1. Introduction
Welcome to your new SENSE7 Ergonomic Office Chair. This manual provides essential information for assembly, operation, maintenance, and troubleshooting to ensure optimal use and longevity of your chair. Please read these instructions carefully before assembly and use.
2. Safety Information
- Read all instructions before assembly and use.
- Do not exceed the maximum weight capacity of 150 kg (330 lbs).
- Ensure all screws and bolts are securely tightened before use. Periodically check and re-tighten as needed.
- Keep children and pets away during assembly.
- Use the chair on a flat, stable surface.
3. Package Contents
Before assembly, verify that all components are present. Refer to the assembly diagram for a complete list of parts.

An image of the fully assembled SENSE7 ergonomic office chair in grey, showcasing its design and features.
4. Assembly Instructions
Follow these steps carefully to assemble your SENSE7 ergonomic office chair. It is recommended to have two people for assembly.
- Attach the casters to the chair base.
- Insert the gas lift cylinder into the center of the base.
- Attach the seat mechanism to the bottom of the seat cushion.
- Place the seat assembly onto the gas lift cylinder.
- Attach the backrest to the seat mechanism.
- Install the armrests and headrest.

A technical diagram illustrating the various dimensions of the SENSE7 ergonomic office chair, including height, width, and depth measurements for the seat, backrest, and headrest.
5. Operating Instructions (Adjustments)
5.1 Chair Height Adjustment
To adjust the chair height, pull the lever located under the seat upwards while applying or releasing body weight.
5.2 Backrest Recline
The backrest can be reclined to three positions: 90°, 103°, and 123°. Use the recline lever to select your desired angle.

An illustration demonstrating the recline function of the SENSE7 office chair, showing the backrest adjusting from an upright 90-degree position to a relaxed 123-degree angle. An inset highlights the 5.3cm height adjustment for lumbar support.
5.3 Lumbar Support Adjustment
The lumbar support is adjustable in height by 5.3 cm to provide optimal spinal support. Adjust it to fit the natural curve of your lower back.
5.4 Armrest Adjustment
The 3D armrests are adjustable in height (9.8 cm), depth (4.2 cm), and angle (up to 51°) for personalized comfort and support.

An image detailing the adjustable features of the SENSE7 office chair, including the headrest with 8.6cm height adjustment and the 3D armrests with adjustments for height (9.8cm), depth (4.2cm), and angle (51 degrees).
5.5 Headrest Adjustment
The headrest can be adjusted in height by 8.6 cm to provide comfortable neck and shoulder support.
5.6 Silent PU Wheels
The 60mm PU wheels are designed for smooth and silent movement on various floor types, including hard floors and carpets, without causing scratches.

An image illustrating the robust Class 3 gas lift for smooth height adjustment and the 60mm silent PU wheels, designed for quiet movement and floor protection on both carpeted and marble surfaces.
6. Maintenance
- Clean the chair with a damp cloth. Avoid harsh chemicals or abrasive cleaners.
- Regularly check all screws and bolts to ensure they are tight. Re-tighten if necessary.
- Keep the mesh fabric clean by vacuuming or wiping with a soft cloth.
- Do not expose the chair to direct sunlight for extended periods to prevent material degradation.
7. Troubleshooting
7.1 Chair Sinks or Does Not Hold Height
This may indicate an issue with the gas lift cylinder. Ensure the height adjustment lever is fully engaged. If the problem persists, the gas lift may need replacement.
7.2 Squeaking Noises
Check all bolted connections and tighten them. A small amount of silicone spray can be applied to moving parts if needed, avoiding contact with fabric or mesh.
7.3 Wheels Not Rolling Smoothly
Check for debris (hair, dust) caught in the wheels. Clean them thoroughly. Ensure the chair is not overloaded.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 15294524 |
| Brand | SENSE7 |
| Color | Grey |
| Material | Nylon, Mesh fabric |
| Product Dimensions (D x W x H) | 51 x 72.5 x 121.8 cm |
| Product Weight | 16.12 kg |
| Maximum Weight Recommendation | 150 kg |
| Backrest Recline | 90°, 103°, 123° |
| Lumbar Support Adjustment | 5.3 cm height |
| Armrest Adjustment | 9.8 cm height, 4.2 cm depth, 51° angle |
| Headrest Adjustment | 8.6 cm height |
| Gas Lift Class | Class 3 |
| Wheel Type | 60mm PU |

A side view of the SENSE7 ergonomic office chair in grey, highlighting its ergonomic curves and mesh backrest.
9. Warranty and Support
For warranty information or technical support, please contact SENSE7 customer service. Keep your purchase receipt as proof of purchase.
For further assistance, please visit our official website or contact our support team through the retailer where the product was purchased.