On my Trek Fuel Ex6 I have a Rock Shox Recon Air fork with rebound valve. The valve has a 2,5mm allen key for adjustment, but it seems broken. The [Trek Suspension Setup Guide](http://www.trekbikes.com/us/en/resources/suspension_setup) tells me to set the rebound to 8 clicks out, however if I turn the screw it does not click any more. Two months ago when I turned it it did click.

Any option to fix this problem?

**UPDATE**
The problem was in the screw. It was damaged. It wasn't griped. So the only solution was to carry it to a specialized bike store