1. Introduktion
Thank you for choosing the tectake 403457 Racing Mike 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 tectake Racing Mike Office Chair in a typical office or gaming environment, showcasing its design and ergonomic features.
2. Sikkerhedsoplysninger
Always ensure stable placement of the chair on a flat, even surface. Do not exceed the maximum load capacity of 100 kg (220 lbs) for safe use. Failure to adhere to these guidelines may result in injury or damage to the product.
- Hold børn og kæledyr væk fra stolen under montering.
- Stå ikke på stolen.
- Undgå at placere tunge genstande på stolens ryglæn eller armlæn.
- Kontrollér regelmæssigt alle skruer og forbindelser for at sikre, at de er tætte.
3. Produktfunktioner
The tectake Racing Mike Office Chair is designed for comfort and functionality, featuring:
- Extra thick padding: Provides a soft and comfortable seating experience, ideal for extended periods of use.
- Textile inserts: Strategically placed to prevent sweating and enhance breathability.
- Height-adjustable gas lift: A fully height-adjustable, safe gas pressure spring allows for easy customization of seat height.
- Tilt mechanism: Infinitely adjustable tilt mechanism, adaptable to individual body weight for personalized comfort.
- Smooth-running double wheels: Five durable, floor-friendly double wheels ensure smooth mobility across various surfaces.

Image 3.1: Detail of the chair's headrest and upper backrest, highlighting the thick padding and breathable textile inserts.

Image 3.2: Detail of the chair's armrest and seat, showing the ergonomic design and additional textile inserts for comfort.
4. Opsætning og montering
Assembly of the tectake Racing Mike Office Chair typically involves a few straightforward steps. Ensure all components are present before beginning.
- Udpak komponenter: Tag forsigtigt alle dele ud af emballagen, og læg dem på en ren, blød overflade for at forhindre ridser.
- Fastgør hjul til basen: Insert the five smooth-running double wheels into the openings of the star-shaped base until they click securely into place.
- Indsæt gasløft: Placer gasløftecylinderen i det centrale hul på den samlede base.
- Samling af sæde og ryglæn: Attach the backrest to the seat mechanism using the provided screws. Ensure all screws are tightened firmly.
- Fastgør armlæn: Secure the armrests to the seat and backrest assembly using the designated screws.
- Monter sæde på gaslift: Placer forsigtigt det samlede sæde og ryglæn på gasløftcylinderen, og sørg for, at det er centreret og stabilt.
- Endelig kontrol: Kontroller, at alle forbindelser er sikre, og at stolen er stabil, før den tages i brug.

Image 4.1: An illustrative diagram detailing the dimensions and key components of the chair, useful for assembly and understanding its structure.
5. Betjeningsvejledning
Your tectake Racing Mike Office Chair offers several adjustment options for optimal comfort.
5.1. Sædehøjdejustering
Sådan justeres sædehøjden:
- For at hæve: While standing, pull the lever located under the right side of the seat upwards. The seat will rise automatically. Release the lever at the desired height.
- For at sænke: Mens du sidder, træk håndtaget, der er placeret under højre side af sædet, opad. Sædet sænkes. Slip håndtaget i den ønskede højde.
5.2. Tilt Mechanism Adjustment
The chair features an infinitely adjustable tilt mechanism:
- Sådan aktiverer/deaktiverer du vipning: Push the same lever (used for height adjustment) inwards to lock the chair in an upright position, or pull it outwards to allow the chair to tilt freely.
- Sådan justeres hældningsspændingen: Rotate the round knob located under the front of the seat. Turn clockwise to increase tension (making it harder to tilt) or counter-clockwise to decrease tension (making it easier to tilt).

Billede 5.1: En detaljeret view of the chair's control levers and the tilt tension adjustment knob located beneath the seat.
6. Vedligeholdelse
Proper maintenance will extend the life and appearance of your chair.
- Rensning: Til generel rengøring skal overfladerne tørres af med en blød,amp cloth. For stubborn stains on polyurethane, vinyl, or fabric, use a mild soap solution and dry immediately. Avoid abrasive cleaners or solvents.
- Hardwarekontrol: Kontrollér regelmæssigt alle skruer og bolte for at sikre, at de er stramme. Spænd dem igen om nødvendigt for at opretholde stabilitet og sikkerhed.
- Hjulpleje: Keep the wheels free of hair, dust, and debris to ensure smooth movement.
- Undgå direkte sollys: Langvarig udsættelse for direkte sollys kan forårsage falmning og materialenedbrydning.
7. Fejlfinding
Hvis du støder på problemer med din stol, kan du se følgende almindelige problemer og løsninger:
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Chair is unstable/wobbly | Løse skruer eller ujævnt gulv. | Kontrollér og spænd alle monteringsskruer. Sørg for, at stolen står på en plan overflade. |
| Svært ved at justere højden | Fejl eller blokering af gaslift. | Ensure the lever is fully engaged. Check for any obstructions around the gas lift. If the issue persists, contact support. |
| Chair squeaks | Løse forbindelser eller friktion mellem dele. | Spænd alle skruer. Påfør en lille mængde silikone-smøremiddel på de bevægelige dele, hvis det er nødvendigt. |
| Hjulene ruller ikke jævnt | Affald i hjul eller beskadigede hjul. | Clean wheels of any hair or debris. If a wheel is damaged, it may need replacement. |
8. Specifikationer
Key technical specifications for the tectake 403457 Racing Mike Office Chair:
| Feature | Detalje |
|---|---|
| Modelnummer | 403457 (also 403452 or 4061173072955) |
| Mærke | tectake |
| Farve | Sort |
| Materialer | Polyurethane, Plastic, Vinyl, Fabric |
| Sæde materiale | Kunstigt læder |
| Rammemateriale | Plast |
| Anbefalet maksimumvægt | 100 kg (220 lbs) |
| Overall Height (adjustable) | 104.5 - 114.5 cm |
| Seat Height (adjustable) | 47 - 57 cm |
| Ryglænets højde | 63 cm |
| Sædemål (B x D) | Ca. 50 cm x 51 cm |
| Armrest Height from Seat | 23 cm |
| Grunddiameter | Ca. 70 cm |
| Særlige funktioner | Ergonomic, Tilt Mechanism |
9. Garanti og support
For warranty information, please refer to the terms and conditions provided by your retailer at the time of purchase. Specific warranty periods and coverage may vary.
If you require technical assistance, have questions about assembly, or need to report a defect, please contact the tectake customer support or your point of purchase. Have your model number (403457) and purchase details ready when contacting support.