Introduction
This manual provides detailed instructions for the assembly, operation, maintenance, and troubleshooting of your Amazon Basics Ergonomic High-Back Desk Chair, Model 51515. Please read this manual thoroughly before assembly and use to ensure proper function and longevity of your chair.
The Amazon Basics Ergonomic High-Back Desk Chair is designed for comfort and support during extended periods of use. It features a breathable mesh seat and back, adjustable components, and smooth mobility.
Front view of the Amazon Basics Ergonomic High-Back Desk Chair.
Safety Information
- Ensure all components are securely fastened before use. Regularly check and tighten fasteners as needed.
- Do not stand on the chair.
- Do not use the chair if any parts are damaged or missing. Contact customer support for replacement parts.
- Maximum weight recommendation for this chair is 275 pounds (124.7 kg). Do not exceed this limit.
- Keep children away from the chair during assembly to prevent injury.
- Use the chair on a level surface to prevent tipping.
Package Contents
Verify that all parts are present before beginning assembly. If any parts are missing or damaged, do not proceed with assembly. Contact customer support for assistance.
- Casters (5)
- Base (1)
- Gas Lift (1)
- Seat Plate (1)
- Seat (1)
- Back Frame with Arms (1)
- Headrest (1)
- Hardware Pack (screws, Allen wrench) (1)
All chair components, including the base, casters, gas lift, seat, backrest with arms, headrest, and hardware.
Assembly Instructions
Assembly typically takes approximately 20 minutes. All necessary tools are included in the hardware pack.
- Attach Casters to Base: Insert each of the five casters into the holes at the end of each leg of the chair base. Push firmly until they click into place.
- Insert Gas Lift: Place the gas lift cylinder into the center hole of the assembled base.
- Attach Seat Plate to Seat: Align the seat plate with the pre-drilled holes on the underside of the seat. Secure it using the provided screws and Allen wrench. Ensure the front of the seat plate faces the front of the seat.
- Attach Back Frame with Arms to Seat: Align the back frame, which includes the armrests, with the corresponding holes on the underside and rear of the seat. Secure it using the provided screws and Allen wrench.
- Attach Headrest: Slide the headrest into the designated slot at the top of the back frame. Adjust to your desired height and secure if applicable.
- Connect Seat Assembly to Base: Carefully place the assembled seat onto the gas lift cylinder, ensuring it is centered. Apply downward pressure to secure the connection.
Illustration of attaching the backrest and armrests to the chair seat during assembly.
Operating Instructions
Chair Adjustments
- Height Adjustment: To raise the seat, lift the lever located under the right side of the seat while taking your weight off the chair. To lower the seat, lift the lever while seated. Release the lever at the desired height.
- Tilt Function: The chair features a tilt mechanism. Pull the lever on the left side of the seat outwards to unlock the tilt function, allowing the chair to recline. Push the lever inwards to lock the chair in an upright position. The tension of the tilt can be adjusted by rotating the round knob located under the front of the seat.
- Flip-Up Armrests: The armrests can be flipped up and out of the way. Simply lift each armrest upwards until it locks into its vertical position. To return them, pull them down.
- Headrest Adjustment: The headrest can be adjusted vertically to provide optimal neck and head support. Gently pull or push the headrest up or down to your preferred position.
- Swivel and Mobility: The chair is equipped with 360-degree swivel mobility and caster wheels for easy movement around your workspace.
The chair positioned in a typical office environment, demonstrating its mobility and design.
Care and Maintenance
- Cleaning: Spot clean the mesh and other surfaces with a damp cloth and mild detergent. Avoid abrasive cleaners or solvents.
- Inspection: Periodically inspect all bolts and screws to ensure they are tight. Retighten as necessary.
- Moving the Chair: When moving the chair, lift it rather than dragging it to prevent damage to the casters or base.
- Avoid Direct Sunlight: Prolonged exposure to direct sunlight may cause the mesh material to fade or degrade.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Chair does not adjust height | Gas lift not engaged or damaged. | Ensure the height adjustment lever is fully pulled. If the issue persists, the gas lift may need replacement. |
| Chair wobbles or feels unstable | Loose screws or uneven assembly. | Check all assembly screws and tighten them securely. Ensure the chair is on a flat, even surface. |
| Casters do not roll smoothly | Debris in casters or damaged casters. | Clean any hair or debris from the caster wheels. If damaged, casters may need replacement. |
| Backrest feels loose or wobbly | Backrest attachment screws are loose. | Tighten the screws connecting the back frame to the seat. |
Product Specifications
- Brand: Amazon Basics
- Model Name: Ergonomic mesh chair
- Model Number: 51515
- Color: Black
- Product Dimensions (D x W x H): 25.5" x 26.25" x 49.25" (64.77 cm x 66.68 cm x 125.09 cm)
- Maximum Weight Recommendation: 275 Pounds (124.7 kg)
- Item Weight: 34.3 pounds (15.56 kg)
- Back Style: Solid Back (Mesh)
- Special Feature: Adjustable, Durable
- Recommended Uses: Office, Home Office
- UPC: 194696012925
Detailed dimensions of the chair, including height, width, and depth.
Warranty Information
This Amazon Basics Ergonomic High-Back Desk Chair is backed by an Amazon Basics 1-year limited warranty. This warranty covers defects in materials and workmanship under normal use. For full terms and conditions, please refer to the warranty documentation included with your purchase or contact Amazon Basics customer support.
Customer Support
For any questions, missing parts, or warranty claims, please contact Amazon Basics customer support. You can typically find contact information on the Amazon website or through your purchase order details.
Please have your product model number (51515) and proof of purchase ready when contacting support.
