Problem turning off water to toilet

[Phineas]

I had assumed the Legend supply stop valve was a quarter-turn type and easy to use. But it will not turn. As the photo shows, there is a metal tab that appears to be preventing the valve from turning. What should I do? I want to shut off the water to the toilet so I can repair the Kohler auto-piston inside. Thanks in advance for your help.

 

[WorthFlorida]

Looks like you pull up the handle to clear the locking tab Then turn the knob 1/4 turn.

 

[Sponsor]

 

[Phineas]

Thanks for the reply. I finally solved the problem and got it to turn; no lifting required. I had been afraid of breaking something by using too much force, and the handle probably hadn't been turned in years. It finally gave way and turned.

 

[Reach4]

Looks like you pull up the handle to clear the locking tab Then turn the knob 1/4 turn.

And if that does not work, I would apply more force. In the photo, it looks like the tab is not actually serving as a stop, at least yet.

Or maybe you found info beyond the photos.