Opening bleeders one at a time on alternate ends of the system and gently applying the brake will also center the switch. Just use short, gentle strokes on the pedal. It doesn't take much force to move the shuttle valve back and forth.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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