LEMBERI AMS-PUOF
LEMBERI PU Leather Armless Office Desk Chair
Model: AMS-PUOF
User Manual
Important Safety Information
Please read all instructions carefully before assembly and use. Keep this manual for future reference.
- Maximum weight capacity: 350 lbs. Do not exceed this limit.
- Ensure all screws and connections are securely tightened before use.
- Use the chair on a flat, stable surface to prevent tipping.
- Avoid standing on the chair or using it as a step stool.
- Keep small parts away from children during assembly.
Product Overview
The LEMBERI PU Leather Armless Office Desk Chair is designed for comfort and versatility in various settings, from home offices to vanity areas. Its thoughtful design prioritizes ergonomic support and user comfort.
Key Features:
- Armless Design: Ideal for modern offices and homes, allowing for greater freedom of movement and fitting into various spaces.
- No Wheels: Features a stable cross-shaped base with non-slip natural rubber feet pads to prevent scratching floors and ensure stability.
- Ergonomic Support: Imitation shell curved backrest and U-shaped seat conform to the spine's natural curve, promoting correct posture and reducing fatigue.
- Comfortable Seating: Padded with high-elastic foam (density ≥30KG/M³, rebound rate 42%-53%) and upholstered in durable PU leather for all-day comfort. The wide seat accommodates various sitting positions, including criss-cross.
- Adjustable Height: Easily adjust seat height from 15.7 to 20.5 inches using a one-touch lever.
- Rocking Function: Offers a tilt angle of 105-120 degrees, adjustable via a black round knob under the seat.
- 360° Swivel: Allows for easy rotation and access to different areas without moving the base.
Product Dimensions:
The chair measures approximately 19.3"D x 25.6"W x 36.2"H. The seat back interior height is 16.3 inches, seat height is 15.7 inches, and seat depth is 17.3 inches. The chair weighs 28.7 pounds.

Figure 1: Detailed product dimensions for optimal fit.
Setup and Assembly
The LEMBERI Office Desk Chair is designed for quick and straightforward assembly, typically taking 15-20 minutes. All necessary screws and tools are included in the compact packaging.
Assembly Steps:
- Unpack all components and verify against the included parts list.
- Attach the cross-shaped base to the gas lift cylinder. Ensure it is firmly seated.
- Connect the seat plate mechanism to the underside of the seat cushion using the provided screws.
- Insert the gas lift cylinder into the central hole of the seat plate mechanism.
- Attach the backrest to the seat assembly using the remaining screws. Ensure all connections are tight.
- Test the chair for stability and proper function of the height adjustment and rocking mechanisms before regular use.

Figure 2: The sturdy metal base with non-slip pads ensures stability and floor protection.
Operating Instructions
This chair offers several adjustable features to enhance your comfort and productivity.
Height Adjustment:
- To raise the seat, lift the one-touch height adjustment lever while standing.
- To lower the seat, lift the lever while seated.
- The seat height can be adjusted between 15.7 and 20.5 inches.
Rocking Function and Tilt Tension:
- To enable the rocking function, pull out the height adjustment lever. The chair will now tilt between 105 and 120 degrees.
- To lock the chair in an upright position, push the height adjustment lever inwards.
- Adjust the black round knob under the seat. Turn clockwise to increase tension (less rocking) and counter-clockwise to decrease tension (more rocking).

Figure 3: Controls for height adjustment and rocking function.
Swivel Function:
- The chair features a 360-degree swivel, allowing you to rotate freely while seated.

Figure 4: The wide seat design provides ample space for various sitting postures.
Maintenance
Proper care will extend the life and appearance of your LEMBERI chair.
Cleaning:
- For general cleaning, wipe the PU leather surface with a soft, damp cloth.
- Avoid using harsh chemicals, abrasive cleaners, or solvents, as these can damage the upholstery.
- For spills, blot immediately with a clean, dry cloth.
General Care:
- Periodically check all screws and bolts to ensure they remain tight. Re-tighten as necessary.
- Avoid prolonged exposure to direct sunlight or extreme temperatures, which can cause the PU leather to fade or crack.
- Do not drag the chair; lift it when moving to prevent damage to the base or floor.
Troubleshooting
If you encounter any issues with your LEMBERI chair, refer to the common problems and solutions below.
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair is wobbly or unstable. | Loose screws or uneven surface. | Check and tighten all assembly screws. Ensure the chair is on a flat, level floor. |
| Height adjustment not working. | Gas lift cylinder issue or lever not engaged. | Ensure the lever is fully engaged. If the issue persists, the gas lift cylinder may need replacement. Contact customer support. |
| Rocking function is too stiff or too loose. | Tilt tension knob adjustment. | Adjust the black round knob under the seat. Turn clockwise for stiffer rocking, counter-clockwise for looser rocking. |
| Squeaking noises. | Loose connections or friction. | Tighten all screws. Apply a small amount of silicone lubricant to moving parts if necessary. |
Specifications
| Attribute | Detail |
|---|---|
| Brand | LEMBERI |
| Model Number | AMS-PUOF |
| Color | White |
| Product Dimensions | 19.3"D x 25.6"W x 36.2"H |
| Size | Mid Back No Wheels |
| Back Style | Solid Back |
| Special Feature | Upholstered Leather, Adjustable Height, Swivel, Seat Lock |
| Product Care Instructions | Wipe Clean |
| Recommended Uses | Office, Bedroom, Study, Living Room, Vanity |
| Maximum Weight Recommendation | 350 Pounds |
| Item Weight | 28.7 pounds |
| Material | PU Leather, Foam Fill |
| First Available Date | December 16, 2022 |
Warranty and Support
For warranty information or technical support, please contact LEMBERI customer service directly. Refer to the product packaging or the official LEMBERI website for contact details.
You can also visit the official LEMBERI store for more information: LEMBERI Store
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