1. Introduction
Thank you for purchasing the Dowinx Gaming Chair LS-6689L. This manual provides essential information for the safe and correct assembly, operation, and maintenance of your new chair. Please read this manual thoroughly before assembly and retain it for future reference.
The Dowinx LS-6689L is an upgraded gaming chair designed for superior comfort and ergonomic support during extended periods of sitting, whether for gaming, work, or study. It features enhanced lumbar support, a thick seat cushion, 4D adjustable armrests, and a 165-degree reclining function with a retractable footrest.
2. Safety Information
- Weight Limit: Do not exceed the maximum weight capacity of 165 kg (363 lbs). Exceeding this limit may cause damage to the chair or personal injury.
- Assembly: Assemble the chair strictly according to the instructions provided. Ensure all screws and bolts are securely tightened before use.
- Stability: Do not stand on the chair. Avoid leaning excessively to one side or using the chair on uneven surfaces to prevent tipping.
- Children: Keep children away from the chair during assembly. Small parts can be a choking hazard.
- Movement: When moving the chair, lift it rather than dragging it to prevent damage to the casters or floor.
- Maintenance: Regularly check all components for wear and tear. Replace damaged parts immediately.
3. Package Contents
Before assembly, please verify that all components listed below are present and undamaged. If any parts are missing or damaged, please contact customer support.

Image: All components of the Dowinx Gaming Chair LS-6689L laid out for assembly.
- Backrest
- Seat Base
- Armrests (Left & Right)
- Gas Lift Cylinder
- Gas Lift Cover
- Star Base
- Casters (5 pcs)
- Mechanism Plate
- Lumbar Support Cushion
- Headrest Cushion
- Footrest Assembly
- Hardware Pack (Screws, Washers, Allen Key)
- Instruction Manual
4. Assembly Instructions
Follow these steps carefully to assemble your Dowinx Gaming Chair. It is recommended to have a second person assist with certain steps.
- Attach Casters to Star Base: Insert each of the five casters into the holes at the end of the star base until they click securely into place.
- Install Gas Lift: Place the gas lift cylinder into the center hole of the star base. Cover it with the gas lift cover.
- Attach Mechanism to Seat Base: Align the mechanism plate with the screw holes on the underside of the seat base. Ensure the front of the mechanism faces the front of the seat. Secure with four screws using the provided Allen key.
- Connect Seat to Gas Lift: Carefully place the assembled seat base onto the gas lift cylinder, ensuring the tapered end of the gas lift fits into the mechanism's opening.
- Attach Armrests: Secure the left and right armrests to the sides of the seat base using the designated screws. Ensure they are firmly attached.
- Attach Backrest to Seat Base: Align the backrest with the metal brackets on the seat base. Secure it using the screws provided. Do not overtighten initially; adjust for alignment, then tighten fully.
- Install Lumbar and Headrest Cushions: Attach the lumbar support cushion and headrest cushion using their elastic straps and buckles. Adjust their positions for optimal comfort.
- Install Footrest: Slide the footrest assembly into the designated slots under the seat. Ensure it moves smoothly.

Image: Comparison of Dowinx chair features including seat width, cushion thickness, and 4D armrests, illustrating key components.
5. Operating Instructions & Adjustments
Your Dowinx Gaming Chair offers multiple adjustment options to customize your seating experience.
5.1. Height Adjustment
- To raise the seat: While standing, pull the lever located on the right side of the seat upwards. The seat will rise. Release the lever at the desired height.
- To lower the seat: While seated, pull the lever located on the right side of the seat upwards. The seat will lower. Release the lever at the desired height.
5.2. Reclining Function
- To recline the backrest: Pull the lever on the left side of the seat upwards and lean back. Release the lever at your desired angle (between 90 and 165 degrees).
- To return to an upright position: Pull the lever on the left side upwards and lean forward slightly. The backrest will return to its original position.

