Xantia Handbrake

[Malcolm]

A discussion at work re colleague with a Fiat and handbrake operating to rear discs requiring specific tool push pistons in. Having done this on two Xantias using a piece of bar to rotate clockwise when pushing piston back in, as instructed by Haines, I added my piece.

The discussion changed to what is the principle of the lever in caliper -

does the lever apply it's pressure onto piston to operate and is this why a rotation is req'd to push piston back in? Any info greatly appreciated.

Thanks Malcolm

[citronut]

inside these calipers with biult in hand brake there is two pistons,the inner one has a conical thear it runs up on as the caliper adjusts up,so when you reset the caliper on fitting new pads you have to whind the piston back in,i think the lever just pushes on the con shaped thread
regards malcolm

[Malcolm]

Thanks for the reply. I've only just got back from work so couldn't reply earlier. Thanks for the info, Malcolm