If you lost/gained weight only the Dynamic should be re-adjusted.
The Dynamic has a weight knob at the front under the seat. After loosening this knob you can shift it up (for a lighter setting) or down (for a heavier setting). For further help, please, consult our instruction video.
The ComfortMove, the CorrectSit and the ErgoSolex can be used by your colleague, as long as this person is not significantly taller or shorter.
With the Dynamic, both the height and the weight matter. It is advisable to re-adjust the weight settings for each user. The Dynamic has a weight knob at the front under the seat. After loosening this knob you can shift it up (for a lighter setting) or down (for a heavier setting).
For assistance on how to adjust the weight setting, please view the instruction video on the Dynamic product page.
Yes, that is possible, by exchanging your current gas cylinder for a higher one.
Please, measure your current gas cylinder, which has one of the following heights: 19, 23, 28, 31 or 37 cm. Contact our customer service via the "Service and Repair" form to request a new cylinder that is higher than your current gas cylinder.
On the Service and Repair form you can also find a link where you can download an instruction of how to exchange gas cylinders. See "Dismantling Dynamic".
There could be two reasons why the seat won't tilt:
1. The weight might be set too heavy. Try to lower the knob at the front under the seat.
2. If that does not solve the problem, it could be that one of the springs inside the mechanism is broken. In that case, please fill out a Service and Repair form. We will pick up the stool and repare it in our warehouse.
There could be a number of reasons for the different models:
Dynamic: Does the seat tilt backward enough? If not: adjust the weight knob at the front under the seat (loosen, shift to to a higher level and tighten again).
Some models of the CorrectSit and the ErgoSolex have a seat tilt that can be adjusted with the handle on the left side of the seat. Set the seat to a more backward tilted angle.
The ComfortMove has an automatic built-in seat tilt. This automatic tilt only works if you are properly seated deep in in the seat. If you sit on the tip of the chair, or even half way in the middle of the seat, the seat tilts forward and you may slide off. If you seat deap in the chair with the back rest supporting your spine, the seat tilt works properly and you won't slide off - instead: you will enjoy proper posture support that the chair is designed and famous for.
- Slippery clothing, like silk or nylon, can cause sliding as well.
- Worn or hardened upholstery due to the wrong cleaning detergents that contain alcohol. In that case, the seat needs to be replaced.
Most probably there is a defect in the back plate, which causes the little knob on the lumbar support to refuse to click-in anymore. This is easy to fix and replace by yourself. Please go to our home page and fill out a Service and Repair form.