Einführung
This manual provides detailed instructions for the assembly, operation, maintenance, and troubleshooting of your BASETBL Ergonomic Office Chair. Please read this manual thoroughly before assembly and use to ensure proper function and safety.
Sicherheitshinweise
- Stellen Sie vor der Montage sicher, dass alle Teile vorhanden und unbeschädigt sind.
- Do not overtighten screws during assembly, especially for armrests. Tighten all screws only after all components are in place.
- Stellen Sie sich nicht auf den Stuhl.
- Benutzen Sie den Stuhl nicht, wenn Teile fehlen, beschädigt oder abgenutzt sind.
- Halten Sie Kinder vom Montagebereich fern.
- Maximale Gewichtskapazität: 150 kg.
Packungsinhalt
Verify all components are included before beginning assembly.
| Komponente | Menge |
|---|---|
| Rückenlehne | 1 |
| Sitzkissen | 1 |
| Armlehnen | 2 |
| Gasdruckfeder | 1 |
| Sternbasis | 1 |
| Rollen | 5 |
| Mechanismusplatte | 1 |
| Schrauben & Werkzeuge | 1 Satz |

Image: All main components of the BASETBL office chair laid out, including the backrest, seat cushion, armrests, gas lift, five-star base, and casters, along with the assembly tools.
Einrichtung und Montage
Follow these steps carefully for proper assembly. All necessary tools and detailed instructions are included.
- Attach the mechanism plate to the bottom of the seat cushion using the provided screws. Ensure the front of the mechanism aligns with the front of the seat.
- Befestigen Sie die Armlehnen am Sitzkissen. Important: Do not fully tighten the screws for the armrests at this stage.
- Setzen Sie die Rollen in die Löcher an den Enden der einzelnen Beine des Sternfußes ein. Drücken Sie sie fest an, bis sie einrasten.
- Setzen Sie den Gasliftzylinder in die mittlere Öffnung des Sternfußes ein.
- Carefully place the assembled seat and armrest onto the gas lift cylinder.
- Attach the backrest to the seat and armrests.
- Once all components are in place, tighten all screws, especially those for the armrests, to secure the chair.
Installation Tip: Don't tighten the screws while installing the armrests. Assemble all components first, then tighten all screws at the end.
Bedienungsanleitung
Höhenverstellung
To adjust the chair height, pull the lever located under the seat upwards while applying or releasing Körpergewicht. Den Hebel in der gewünschten Höhe loslassen.
Neigungsfunktion
The chair features a 90-110° tilt function. Pull the lever outwards to unlock the tilt mechanism, allowing the chair to recline. Push the lever inwards to lock the chair in an upright position.

Image: Visual representation of the chair's adjustable tilt range (90-110 degrees) and the location of the height and tilt tension adjustment levers.

Image: Icons depicting the synchromechanics of the chair, including controls for tilting tension, locking/unlocking the tilt, and height adjustment.
Ergonomische Unterstützung
The chair is designed with an S-shaped ergonomic curve to fit the spine's natural curve, providing all-day support for the neck, lumbar, and thickened leg support.

Image: A skeletal diagram overlaid with the chair's profile, demonstrating how the S-shaped ergonomic design supports the neck, lumbar region, and provides thickened leg support for optimal posture.
Wartung
- Regularly check all screws and bolts to ensure they are tight. Retighten as necessary.
- Clean the PU leather and mesh fabric surfaces with a soft, damp Tuch. Vermeiden Sie aggressive Chemikalien oder Scheuermittel.
- Periodically inspect casters for debris (hair, dust) and clean them to ensure smooth rotation.
- Um eine Materialbeeinträchtigung zu vermeiden, sollte der Stuhl weder direkter Sonneneinstrahlung noch extremen Temperaturen ausgesetzt werden.
Fehlerbehebung
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Der Stuhl wackelt oder ist instabil | Lose Schrauben | Prüfen und ziehen Sie alle Montageschrauben fest, insbesondere jene, die Sitzfläche, Rückenlehne und Armlehnen verbinden. |
| Der Stuhl ist nicht höhenverstellbar. | Gas lift issue or lever malfunction | Stellen Sie sicher, dass der Höhenverstellhebel vollständig eingerastet ist. Sollte das Problem weiterhin bestehen, muss die Gasdruckfeder möglicherweise ausgetauscht werden. |
| Chair does not tilt or lock | Tilt mechanism locked or tension too high | Pull the tilt lever outwards to unlock. Adjust the tilt tension knob (if present) to a lower setting. |
| Die Rollen rollen nicht reibungslos | Fremdkörper in den Rollen oder beschädigte Rollen | Entfernen Sie Haare und Schmutz von den Lenkrollen. Ersetzen Sie beschädigte Rollen. |
| Quietschgeräusche | Lose Verbindungen oder Reibung | Tighten all screws. Apply a small amount of silicone spray to moving parts if necessary, avoiding contact with upholstery. |
Technische Daten
- Modell: UKCHAF003B
- Farbe: Schwarz
- Produktabmessungen: 67 x 67 x 118.11 cm (Tiefe x Breite x Höhe)
- Artikelgewicht: 13.7 kg
- Maximale Tragfähigkeit: 150 kg
- Sitzhöhenbereich: 46-56 cm (from floor)
- Primärmaterial: Faux Leather (PU leather), Breathable Mesh Fabric, High-density Foam
- Rahmenmaterial: Legierter Stahl
- Gaslift: SGS-certified 3-level gas lift
- Base: Durable metal 5-star base, 1,136 kg static load tested
- Rollen: 360° PU silent casters
- Montage erforderlich: Ja
- Garantie: 1 Jahr Herstellergarantie

Image: Technical drawing with detailed dimensions of the BASETBL office chair, including overall height (108-118cm), seat height (46-56cm), seat width (52cm), and overall depth (67cm).

Image: A diagram illustrating the key dimensions and recommended weight capacity (150KG / 330LBS) for the Basetbl F003 chair, along with a recommended user height of up to 189CM.

Image: A series of icons and images highlighting the chair's robust components and features, including SGS certified gas lifts, BIFMA tested chassis, sturdy metal legs, controls for height and tilt, and noiseless casters.
Garantie und Support
Your BASETBL Office Chair comes with a 1 Jahr Herstellergarantie. Additionally, enjoy peace of mind with our 30-day return and exchange policy, plus free part replacements within 2 years.
For any after-sales issues or support, please go to your Amazon account:
- Navigieren Sie zu „Ihre Bestellungen“.
- Find the order ID for your BASETBL Office Chair.
- Click on "Contact the Seller".
We aim to provide an efficient and professional solution within 24 hours.
About BASETBL
BASETBL is dedicated to researching and delivering exceptionally comfortable, high-quality ergonomic office chairs. With expertise in ergonomics, we seamlessly integrate intricate details, combining elements of environment, health, and fashion in our designs.

Image: Infographic detailing BASETBL's history and achievements, including 22 years focusing on ergonomic chairs, over 10 million global users, 1587 R&D patents, and 108 patents related to lumbar spine support.

Image: Visual representation of BASETBL's design awards, including the Red Dot Award 2018, iF Design Award 2018, and German Design Award.

Image: A laboratory scene with a technician, symbolizing BASETBL's dedication to rigorous testing and quality control in their own lab.