Amazon Basics Ergonomic Office Chair

User Manual and Assembly Guide

1. Important Safety Instructions

Read these instructions carefully and retain them for future use. If the product is passed to a third party, these instructions must be included.

  • This chair is intended for office use. Maximum user weight: 125 kg.
  • Complies with standard EN 1335-2.
  • Only trained personnel should replace or repair seat height adjustment components with energy accumulators.
  • Product supplied with casters suited for carpets. Soft tread casters are recommended for hard surfaces.
  • For office use only.
  • Be cautious when opening/closing the product. Keep hands away from folding mechanisms to prevent finger pinching.
  • Product must be assembled by an adult.
  • Keep children and pets away during assembly.
  • Do not let children climb on or play with the product.
  • Always use the product on a firm, level surface.
  • Do not use if any parts are missing, damaged, or worn.
  • To avoid scratching the floor, assemble on a soft surface like a carpet.
  • Do not over-tighten fasteners.
  • Regularly inspect the product for wear and tear. Stop use at the first sign of damage or if parts become detached.
  • Do not use power tools for assembly, as they may strip or damage parts.
  • Do not stand on the seat.
  • Do not sit on the armrests.
  • Keep sharp objects away from upholstery.
  • Always assemble the product completely.

2. Before First Use

⚠️ DANGER Risk of suffocation! Keep packaging materials away from children and pets.

  • Remove all packing materials.
  • Remove and review all components before assembly.
  • Check the product for transport damages.

3. Assembly

For additional illustrated assembly steps, refer to the end of the written instructions.

Delivery Content:

  • Part A: Backrest (x 1)
  • Part B: Seat (x 1)
  • Part C: Armrests (x 2)
  • Part D: Mechanism (x 1)
  • Part E: Gas Lift Cylinder (x 1)
  • Part F: Chair Base (5-star) (x 1)
  • Part G: Casters/Wheels (x 5)
  • Part H: Screws (1/4 x 7/4") (x 4)
  • Part I: Screws (1/4 x 1") (x 8)
  • Part J: Screws (1/4 x 3/4") (x 2)
  • Part K: Allen Wrench (5 mm) (x 1)
  • Part L: Various Screws (x 14)

Assembly Steps:

  1. Step 1: Attach the five casters (G) to the chair base (F). Insert the gas lift cylinder (E) into the center of the base. [Diagram shows base, casters, gas lift].
  2. Step 2: Attach the two armrests (C) to the underside of the seat (B) using screws (I, L) and the Allen wrench (K). [Diagram shows seat, armrests, screws, wrench].
  3. Step 3: Attach the mechanism (D) to the underside of the seat (B) using screws (I, J, L). Arrows indicate attachment points and tightening. [Diagram shows seat, mechanism, screws].
  4. Step 4: Attach the backrest (A) to the mechanism (D) using screws (H, L). Arrows indicate attachment points. [Diagram shows backrest, mechanism, screws].
  5. Step 5: Place the assembled seat/backrest unit onto the gas lift cylinder (E) in the chair base. [Diagram shows unit being lowered onto gas lift].
  6. Step 6: Adjust armrest height by pressing a lever under the armrest. [Diagram shows hand pressing lever with [up/down arrow] symbols].
  7. Step 7: Adjust seat height using the lever under the seat. [Diagram shows lever with [up/down arrow] symbols].
  8. Step 8: Adjust tilt tension using the knob under the seat, marked with '+' for tighter and '−' for looser. [Diagram shows knob with + and - symbols].
  9. Step 9: Engage or disengage the tilt lock by operating the lever, indicated by a lock symbol [?]. [Diagram shows lever with lock symbol].

4. Cleaning and Maintenance

4.1 Cleaning

  • Wipe the product with a soft, slightly damp cloth.
  • Wipe dry after cleaning.
  • Regular vacuuming or light brushing helps remove dirt and prevent soil build-up.
  • Never use corrosive detergents, wire brushes, abrasive scourers, or metal/sharp utensils.

4.1.1 Fabric Upholstered Furniture Care Instructions

  • Vacuum regularly. Small dust particles are abrasive and can wear furniture prematurely.
  • Clean spills immediately to prevent staining. Gently wipe spills with a soft, clean cloth dampened with lukewarm water. Allow to dry and brush lightly.
  • Never use harsh chemicals or solvents, as they may damage the fabric.
  • If using a professional product, test on an inconspicuous area first for discoloration or shrinking.
  • Marks from pens, crayons, and ink markers are difficult to remove. Consult a professional for permanent stains.

4.2 Storage

  • Ensure the product is clean and dry before storage.
  • Wrap in protective material (e.g., moving blankets, bubble wrap, furniture pads) to prevent scratches.
  • Store in a dry, cool place, avoiding damp or humid areas or those with temperature fluctuations.
  • Cover with a breathable cover (e.g., cotton sheet) to protect from dust and moisture. Avoid plastic covers.
  • Avoid stacking heavy items on top of each other.
  • If the product can be disassembled, take it apart before storing. Label parts for reassembly.
  • Store upright if possible to save space.
  • Check the product regularly during storage.
  • Store in a safe place out of reach of children and pets.

4.3 Maintenance

  • Any other servicing should be performed by a professional repair center.
  • Regularly check components to ensure all screws and bolts are tightened.
  • Keep the product away from direct heat and sunlight. Prolonged exposure can cause damage or color fading.
  • Periodically (every 90 days) ensure screws are tight.

5. Disposal

Dispose of the product according to local regulations. Consult local authorities if in doubt. ♻️

6. Specifications

Net weight: approx. 11 kg

Dimensions (D x W x H): approx. 58 x 63.5 x 91 cm

6.1 Importer Information

For EU:

Amazon EU S.à r.l., 38 avenue John F. Kennedy, L-1855 Luxembourg

Business Reg. (EU): 134248

For UK:

Amazon EU SARL, UK Branch, 1 Principal Place, Worship St, London EC2A 2FA, United Kingdom

Business Reg. (UK): BR017427

7. Feedback and Help

We would love to hear your feedback. Please consider writing a customer review.

For help with your Amazon Basics product, visit the website:

Models: B09B83MW65 Ergonomic Office Chair, B09B83MW65, Ergonomic Office Chair, Office Chair, Chair

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