
If you actually follow step 2 as shown in the figure, the chair cannot be moved up and down. The "lid" that you remove from the inside of the cylinder is orange in color and is very important. The cover you need to remove is black and we had it on the underside of the chair seat. When you remove the orange "cap" from the cylinder, you ensure that the lever on the seat does not operate the gas cylinder and you cannot raise the seat from the height specified by the manufacturer. chair but now it's useless to everyone except one of my family members who turned out to be the ideal height for this stationary short chair.

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