1. Танилцуулга
Thank you for choosing the MARK ADLER Boss 2.5 Ergonomic Office Chair. This manual provides essential information for the safe assembly, operation, and maintenance of your new office chair. Please read these instructions carefully before use and retain them for future reference.

Image 1.1: The MARK ADLER Boss 2.5 Ergonomic Office Chair in a modern office setting.
2. Аюулгүй ажиллагааны заавар
- Хамгийн их ачааллын багтаамж: Do not exceed the maximum recommended load of 130 кг (286 фунт). Exceeding this limit may cause damage to the chair and potential injury.
- Ассемблей: Ensure all components are correctly assembled and tightened according to the instructions before use. Periodically check all screws and bolts for tightness.
- Хэрэглээ: Use the chair only for its intended purpose as an office chair. Avoid standing on the chair or using it as a step stool.
- Хүүхдүүд: Keep children away from the chair during assembly. Do not allow children to play with the chair.
- Хөдөлгөөн: Be cautious when moving the chair, especially on uneven surfaces, to prevent tipping.
- Шалны хамгаалалт: The chair is equipped with wheels designed to prevent scratches on hard floors. However, consider using a chair mat for additional protection, especially on delicate surfaces.
3. Багцын агуулга
Before beginning assembly, please ensure all parts are present and undamaged. The assembly parts for the chair are typically located within the backrest packaging.
- Арын суудал
- Суудал
- Гарын түшлэг (2)
- Дугуйтай суурь
- Gas lift cylinder
- Mechanism (for height adjustment and swivel)
- Тоног төхөөрөмжийн иж бүрдэл (эрэг, угаагч, Аллен түлхүүр)
- Хэрэглэгчийн гарын авлага (энэ баримт бичиг)
4. Угсрах заавар
Assembly is straightforward and designed to be a pleasant experience. Follow these steps carefully.
4.1. Бүрэлдэхүүн хэсэг дууссанview болон Хэмжээ

Image 4.1: Detailed dimensions of the MARK ADLER Boss 2.5 chair, showing height, width, and depth measurements for various components.
4.2. Алхам алхмаар угсралт
- Дугуйг сууринд бэхлэх: Insert the five wheels into the holes at the end of each leg of the chair base. Push firmly until they click into place.
- Хийн өргөгчийг оруулах: Хийн өргөх цилиндрийг угсарсан суурийн төв нүхэнд хийнэ.
- Механизмыг суудалд бэхлэх: Align the mechanism with the screw holes on the underside of the seat. Ensure the lever for height adjustment is on the right side when facing the front of the seat. Secure with screws and tighten using the provided Allen key.
- Гарын түшлэгийг суудалд бэхлэх: Secure the armrests to the sides of the seat using the appropriate screws. Do not overtighten initially.
- Арын түшлэгийг суудал болон гарын түшлэгт бэхлэх: Connect the backrest to the seat and armrests. Once all connections are made, tighten all screws on the armrests and backrest securely.
- Суудлын угсралтыг хийн өргөгчтэй холбох: Carefully place the assembled seat and backrest onto the gas lift cylinder, ensuring it is centered. Apply gentle downward pressure to secure it.

Зураг 4.2: Урд view of the fully assembled MARK ADLER Boss 2.5 Office Chair.
5. Ашиглалтын заавар
Your MARK ADLER Boss 2.5 chair is designed for ergonomic comfort and ease of use.
5.1. Өндөр тохируулга
To adjust the seat height, pull the lever located on the right side of the seat upwards. While pulling the lever:
- To raise the seat, lift your weight off the seat.
- To lower the seat, remain seated and apply downward pressure.
Release the lever once the desired height is reached. The gas lift allows for a height adjustment range of up to 10 cm.

Image 5.1: Close-up of the height adjustment lever.
5.2. Эргэдэг функц
The chair features a 360-degree swivel function, allowing for easy rotation and access to different areas of your workspace without needing to move the entire chair.
5.3. Ergonomic Back Support
The backrest is designed to provide ergonomic support, promoting a healthy posture during extended periods of sitting. The contoured shape helps maintain the natural curve of your spine.

Image 5.2: The ergonomic backrest designed for optimal support.
5.4. Padded Armrests
The chair is equipped with padded armrests for enhanced comfort, reducing strain on your shoulders and arms during use.

Image 5.3: Close-up of the comfortable padded armrests.
5.5. Smooth-Rolling Casters
The durable casters allow for smooth movement across various floor types without causing scratches, making it suitable for both carpeted and hard surfaces.

Image 5.4: The stable base with smooth-rolling casters.
6. Засвар үйлчилгээ, арчилгаа
- Цэвэрлэгээ: Ерөнхий цэвэрлэгээнд зориулж сандлыг зөөлөн, d-ээр арчинаamp cloth. For fabric areas, use a mild upholstery cleaner if necessary, and test on an inconspicuous area first. Avoid harsh chemicals or abrasive cleaners.
- Шалгалт: Periodically inspect all bolts and screws to ensure they remain tight. Re-tighten if necessary to maintain stability and safety.
- Нарны шууд тусгалаас зайлсхийх: Нарны шууд тусгалд удаан хугацаагаар өртөх нь даавууг бүдгэрүүлэхэд хүргэдэг.
- Жин хуваарилалт: Distribute your weight evenly on the chair to prevent undue stress on components.
7. Алдаа засах
- Сандал хашгирах: If the chair begins to squeak during movement, check all assembly screws and bolts and tighten them. A small amount of silicone-based lubricant can be applied to moving parts (e.g., the mechanism or gas lift connection points) if the issue persists, avoiding contact with fabric.
- Сандал өндрийг тохируулдаггүй: Ensure the height adjustment lever is fully engaged. Check if the gas lift cylinder is properly seated in the mechanism and the base. If the issue persists, the gas lift may need replacement.
- Сандал тогтворгүй санагдаж байна: Verify that all screws and bolts are securely tightened. Ensure the base and casters are correctly assembled and not damaged.
- Кастерууд жигд өнхрөхгүй байна: Check for any debris (hair, dust) caught in the casters and remove them. Clean the casters regularly.
8. Техникийн үзүүлэлтүүд
| Онцлог | Тодорхойлолт |
|---|---|
| Брэнд | МАРК АДЛЕР |
| Загварын нэр | Дарга 2.5 |
| Өнгө | Хар |
| Материал | Полиуретан (PU) |
| Бүтээгдэхүүний хэмжээ (D x W x H) | 59 x 60 x 100 см |
| Зүйлийн жин | 11 кг |
| Санал болгож буй хамгийн их ачаалал | 130 кг |
| Онцлог шинж чанарууд | Ergonomic, Adjustable Height, Rolling |
| Угсрах шаардлагатай | Тиймээ |
| Тавилгын суурийн хөдөлгөөн | Эргэдэг |
| Гарын хэв маяг | Жийргэвчтэй |
9. Баталгаат хугацаа ба дэмжлэг
For warranty information or if you have any questions, concerns, or require assistance with your MARK ADLER Boss 2.5 office chair, please contact our dedicated customer service team. Refer to your purchase documentation for specific warranty terms and contact details.
Our customer service team is available to help you with any further inquiries.