DUMOS 389rd
DUMOS Ergonomic Computer Gaming Chair User Manual
Model: 389rd
Brand: DUMOS
Introduction
Thank you for choosing the DUMOS Ergonomic Computer Gaming Chair. This manual provides detailed instructions for assembly, operation, maintenance, and troubleshooting to ensure you get the most out of your new chair. Please read this manual thoroughly before assembly and use.
Safety Information
It is crucial to follow all safety guidelines to prevent injury and damage to the product.
- Always assemble the chair according to the provided instructions.
- Do not exceed the maximum weight recommendation of 275 pounds.
- Be cautious when using the tilting mechanism to prevent falls or injuries.
- Keep the chair away from heat sources to prevent damage to the materials.
Product Features
The DUMOS Ergonomic Computer Gaming Chair is designed with several features to enhance comfort and functionality:
- Ergonomic Comfort: Adjustable height, rocking mode, and armrests. The S-shaped backrest follows the natural curve of the human body to relieve neck and back pain during prolonged use.
- High Quality & Sturdy Construction: Features a BIFMA-certified metal base and a Class 3 stage gas lift for improved safety and durability.
- Durable & Stable: Constructed from rugged chrome-plated metal, supporting up to 275 pounds. Equipped with silent nylon rolling casters for excellent stability and smooth mobility without scratching floors.
- Thicken Cushion & Flip-Up Armrest: High-density memory foam cushion provides comfort for various body types. 90° flip-up armrests allow for versatile arm placement and enable the chair to be easily pushed under a desk to save space.
- 360° Swivel: Allows for full rotation, providing flexibility and ease of movement.
- Rocking Mode (90°-135°): Ideal for working, reading, playing, or napping, helping to relieve fatigue.
Figure 1: Key features of the DUMOS Ergonomic Computer Gaming Chair.
Figure 2: Rocking angle adjustment from 90° to 135° for optimal comfort.
Figure 3: Flip-up armrests for versatility and space-saving.
Setup and Assembly
The DUMOS Ergonomic Computer Gaming Chair is designed for easy assembly. All necessary mounting parts and tools are included in the package. Electronic installation instructions and videos are also available to guide you through the process, which typically takes about 15 minutes.
For detailed step-by-step instructions, please refer to the Installation Manual (PDF).
Figure 4: Fully assembled DUMOS Gaming Chair.
Operating Instructions
Height Adjustment
To adjust the chair's height, locate the lever on the right side beneath the seat. Pull the lever upwards while applying or releasing weight from the seat to move the chair up or down. Release the lever to lock the height in place.
Rocking/Tilting Mechanism
The chair features a rocking mode that allows for a recline from 90° to 135°. To activate the rocking function, pull the lever on the left side beneath the seat outwards. To lock the chair in an upright position, push the lever inwards. The tension of the rocking mechanism can be adjusted using the round knob located at the front under the seat.
Flip-Up Armrests
The armrests can be flipped up by rotating them upwards from their normal position. This allows the chair to be pushed closer to a desk or to provide more freedom of movement when armrests are not desired. To return them to the down position, simply rotate them back down.
Maintenance
Proper care will extend the life of your DUMOS Gaming Chair:
- Cleaning: Wipe clean with a damp cloth. Avoid harsh chemicals or abrasive cleaners that may damage the PU leather.
- Regular Checks: Periodically check all bolts and screws to ensure they are tight. Re-tighten if necessary to maintain stability and safety.
- Caster Care: Keep the casters free of hair and debris to ensure smooth rolling.
Troubleshooting
If you encounter any issues with your DUMOS Gaming Chair, please refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair wobbles or feels unstable. | Loose screws or bolts. | Check and tighten all assembly screws and bolts. Ensure the base is properly attached. |
| Chair does not adjust height. | Gas lift malfunction or lever not fully engaged. | Ensure the height adjustment lever is fully pulled or pushed. If the issue persists, the gas lift may need replacement. |
| 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. | Tilting mechanism lever not engaged or tension too tight. | Ensure the tilting lever is correctly engaged. Adjust the tension knob under the seat to a looser setting. |
Specifications
| Attribute | Detail |
|---|---|
| Brand | DUMOS |
| Model Name | DUMOS Ergonomic Computer Gaming Chair |
| Item Model Number | 389rd |
| Color | Red |
| Product Dimensions | 27.76"D x 25.39"W x 41.73"H |
| Item Weight | 30 pounds |
| Maximum Weight Recommendation | 275 Pounds |
| Material | PU Leather, Memory Foam (Fill Material), Chrome-plated Metal (Base) |
| Special Features | Adjustable Height, Arm Rest (Flip-up), Ergonomic, Rolling, Cushion Availability, Tilting (90°-135°), 360° Swivel |
| Recommended Uses | Office, Drafting, Relaxing, Reading, Gaming |
| Country of Origin | China |
| UPC | 708436295402 |
Figure 5: Detailed dimensions of the DUMOS Gaming Chair.
Warranty and Support
For any questions, concerns, or support regarding your DUMOS Ergonomic Computer Gaming Chair, please contact DUMOS customer service. Refer to your purchase documentation for specific warranty details.
Additional support documents can be found online:
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