I've ordered a chair from Argos, however, after assembly, the gas lift fails to elevate the chair -in fact, pulling the lever on the side seems to have no effect at all (it just swings back & forth). The seat support seems to have a cylinder marked x <--> 1, however that also fails to make any effect.
Is the gas lift needs to be activated separately, or am I missing something obvious here? (chair is already a replacement, previous one had the same problem, so I'm assuming it's not manufacturer problem)
Terribly sorry for the newb question, would really appreciate constructive suggestions.