adjusting hydraulics

adover

Hey,
Ive got a set of hayes hfx 9's on my bike, unfortunately, when the bike was in my car without the wheels on the brake levers must've been pulled, which means now that when i use my bike the brakes are always on!! how do i go about adjusting them??
cheers

Ciaran500

Take the wheels off and the brake pads out, then push on the piston until they go back in. Then put the wheels back on and they will readjust when you pull the lever.

dav1

B. Piston(s) Pumped Out
If the brake lever is stroked without the disc between the pads (and this is possible when brake pads are being
changed), the self-adjusting feature will allow the pads to push out. The caliper pistons will be pumped out of their bore.
This will cause excessive drag on the disc when the wheel and disc are reinstalled, or even make it impossible to install
the wheel and disc.
To fix this problem…
1. Remove the brake pads from the caliper if they are not already removed.
2. Hint: If the pads are pushed together tight, slide a series of thin cards between the pads to initiate a
gap and enlarge the gap until it is large enough to pull the pads out. If you are going to replace the pads anyway, you
can use a screwdriver instead of the cards to create the gap. But the screwdriver will break the friction material apart
and the pads will definitely have to be discarded.
3. With the pads removed, push the pistons all the way back into the caliper using the box end of a 10 mm
end wrench.
Caution: Don’t push on the post in the center of the piston because that will bend the post. Walk the piston back and
forth until the piston is all the way back in the bore. Do the same thing on the other side.
4. When the pistons are back into their bores, replace the pads – putting them in at a slight angle so that the spring
catches the post on the piston.

copy and pasted out of the manual http://www.hayesdiscbrake.com/pdf/45-14 ... ForWeb.pdf

adover

spot on! cheers lads!