Introduction
Thank you for choosing the MELOKEA Ergonomic Office Chair. This manual provides detailed instructions for assembly, operation, maintenance, and troubleshooting to ensure optimal use and longevity of your chair. Please read this manual thoroughly before assembly and use.
Safety Information
- Ensure all components are present and undamaged before assembly.
- Follow assembly instructions carefully. Do not overtighten screws.
- Do not stand on the chair or use it as a step stool.
- Keep children away from the chair during assembly. Small parts may be a choking hazard.
- Use the chair on a level surface to prevent tipping.
- Do not exceed the maximum weight capacity (refer to specifications).
Assembly Instructions
Please lay out all parts on a soft, clean surface to prevent scratches. It is recommended to have two people for assembly.
- 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.
Figure 1: Inserting casters into the five-star base. Ensure each caster is fully seated.
- Insert Gas Lift: Place the gas lift cylinder into the center hole of the assembled chair base. Do not force it.
Figure 2: Positioning the gas lift cylinder into the base.
- Attach Mechanism to Seat: Align the seat mechanism with the pre-drilled holes on the underside of the seat cushion. Secure it with the provided screws, ensuring the "FRONT" arrow on the mechanism points towards the front of the seat.
Figure 3: Securing the seat mechanism to the seat bottom. Note the orientation.
- Attach Armrests to Seat: Attach the armrests to the sides of the seat cushion using the designated screws. Ensure they are firmly attached but do not overtighten.
Figure 4: Attaching the armrests to the seat.
- Attach Backrest to Seat: Align the backrest with the mounting plates on the seat mechanism. Secure with screws.
Figure 5: Connecting the backrest to the seat assembly.
- Attach Headrest: Slide the headrest into the designated slots at the top of the backrest.
Figure 6: Installing the headrest.
- Attach Footrest: Slide the footrest into its designated slot under the seat.
Figure 7: Attaching the retractable footrest.
- Connect Seat Assembly to Gas Lift: Carefully place the assembled seat and backrest onto the gas lift cylinder. Press down firmly to secure.
Figure 8: Final assembly step, placing the chair top onto the gas lift.
After assembly, test all functions and adjustments to ensure proper operation.
Operating Instructions and Adjustments
Your MELOKEA ergonomic chair offers multiple adjustment options to customize your seating experience for optimal comfort and support.
1. Seat Height Adjustment
- To Raise: While standing, pull the lever located on the right side of the seat upwards. The seat will rise automatically. Release the lever at the desired height.
- To Lower: 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.
Figure 9: Seat height adjustment lever.
2. Seat Depth Adjustment (5 cm)
- Locate the lever or button on the left side, beneath the seat. Pull or press it to unlock the seat.
- Slide the seat forward or backward to achieve the desired depth. Ensure there is a gap of about two to three fingers between the edge of the seat and the back of your knees.
- Release the lever/button to lock the seat in position.
Figure 10: Seat depth adjustment control.
3. 4D Armrest Adjustment
The armrests can be adjusted in four dimensions:
- Height: Press the button on the side of the armrest support and slide the armrest up or down. Release the button to lock.
- Forward/Backward: Slide the armrest pad forward or backward horizontally.
- Sideward (In/Out): Slide the armrest pad inwards or outwards horizontally.
- Rotation: Rotate the armrest pad left or right.
Figure 11: 4D armrest adjustment points.
4. Backrest Tilt and Lock (4 Levels)
The backrest offers four tilt lock positions: 90°, 120°, 130°, and 140°.
- To Recline: Pull the tilt lever (usually on the left side, near the seat height lever) outwards to unlock the backrest. Lean back to your desired angle.
- To Lock: Push the tilt lever inwards to lock the backrest at one of the four preset angles.
- To Return Upright: While the backrest is locked in a reclined position, lean back slightly and pull the tilt lever outwards. The backrest will return to the upright position. Push the lever inwards to lock it at 90°.
