Amazonベーシック ミッドバック オフィス コンピュータ タスクデスクチェア (モデル GF-9390M-1) 取扱説明書

導入

This manual provides essential instructions for the assembly, operation, and maintenance of your Amazon Basics Mid-Back Office Computer Task Desk Chair. Please read all instructions carefully before assembly and use to ensure proper function and safety.

安全情報

警告：

• Always follow the assembly instructions provided in this user manual to ensure safe use.
• 最大重量容量 275 ポンド (124.74 kg) を超えないようにしてください。
• Be cautious of the swivel feature to prevent tripping.
• Ensure all screws are fully tightened before use. Periodically check and re-tighten all fasteners.

パッケージ内容

組み立てを始める前に、すべてのコンポーネントが揃っていることを確認してください。

• シートクッション
• バッククッション
• Gas Lift (Cylinder)
• Hardware (Screws, Hex Tool)
• Base (5-point star base)
• アームレスト (2)
• キャスター（5）
• Mechanism (for seat height and tilt)

セットアップと組み立て

Follow these steps to assemble your office chair. An assembly video is provided for visual guidance.

1. Insert Casters: Firmly press each of the five casters (wheels) into the holes at the end of each leg of the 5-point star base. Ensure they are securely seated.
2. Insert Cylinder: Place the gas lift cylinder into the center hole of the assembled base. Ensure the narrower end of the cylinder points upwards.
3. シートに機構を取り付ける: Align the seat mechanism with the pre-drilled holes on the underside of the seat cushion. Use the provided screws (typically 'A' type) and the hex tool to attach it. Do not fully tighten yet.
4. Place Seat on Cylinder: Carefully place the assembled seat (with mechanism attached) onto the gas lift cylinder. The cylinder should fit snugly into the mechanism's central opening.
5. アームレストを取り付ける: Position the armrests on either side of the seat, aligning them with the pre-drilled holes on both the seat and the backrest. Use the appropriate screws (typically 'B' type) to attach them. Do not fully tighten these screws at this stage.
6. バックレストを取り付ける: Align the backrest with the armrests and the seat. Use the remaining screws (typically 'C' type) to secure the backrest to the armrests.
7. すべてのネジを締めます: Once all components are loosely assembled, fully tighten all screws using the hex tool. Ensure all connections are firm and secure.
8. Place Screw Caps: Cover any visible screw heads with the provided plastic caps for a finished appearance.

操作手順

Your Amazon Basics office chair offers several adjustable features for personalized comfort:

• シート高さ調整: To raise the seat, lift the lever located under the seat while taking your weight off the chair. To lower the seat, lift the lever while remaining seated. Release the lever at the desired height.
• 傾斜機能： The chair features a tilt mechanism. To enable tilting, pull the lever outwards. To lock the chair in an upright position, push the lever inwards.
• 傾斜テンション調整: Rotate the round knob located under the seat (usually at the front of the mechanism) to adjust the tension of the tilt. Turn clockwise to increase tension (making it harder to recline) and counter-clockwise to decrease tension (making it easier to recline).
• 360度回転: The chair is designed with a 360-degree swivel for easy movement and multi-tasking.
• Rolling Casters: The five-point base with casters allows for smooth-rolling mobility across various floor surfaces.

メンテナンス

To maintain the appearance and longevity of your chair:

• クリーニング： 広告できれいに拭き取るamp 布で拭いてください。合成皮革を傷める可能性のある、刺激の強い化学薬品や研磨剤入りの洗剤は使用しないでください。
• 留め具: Periodically check all screws and bolts to ensure they remain tight. Re-tighten as necessary to prevent wobbling or instability.
• キャスター： スムーズに回転するために、キャスターにゴミ（髪の毛、ほこりなど）が付着しないようにしてください。

トラブルシューティング

If you encounter issues with your chair, consider the following:

• Chair feels unstable or wobbly: Ensure all assembly screws are fully tightened. Check the gas lift cylinder for proper seating in the base and mechanism.
• Difficulty leaning back or adjusting tilt: Check the tilt tension knob under the seat. Rotate it counter-clockwise to loosen the tension. Ensure the tilt lock lever is disengaged (pulled outwards).
• Screws not fitting or stripping: Ensure you are using the correct screws for each step as indicated in the assembly instructions. Do not overtighten screws during initial assembly; tighten fully only after all components are loosely fitted. If a screw is stripped, contact customer support for replacement parts.
• キャスターがスムーズに回転しない： Inspect casters for trapped debris (hair, lint) and clean them. Ensure they are fully inserted into the base.

仕様

保証とサポート

For warranty information or technical support, please refer to the product packaging or contact Amazon Basics customer service directly. Keep your purchase receipt for any warranty claims.