Image: Diagram showing the recline, lock, and height adjustment functions of the Dowinx Gaming Chair.
5.3. Tilt Lock
- To unlock tilt: Pull the right lever outwards.
- To lock tilt: Push the right lever inwards.
5.4. 4D Armrest Adjustment
The 4D armrests offer multi-directional adjustments for optimal arm and shoulder support.
- Height Adjustment: Press the button on the side of the armrest and move it up or down. Release the button to lock.
- Front/Back Slide: Push the armrest pad forward or backward.
- Left/Right Adjustment: Slide the armrest pad left or right.
- Angle Rotation: Rotate the armrest pad inwards or outwards.

Image: Detailed view of the 4D armrest adjustments: up/down, front/back, left/right, and rotation.
5.5. Retractable Footrest
- To extend the footrest: Pull the footrest assembly outwards from under the seat.
- To retract the footrest: Push the footrest assembly back under the seat until it is fully stored.

Image: Dowinx Gaming Chair with the footrest extended, showing its use for relaxation.
5.6. Lumbar and Headrest Cushion Adjustment
The lumbar and headrest cushions are designed to provide targeted support.
- Adjust the position of the lumbar support cushion by sliding it up or down along the backrest straps to fit the curve of your lower back.
- Adjust the headrest cushion similarly to support your neck and head comfortably.

Image: Ergonomic design of the Dowinx Gaming Chair highlighting neck, back, and lumbar support cushions.
6. Maintenance
Proper care and maintenance will extend the life of your Dowinx Gaming Chair.
- Cleaning: Wipe the chair's surface with a soft, damp cloth. For stubborn stains, use a mild soap solution and then wipe with a clean, damp cloth. Avoid harsh chemicals or abrasive cleaners, as they can damage the carbon fiber PU leather.
- Inspection: Periodically check all screws and bolts to ensure they are tight. Retighten if necessary.
- Casters: Keep the casters clean and free of debris to ensure smooth movement.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight can cause the material to fade or crack.

Image: Close-up of the Dowinx chair's carbon fiber PU leather with exquisite stitching, highlighting material quality.
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 lever not fully engaged or gas lift faulty. | Ensure the lever is pulled completely. If the issue persists, the gas lift may need replacement. Contact support. |
| Backrest does not recline or lock. | Recline lever not fully engaged or mechanism faulty. | Ensure the recline lever is pulled correctly. Check for any obstructions in the reclining mechanism. |
| Chair is wobbly. | Loose screws or uneven assembly. | Check and tighten all screws, especially those connecting the backrest and seat base. Ensure the chair is on a flat surface. |
| Casters do not roll smoothly. | Debris caught in casters or damaged casters. | Remove any hair or debris from the casters. If damaged, casters may need replacement. |
If these solutions do not resolve the issue, please contact Dowinx customer support for further assistance.
8. Specifications
Detailed specifications for the Dowinx Gaming Chair LS-6689L:

Image: Detailed dimensions and recommended user specifications for the Dowinx Gaming Chair LS-6689L.
| Feature | Specification |
|---|---|
| Model Number | LS-6689L |
| Material | Carbon Fiber PU Leather |
| Color | Gray |
| Reclining Angle | 90-165 degrees |
| Armrests | 4D Adjustable |
| Gas Lift | SGS Class 4 Certified |
| Maximum Load Capacity | 165 kg (363 lbs) |
| Seat Cushion Thickness | 14 cm (Ultra-thick high-rebound urethane foam) |
| Product Weight | 25.5 kg |
| Package Dimensions | 83 x 61 x 33.5 cm |
| Other Functions | Ergonomic, Cushioning, Lumbar Adjustment, Reclining, Height Adjustment |
9. Warranty and Support
Dowinx provides a 1-year quality guarantee from the date of delivery for the LS-6689L Gaming Chair. This warranty covers manufacturing defects and material flaws under normal use.
If you encounter any issues or have questions regarding your product within the warranty period, please contact Dowinx customer support. Our dedicated support team is ready to assist you.
For support, please refer to the contact information provided on our official website or your purchase platform.