranty and Support
COLAMY is committed to customer satisfaction. If you encounter any issues with your chair or have questions regarding its assembly or operation, please do not hesitate to contact our customer service team. Refer to your purchase documentation for specific warranty details and contact information.
For assistance, please visit the COLAMY store on Amazon or refer to the contact details provided with your product packaging.