1. Información importante de seguridad
Lea atentamente todas las instrucciones antes de ensamblar y usar. Conserve este manual para futuras consultas.
- Por su seguridad, no se suba a esta silla.
- Asegúrese de que todos los tornillos y pernos estén bien apretados antes de su uso.
- No utilice la silla sobre superficies irregulares.
- Maximum load capacity: 300 lbs. Do not exceed this weight limit.
- Permita errores de ±1.5 cm/0.6 pulgadas en la altura del asiento debido a las mediciones manuales.
2. Producto terminadoview
The Yaheetech Charles Ergonomic Office Chair is designed for comfort and support in your workspace. It features a breathable mesh back, adjustable lumbar support, a thick cushioned seat, and smooth-rolling casters.

Imagen: Frontal y lateral view of the Yaheetech Charles Ergonomic Office Chair in blue.
3. Configuración y montaje
Assembly is required. Please follow these steps carefully. All necessary tools are included.
3.1 Lista de verificación de componentes
- 1 x cojín de asiento
- 1 x respaldo
- 1 cilindro de elevación de gas
- 1 x Base de estrella
- 5 x ruedas
- 2 x Apoyabrazos
- 1 x Placa de mecanismo
- Herrajes (tornillos, arandelas, llave Allen)
3.2 Pasos de montaje
- Fije las ruedas a la base estelar: Insert each caster into the holes at the end of the star base legs until they click securely into place.
- Insertar elevador de gas: Coloque el cilindro de elevación de gas en el orificio central de la base de estrella ensamblada.
- Fije la placa del mecanismo al asiento: Align the mechanism plate with the screw holes on the underside of the seat cushion. Ensure the 'FRONT' marking on the mechanism faces the front of the seat. Secure with screws and washers using the provided Allen wrench.
- Fije los apoyabrazos al asiento: Align the armrests with the designated holes on the sides of the seat cushion. Secure with screws. Do not fully tighten yet.
- Fije el respaldo a los apoyabrazos: Align the backrest with the remaining holes on the armrests. Secure with screws. Once all screws are in place for the armrests and backrest, tighten them fully.
- Conecte el conjunto del asiento al elevador de gas: Carefully place the assembled seat (with armrests and backrest) onto the gas lift cylinder, ensuring it sits firmly in the mechanism plate.
Video: This video demonstrates the installation of office chair legs, which is a key step in the assembly process.
4. Instrucciones de funcionamiento
4.1 Adjustable Seat Height
To adjust the seat height, locate the lever under the seat on the right side. Pull the lever up while sitting on the chair to lower the seat, or pull it up while standing to raise the seat. Release the lever to lock the height.
4.2 Reclining Function and Tilt Tension
The chair can be tilted and leaned backward. To activate the reclining function, pull the lever under the seat outwards. To lock the chair in an upright position, push the lever inwards. The tilt tension control knob, located under the seat, allows you to adjust the resistance of the recline. Turn clockwise to increase tension (stiffer recline) or counter-clockwise to decrease tension (easier recline).
4.3 Lumbar Support
The chair features fixed lumbar support designed to follow your spine's natural curve, promoting proper posture and reducing back strain.

Imagen: Primer plano view highlighting the fixed lumbar support and breathable mesh backrest for enhanced comfort.
4.4 Ruedas giratorias y giratorias de 360°
The chair is equipped with a 360° swivel function and smooth-rolling casters, allowing for easy movement and flexibility around your workspace.
Video: This video showcases various features of the chair, including its adjustability and mobility.
Video: This video provides a durability overview of the chair's construction and materials.
5. Mantenimiento
5.1 Limpieza
Limpiar con anuncioamp paño. Evite productos químicos agresivos o limpiadores abrasivos que puedan dañar los materiales.
5.2 Controles periódicos
Revise periódicamente todos los tornillos y pernos para asegurarse de que estén bien apretados. Vuelva a apretarlos si es necesario para mantener la estabilidad y la seguridad.
6. Solución de problemas
6.1 Chair Not Adjusting Height
- Asegúrese de que la palanca de elevación de gas esté completamente acoplada.
- Check if the gas lift cylinder is properly seated in the base and mechanism plate.
6.2 Las ruedas no giran suavemente
- Check for any debris (hair, dust, etc.) caught in the casters and clean them.
- Asegúrese de que las ruedas estén completamente insertadas en la base de estrella.
6.3 Inestabilidad/tambaleo
- Verifique que todos los tornillos de montaje estén bien apretados.
- Asegúrese de que la silla esté sobre una superficie plana y uniforme.
7. Especificaciones

Image: Detailed diagram showing the dimensions of the Yaheetech Charles Ergonomic Office Chair.
| Característica | Detalle |
|---|---|
| Nombre del modelo | Carlos |
| Color | Azul |
| Material | Alloy Steel, Iron, Polypropylene, Polyester Mesh, Foam, Non-woven Fabric, Plywood |
| Dimensiones generales | 24.5″ W × 24″ D × (35-39)″ H (62.2cm W x 61cm D x 88.9-99.1cm H) |
| Altura del asiento ajustable | 18-22 "(45.7-55.9 cm) |
| Max. Load Capacity (each) | 300 libras (136 kg) |
| Características especiales | Adjustable Height, Arm Rest, Ergonomic, Lumbar Support, Reclining, Swivel |
| Estilo de espalda | Espalda abierta, malla |
| Recuento de unidades | 2.0 Count (for the 2-pack product) |
| Peso del artículo | 45.8 libras (20.8 kg) |
8. Garantía y soporte
For warranty information or customer support, please refer to the documentation included with your purchase or contact Yaheetech directly. Extended protection plans may be available for purchase.





