How to unscrew bleeding nipple?

[ptran]

I'm having a difficult time unscrewing the caliper nipple to get air out. I know the rest of the precedures in the bleeding process but just having a hard time with the nipple.

I've been trying to use pliers and pulling the thing upwards but no luck.

Am i suppose to unscrew it with a small wrench at the base where the nipple protrudes out of?

I also lost the rubber caps that go on the nipples. are the caps needed?

[chronoti]

yes your sposta turn it with a wrench at the base

dont worry about the rubber caps they just there for show and keeping dirt off it

[sr20de2]

Might be a good idea to use a flare nut wrench so you lessen the chance off rounding it off.
just my .002. it should just unscrew.

archie

[atobe]

i believe it's a 8mm wrench will do the job perfectly

[toyrolla]

^^^ 8mm is correct. I just did mine 2 wks ago. 1 complete turn is all you need.

[ptran]

Thanks everyone for the help. will do this weekend