How do I stop my office chair from leaning all the way back?

Question

My chair was fine this morning, but now its stuck leaning all the way back. My brother told me he was sitting it in backwards with his knees where the seat and backrest meet, and was leaning forward that way when it went back and won't return.

I see a lever that will raise and lower it, as well as another adjustments that you can twist.

Answer 1

If he didn't break it, that knob is supposed to increase or decrease the tension in the flexibility of the back rest. but if its locked all the way back or has no tension to straighten up he probably broke it.

Answer 2

im not sure but check the lever that raise and lower, it might push in and pull out locking it, try that. u might want to flip the chair over to get a better look. good luck