Figure 12: Backrest tilt and lock mechanism.
5. Automatic Lumbar Support
The lumbar support is designed to adapt automatically to your body shape and posture. No manual adjustment is typically required for its dynamic function. When you recline, the 30° dynamic adjustment ensures continuous support for your lower back.
6. 2D Headrest Adjustment
The headrest can be adjusted for height and rotation.
- Height: Grasp the headrest and slide it up or down to adjust its height (up to 10 cm).
- Rotation: Rotate the headrest pad forward or backward (up to 90°) to find the optimal angle for neck support.
Figure 13: Headrest height and rotation adjustment.
7. Extendable Footrest
The footrest can be extended and adjusted for angle.
- To Extend: Pull the footrest out from under the seat.
- To Adjust Angle: The footrest has two adjustable tilt angles. Adjust by lifting or lowering the end of the footrest until it locks into one of the positions.
- To Retract: Push the footrest back under the seat until it is fully stored.
Figure 14: Extendable footrest with angle adjustment.
Maintenance
Regular maintenance helps prolong the life and performance of your chair.
- Cleaning Mesh Fabric: Use a soft cloth dampened with mild soap and water to gently wipe down the mesh. Avoid harsh chemicals or abrasive cleaners. Allow to air dry completely.
- Frame Cleaning: Wipe metal and plastic parts with a soft, dry cloth.
- Check Connections: Periodically check all screws and bolts to ensure they are tight. Retighten if necessary, but do not overtighten.
- Caster Maintenance: Clean casters regularly to remove hair and debris that may hinder smooth movement.
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 lever is fully pulled. If the issue persists, the gas lift may need replacement. Contact customer service. |
| Chair is wobbly or unstable | Loose screws or uneven assembly. | Check and tighten all screws, especially those connecting the seat, backrest, and mechanism to the base. Ensure the chair is on a level surface. |
| Casters do not roll smoothly | Debris (hair, dust) caught in casters. | Turn the chair over and carefully remove any debris from the caster wheels. |
| Backrest does not lock in position | Tilt lock mechanism not engaged or damaged. | Ensure the tilt lock lever is fully pushed inwards. If still not locking, the mechanism may be faulty. Contact customer service. |
| Squeaking noises | Loose connections or friction between parts. | Tighten all screws. Apply a small amount of silicone-based lubricant to moving parts if necessary, avoiding contact with mesh fabric. |
If you cannot resolve the issue using the above solutions, please contact MELOKEA customer service for further assistance.
Specifications
| Feature | Detail |
|---|---|
| Brand | MELOKEA |
| Model Number | DECHAK045B-N4 |
| Color | Mesh Padding With Footrest (Black) |
| Product Dimensions (D x W x H) | 27.56"D x 27.56"W x 44.09"H |
| Item Weight | 39.6 pounds (18 Kilograms) |
| Included Components | Office chair (disassembled) |
| Seat Depth Adjustment | 5 cm |
| Armrests | 4D Adjustable (Height, Forward/Backward, Sideward, Rotation) |
| Backrest Tilt Lock | 4 Levels (90°, 120°, 130°, 140°) |
| Lumbar Support | Automatic 30° Dynamic Adjustment |
| Headrest | 2D Adjustable (10 cm Height, 90° Rotation) |
| Footrest | Extendable with two adjustable tilt angles |
| Material | High-quality breathable mesh fabric |
Warranty and Customer Support
MELOKEA stands by the quality of its products. Your ergonomic office chair comes with a 5-year after-sale service, exceeding industry standards.
- Defective Parts: In the event of a problem with your product, we offer a free replacement of defective accessories within the warranty period.
- Contact Support: For any questions, concerns, or warranty claims, please do not hesitate to contact our customer service team. We are committed to finding a satisfactory solution for you.
Contact Information:
- Email: support@melokea.com
- Website: www.melokea.com/support
